WPF display content based on treeview selected item

WPF display content based on treeview selected item - c#

I was able to retrieve selected item value from my treeview. Now I want to change the content in ScrollViewer control based on that value. I'm trying to display property values of Facility object which contains Containments which contains Tanks.
I'm new to programming sorry if my explanation is not clear enough.
Thank you.
MyWindow.xaml
<Window.DataContext>
<local:VisioFacilityExportViewModel/>
</Window.DataContext>
<Window.Resources>
<DataTemplate x:Key="FacilityTemplate">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="200"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<Label Content="Facility ID:"/>
<TextBox Grid.Row="0" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].FacilityID}"/>
<Label Content="Address:" Grid.Row="1"/>
<TextBox Grid.Row="1" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].Address}"/>
<Label Content="Description:" Grid.Row="2"/>
<TextBox Grid.Row="2" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].Description}"/>
<Label Content="Layout And Drainage:" Grid.Row="3"/>
<TextBox Grid.Row="3" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].LayoutAndDrainage}"/>
<Label Content="Latitude:" Grid.Row="4"/>
<TextBox Grid.Row="4" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].Latitude}"/>
<Label Content="Longitude:" Grid.Row="5"/>
<TextBox Grid.Row="5" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].Longitude}"/>
<Label Content="City:" Grid.Row="6"/>
<TextBox Grid.Row="6" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].City.Name}"/>
<Label Content="County:" Grid.Row="7"/>
<TextBox Grid.Row="7" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].County.Name}"/>
<Label Content="Name:" Grid.Row="8"/>
<TextBox Grid.Row="8" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].Name}"/>
<Label Content="Run:" Grid.Row="9"/>
<TextBox Grid.Row="9" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].Run}"/>
<Label Content="Surface Flow Direction:" Grid.Row="10"/>
<TextBox Grid.Row="10" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].SurfaceFlowDirection}"/>
<Label Content="API Number:" Grid.Row="11"/>
<TextBox Grid.Row="11" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].APINumber}"/>
<Label Content="Distance To Navigable Waters:" Grid.Row="12"/>
<TextBox Grid.Row="12" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].DistanceToNavigableWaters}"/>
<Label Content="Project Phase:" Grid.Row="13"/>
<TextBox Grid.Row="13" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].APINumber}"/>
<Label Content="Unique ID:" Grid.Row="14"/>
<TextBox Grid.Row="14" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].UniqueID}"/>
<Label Content="Operational Field:" Grid.Row="15"/>
<TextBox Grid.Row="15" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].OperationalField}"/>
<Label Content="Facility Type:" Grid.Row="16"/>
<TextBox Grid.Row="16" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].FacilityType}"/>
<Label Content="Project Number:" Grid.Row="17"/>
<TextBox Grid.Row="17" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].ProjectNumber}"/>
<Label Content="Project Phase:" Grid.Row="18"/>
<TextBox Grid.Row="18" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].ProjectPhase}"/>
<Label Content="Report Number:" Grid.Row="19"/>
<TextBox Grid.Row="19" Grid.Column="1" Height="20" Text="{Binding ListFacilities[0].ReportNumber}"/>
</Grid>
</DataTemplate>
<DataTemplate x:Key="ContainmentTemplate">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="200"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<Label Content="Name:"/>
<TextBox Grid.Column="1" Height="20" Text="{Binding ListContainments[0].Name}"/>
<Label Content="Height:" Grid.Row="1"/>
<TextBox Grid.Row="1" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].Height}"/>
<Label Content="Diameter:" Grid.Row="2"/>
<TextBox Grid.Row="2" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].TankPadHeight}"/>
<Label Content="County:" Grid.Row="3"/>
<TextBox Grid.Row="3" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].TankPadWidth}"/>
<Label Content="Inner Length:" Grid.Row="4"/>
<TextBox Grid.Row="4" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].TankPadLength}"/>
<Label Content="Inner Width:" Grid.Row="5"/>
<TextBox Grid.Row="5" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].InnerLength}"/>
<Label Content="Top Length:" Grid.Row="6"/>
<TextBox Grid.Row="6" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].InnerWidth}"/>
<Label Content="Top Width:" Grid.Row="7"/>
<TextBox Grid.Row="7" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].TopLength}"/>
<Label Content="Construction:" Grid.Row="8"/>
<TextBox Grid.Row="8" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].TopWidth}"/>
<Label Content="Fill Materials:" Grid.Row="9"/>
<TextBox Grid.Row="9" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].Construction}"/>
<Label Content="Fill Material Height (Top):" Grid.Row="10"/>
<TextBox Grid.Row="10" Grid.Column="1" Height="20" Text="{Binding ListContainments[0].Diameter}"/>
</Grid>
</DataTemplate>
<DataTemplate x:Key="TanksTemplate">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="200"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<Label Content="Name:"/>
<TextBox Grid.Column="1" Height="20" Text="{Binding ListTanks[0].Name}"/>
<Label Content="Height:" Grid.Row="1"/>
<TextBox Grid.Row="1" Grid.Column="1" Height="20" Text="{Binding ListTanks[0].Height}"/>
<Label Content="Diameter:" Grid.Row="2"/>
<TextBox Grid.Row="2" Grid.Column="1" Height="20" Text="{Binding ListTanks[0].Diameter}"/>
<Label Content="Is in Service:" Grid.Row="3"/>
<TextBox Grid.Row="3" Grid.Column="1" Height="20" Text="{Binding ListTanks[0].IsInService}"/>
<Label Content="Is on Pad:" Grid.Row="4"/>
<CheckBox Grid.Row="4" Grid.Column="1" Height="20" IsChecked="{Binding ListTanks[0].IsOnPad}"/>
<Label Content="Contents:" Grid.Row="5"/>
<TextBox Grid.Row="5" Grid.Column="1" Height="20" Text="{Binding ListTanks[0].Contents}"/>
<Label Content="Year Constructed:" Grid.Row="6"/>
<TextBox Grid.Row="6" Grid.Column="1" Height="20" Text="{Binding ListTanks[0].YearConstructed}"/>
<Label Content="Material:" Grid.Row="7"/>
<TextBox Grid.Row="7" Grid.Column="1" Height="20" Text="{Binding ListTanks[0].Material}"/>
<Label Content="Is Portable:" Grid.Row="8"/>
<CheckBox Grid.Row="8" Grid.Column="1" Height="20" IsChecked="{Binding ListTanks[0].IsPortable}"/>
<Label Content="Is Isolated:" Grid.Row="9"/>
<CheckBox Grid.Row="9" Grid.Column="1" Height="20" IsChecked="{Binding ListTanks[0].IsIsolated}"/>
<Label Content="Quantity:" Grid.Row="10"/>
<TextBox Grid.Row="10" Grid.Column="1" Height="20" Text="{Binding ListTanks[0].Quantity}"/>
<Label Content="Orientation:" Grid.Row="11"/>
</Grid>
</DataTemplate>
</Window.Resources>
<Grid Margin="5" Height="Auto">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<TreeView Name="trvFacility" ItemsSource="{Binding MenuItems}" VirtualizingStackPanel.IsVirtualizing="True" Padding="10" Margin="5" Width="220">
<i:Interaction.Behaviors>
<local:BindableSelectedItemBehavior SelectedItem="{Binding SelectedItem,Mode=TwoWay}"/>
</i:Interaction.Behaviors>
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding Children}" DataType="{x:Type entities:MenuItemCust}">
<TextBlock Text="{Binding Name}"/>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
</TreeView>
<ScrollViewer Grid.Row="0" Grid.Column="1" Margin="5" VerticalScrollBarVisibility="Visible">
DataTemplate here
</ScrollViewer>
<Button Content="Save" Grid.Row="1" Grid.ColumnSpan="2" Grid.Column="0" Width="60" Height="25" Margin="0,0,5,0" HorizontalAlignment="Right"/>
</Grid>
MyWindowViewModel.cs
public class VisioFacilityExportViewModel : INotifyPropertyChanged
{
public VisioFacilityExportViewModel()
{
_lstFacilities = new ObservableCollection<Facility>(DatabaseHandler.GetFacilities().Where(f => f.FacilityID == 2015012314001933));
_lstContainments = _lstFacilities[0].Containment;
_lstTanks = _lstContainments[0].Tanks;
List<MenuItemCust> lstRoot = new List<MenuItemCust>();
List<MenuItemCust> lstContainment = new List<MenuItemCust>();
List<MenuItemCust> lstTanks = new List<MenuItemCust>();
MenuItems = new List<MenuItemCust>();
foreach (var f in _lstFacilities)
{
foreach (var c in f.Containment)
{
lstTanks.AddRange(c.Tanks.Select(t => new MenuItemCust { Name = t.Name, Info = "Tanks"}));
lstContainment.Add(new MenuItemCust { Name = c.Name, Children = lstTanks, Info = "Containment" });
}
lstRoot.Add(new MenuItemCust { Name = "Containment", Children = lstContainment, Info = "Facility"});
MenuItems.Add(new MenuItemCust { Name = "Facility", Children = lstRoot });
}
}
private ObservableCollection<Tank> _lstTanks;
public ObservableCollection<Tank> ListTanks
{
get { return _lstTanks; }
set
{
_lstTanks = value;
NotifyPropertyChanged("ListTanks");
}
}
private ObservableCollection<Containment> _lstContainments;
public ObservableCollection<Containment> ListContainments
{
get { return _lstContainments; }
set
{
_lstContainments = value;
NotifyPropertyChanged("ListContainments");
}
}
private ObservableCollection<Facility> _lstFacilities;
public ObservableCollection<Facility> ListFacilities
{
get { return _lstFacilities; }
set
{
_lstFacilities = value;
NotifyPropertyChanged("ListFacilities");
}
}
private List<MenuItemCust> _menuItems;
public List<MenuItemCust> MenuItems
{
get { return _menuItems; }
set
{
_menuItems = value;
NotifyPropertyChanged("MenuItems");
}
}
private static object _selectedItem = null;
public static object SelectedItem
{
get { return _selectedItem; }
private set
{
if (_selectedItem != value)
{
_selectedItem = value;
OnSelectedItemChanged();
}
}
}
public static void OnSelectedItemChanged()
{
var item = (MenuItemCust) SelectedItem;
if (item.Name == "Facility")
{
}
else if (item.Info == "Containment")
{
}
else if (item.Info == "Tanks")
{
}
}
#region iNotifyPropertyChanged
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void NotifyPropertyChanged(string property)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(property));
}
#endregion
}

I think what you want to do is display informations in a UserControl which will contains a grid with differents controls like textblock and textbox.
So you are going to create a new UserControl named FacilityView and FacilityViewModel and the FacilityView will contains a grid with ur Facility Ojbect property
First of all, I would create an property in MyWindowViewModel called
private Facility currentFacility;
public Facility CurrentFacility
{
get{return currentFacility;}
set{ currentFacility = value ;
notifyPropertyChange("CurrentFacility")
}
In your MainWindowsView (xaml)
<DataTemplate DataType="{x:Type localAdder:FacilityViewModel}">
<localAdder:FacilityView />
</DataTemplate>
<UserControl Grid.Row="1" Grid.Column="2"
Content="{Binding CurrentFacility,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged,NotifyOnSourceUpdated=True}">
</UserControl>
And in your SelectedItem you would
if (selectedItem is Facility)
{
CurrentFacility = new FacilityViewModel(selectedItem as Facility);
}
Sry for the bad indentation im not use to this writing code.
EDIT2:
Okay, you have 2 choice, first of all u can create a BaseViewModel which will implements INotifyPropertyChanged.
FacilityViewModel : BaseViewModel
TankViewModel : BaseViewModel
ContainmentViewModel : BaseViewModel
This way you will change CurrentFacilityViewModel to CurrentBaseViewModel
private BaseViewModel currentBaseXXX;
public BaseViewModel CurrentBaseXXX
{
get{return currentBaseXXX;}
set{ currentBaseXXX= value ;
notifyPropertyChange("CurrentBaseXXX")
}
And in your SelectedItem you would
if (selectedItem is Facility)
{
CurrentBaseXXX= new FacilityViewModel(selectedItem as Facility);
}
if (selectedItem is Tank)
{
CurrentBaseXXX= new TankViewModel(selectedItem as Tank);
}
if (selectedItem is Containers)
{
CurrentBaseXXX= new ContainersViewModel(selectedItem as Containers);
}
Options2
You would have 3 current so
CurrentFacilityVM
CurrentTankVM
CurrentContainerVM
And in your SelectedItem you would
CurrentFacilityVM = null;
CurrentTankVM =null;
CurrentContainerVM =null;
if (selectedItem is Facility)
{
CurrentFacilityVM = new FacilityViewModel(selectedItem as Facility);
}
if (selectedItem is Tank)
{
CurrentTankVM = new TankViewModel(selectedItem as Tank);
}
if (selectedItem is Containers)
{
CurrentContainerVM = new ContainersViewModel(selectedItem as Containers);
}

You can dynamically Load the data template based on Type. Refer the below. You can toggle the template by change the instance of the SelectedItem to a Different class.
<Window.Resources>
<DataTemplate DataType="{x:Type entities:Facility}">
<Grid>
<TextBlock Text="{Binding FacilityName}" />
</Grid>
</DataTemplate>
<DataTemplate DataType="{x:Type entities:Containment}">
<Grid>
<TextBlock Text="{Binding ContainmentName}"/>
</Grid>
</DataTemplate>
<DataTemplate DataType="{x:Type entities:Tank}">
<Grid>
<TextBlock Text="{Binding TankName}"></TextBlock>
</Grid>
</DataTemplate>
</Window.Resources>
<Grid Margin="5" Height="Auto">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<ScrollViewer Grid.Row="0" Grid.Column="1" Margin="5" VerticalScrollBarVisibility="Visible" DataContext="{Binding SelectedItem}">
<ContentControl Content="{Binding }"/>
</ScrollViewer>
<Button Content="Save" Grid.Row="1" Grid.ColumnSpan="2" Grid.Column="0" Width="60" Height="25" Margin="0,0,5,0" HorizontalAlignment="Right"/>
</Grid>
public partial class Download : Window
{
public Download()
{
InitializeComponent();
this.DataContext = new VisioFacilityExportViewModel();
}
}
public class VisioFacilityExportViewModel : INotifyPropertyChanged
{
public VisioFacilityExportViewModel()
{
//SelectedItem = new Facility() { FacilityName = "Facility" };
//SelectedItem = new Tank() { TankName = "Tank" };
SelectedItem = new Containment() { ContainmentName = "Containment" };
}
private object _selectedItem = null;
public object SelectedItem
{
get { return _selectedItem; }
private set
{
if (_selectedItem != value)
{
_selectedItem = value;
NotifyPropertyChanged("SelectedItem");
}
}
}
#region iNotifyPropertyChanged
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void NotifyPropertyChanged(string property)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(property));
}
#endregion
}
public class Tank
{
private string myVar;
public string TankName
{
get { return myVar; }
set { myVar = value; }
}
}
class Facility
{
private string myVar;
public string FacilityName
{
get { return myVar; }
set { myVar = value; }
}
}
class Containment
{
private string myVar;
public string ContainmentName
{
get { return myVar; }
set { myVar = value; }
}
}

Related

Access Custom Class Variables in a ViewModel through binding

What I want to do is to be able to access an object's properties through a bound textblock that is found in a viewModel class. So say I want to access the OrderID of the Orders class in a bound textblock that is stored in a viewModel class.
What I have for that is:
<textblock text="{Binding Path=Order.OrderID}"/>
This is connected to the order's orderID as when I change the OrderID in the ViewModel class the change is reflected in the textblock. The problem occurs when I try to load the OrderID from another class.
The Other class:
public class ModifyOrder
{
private ViewModel boundData;
public ModifyOrder()
{
boundData = new ViewModel();
}
public void ChangeOrderID()
{
boundData.Order.OrderID = 10;
}
}
The changes here don't get transfered to the static _Order in the ViewModel class.
This is the viewModel class:
public class ViewModel : INotifyPropertyChanged
{
private Orders _Order;
public Orders Order
{
get { return _Order; }
set
{
if (_Order != value)
{
_Order = value;
}
}
}
public ViewModel()
{
Order = new Orders();
}
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
I have the ViewModel class loaded into the UI's DataContext and my other bound variables in the ViewModel class work fine but for some reason either the bound textblock isn't accessing the Order.OrderID (Which I don't think is the problem since I can modify the Order.OrderID in the ViewModel class and the changes are reflected) OR the class that's modifying my Order isn't able to modify the OrderID.
I've already tried to load a new Order class with the new OrderID and then try to load the ViewModel's _Order with the ModifyOrder's new Order but that hasn't worked out either.
This is the Orders class:
public class Orders : INotifyPropertyChanged
{
private int _OrderID;
public int OrderID
{
get { return _OrderID; }
set
{
if(_OrderID != value)
{
_OrderID = Value
OnPropertyChanged(nameof(OrderID));
}
}
}
public event PropertyChangedEventHandler PropertyChanged;
private void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
<Page x:Class="SPWally.FunctionalPages.LookupOrders"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:SPWally.FunctionalPages"
mc:Ignorable="d"
d:DesignHeight="450" d:DesignWidth="800"
Title="LookupOrders">
<Grid Background="AliceBlue">
<Grid.RowDefinitions>
<RowDefinition Height="50"/>
<RowDefinition Height="30"/>
<RowDefinition Height="*"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="20"/>
<RowDefinition Height="*"/>
<RowDefinition Height="50"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="30" Text="Search For Order" />
<TextBlock Grid.Row="1" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,335,0" Text="OrderID: " />
<TextBox Grid.Row="1" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Width="300" Margin="0,0,20,0" Text="{Binding Path=OrderIDSearch, Mode=OneWayToSource, UpdateSourceTrigger=PropertyChanged}" />
<Button Grid.Row="1" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Center" Width="40" Height="20" Margin="10,0,0,0" Content="Find" Click="Find_Click" />
<Button Grid.Row="1" Grid.Column="1" HorizontalAlignment="Left" VerticalAlignment="Center" Width="50" Height="20" Margin="70,0,0,0" Content="Refund" Click="Refund_Click" />
<TextBlock Grid.Row="3" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,100,0" Text="OrderID:"/>
<TextBlock Grid.Row="4" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,100,0" Text="Customer:"/>
<TextBlock Grid.Row="5" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,100,0" Text="Product:"/>
<TextBlock Grid.Row="6" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,100,0" Text="Branch:"/>
<TextBlock Grid.Row="7" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,100,0" Text="Sales Price:"/>
<TextBlock Grid.Row="8" Grid.Column="0" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="0,0,100,0" Text="Quantity:"/>
<TextBlock Grid.Row="3" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Width="200" Margin="30,0,0,0" Text="{Binding Path=Order.OrderID, Mode=TwoWay}"/>
<TextBlock Grid.Row="4" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Width="200" Margin="30,0,0,0" Text="{Binding Path=Order.Customer.FullName, Mode=TwoWay}"/>
<TextBlock Grid.Row="5" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Width="200" Margin="30,0,0,0" Text="{Binding Path=Order.Product.ProductName, Mode=TwoWay}"/>
<TextBlock Grid.Row="6" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Width="200" Margin="30,0,0,0" Text="{Binding Path=Order.Branch.BranchName, Mode=TwoWay}"/>
<TextBlock Grid.Row="7" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Width="200" Margin="30,0,0,0" Text="{Binding Path=Order.SalesPrice, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
<TextBlock Grid.Row="8" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Width="200" Margin="30,0,0,0" Text="{Binding Path=Order.Stocks, Mode=TwoWay}"/>
<Button Grid.Row="10" Grid.Column="0" Grid.ColumnSpan="2" HorizontalAlignment="Center" VerticalAlignment="Center" Width="60" Height="25" Content="Cancel" Command="{x:Static NavigationCommands.BrowseBack}" />
</Grid>
</Page>
Keep in mind that I've literally learned everything I know about data binding in the last 48 hours so bear with me here.
Any kind of help at all is very much appreciated. Thank!

You need to implement INotifyPropertyChanged in Orders class.
You need to Invoke OnPropertyChanged() inside all setters.

Where your view model is getting instantiated ? I guess since you are recreating your viewmodel instance in ModifyOrder class
boundData = new ViewModel();
binding is lost and may be because of that its not showing up .

...Yeah, so. It was the
public ViewModel()
{
Order = new Order();
}
that was wiping clean the private static Orders _Order in the ViewModel class every time it was instantiated so I changed it to
public ViewModel()
{
if (_Order == null)
{
Order = new Order();
}
}
and that fixed the problem...
Thanks to everyone that helped me out with this! I learned a lot from you all!
I'm going to go cry myself to sleep now <3

Bind Listbox items from library datatemplate

Application is WPF .netframework
I need to bind properties as itemsource to listbox from class which is in .dll. There is the main problem because if I Bind some other Collection which doesn't have Model in dll. it works, but I need to have it in library.
xmlns:c="clr-namespace:MessageLibrary;assembly=MessageLibrary"
I don't know how to fix it, I tried almost everything
I looked at MSDN and there was the exactly same example a nothing work. I'll be very thankful to somebody solve this please
Here is the ItemSourceCollection in MainViewModel
public ObservableCollection<ViewModelUser> AllUsers { get; set; }
public ObservableCollection<ViewModelRoom> AllRooms { get; set; }
AllUsers = new ObservableCollection<ViewModelUser>();
AllRooms = new ObservableCollection<ViewModelUser>();
Here is my xaml class:
<Window x:Class="ChatsUPClient.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:ChatsUPClient"
xmlns:vm="clr-namespace:ChatsUPClient.ViewModel"
xmlns:c="clr-namespace:MessageLibrary;assembly=MessageLibrary"
Title="ChatsUP" Height="600" Width="900">
<Window.DataContext>
<vm:MainViewModel />
</Window.DataContext>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="200"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="100"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="24"/>
<RowDefinition Height="24"/>
<RowDefinition Height="*"/>
<RowDefinition Height="24"/>
</Grid.RowDefinitions>
<TextBlock x:Name="UserNameTextBlock" Grid.Column="1" Grid.Row="0" Text="{Binding Path=LRName, UpdateSourceTrigger=PropertyChanged}" TextAlignment="Right"></TextBlock>
<TextBox x:Name="MessageTextBox" Grid.Column="1" Grid.Row="3" TextWrapping="NoWrap" Text="{Binding Path=Input, Mode=TwoWay}"/>
<TextBox x:Name="MessageTimeLine" Grid.Column="1" Grid.Row="1" Grid.RowSpan="2" TextWrapping="Wrap" Text="{Binding Path=Output}" Grid.ColumnSpan="2" IsReadOnly="True" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto" FontFamily="Lucida Sans Typewriter"/>
<Button x:Name="SendBtn" Content="Odeslat" Grid.Column="3" Grid.Row="3" Command="{Binding Path=ProcessCommand}"/>
<Button x:Name="CreateRoomBtn" Content="Vytvořit místnost"/>
<TextBox x:Name="CreateRoomName" Grid.Row="1"></TextBox>
<Grid Grid.Row="2" RenderTransformOrigin="0.505,0.438">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<ListBox Grid.Column="0" Grid.Row="2" ItemsSource="{Binding AllRooms}" >
<ListBox.ItemTemplate>
<DataTemplate DataType="{x:Type c:ViewModelUser}">
<TextBlock Text="{Binding Path= NameOfconversation}"></TextBlock>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<ListBox Grid.Column="0" Grid.Row="0" ItemsSource="{Binding AllUsers}">
<ListBox.ItemTemplate>
<DataTemplate DataType="{x:Type c:ViewModelUser}">
<TextBlock Text="{Binding NickName}"> </TextBlock>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
<Button x:Name="Entry" Grid.Row="3" Grid.Column="0" Content="Vstoupit"></Button>
<StackPanel Grid.Column="1" Grid.Row="2" VerticalAlignment="Center" x:Name="LoginPanel">
<TextBlock HorizontalAlignment="Center">Enter Name and Password</TextBlock>
<TextBox x:Name="NameTextBox" Text="{Binding Path=LRName}"/>
<TextBox x:Name="PasswordTextBox" Text="{Binding Path=LRPassword}"/>
<Button Content="Přihlásit se/Registrovat" Command="{Binding Path=LogingCommand}" Click="OnSave" />
</StackPanel>
</Grid>
class in library looks like this:
public class ViewModelUser
{
public int UserId { get; set; }
public string NickName { get; set; }
public string Password { get; set; }
}

WPF binding to nested List , Listbox not updating

I'm currently trying to bind my list to a list that is in another object from another list. But in the second listbox the Items just doesn't appear.
XAML
<Window x:Class="Managing_program.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:Managing_program"
mc:Ignorable="d"
Title="Dashboard" Height="416.701" Width="867.828">
<Grid>
<TabControl Margin="0,26,0,0">
<TabItem Header="Tables">
<Grid Background="White" Margin="0,0,-2,0">
<Button Content="Add" Margin="10,0,0,10" Height="20" VerticalAlignment="Bottom" HorizontalAlignment="Left" Width="75" Command="{Binding AddTableCommand}"/>
<Button Content="Remove" Margin="90,0,0,10" HorizontalAlignment="Left" Width="75" Height="20" VerticalAlignment="Bottom" Command="{Binding RemoveTableCommand}"/>
<GroupBox Header="Fields" HorizontalAlignment="Left" Margin="204,0,0,35" Width="192" FontWeight="Bold">
<Grid ShowGridLines="False">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<ListBox Grid.Row="0" BorderThickness="2" ItemsSource="{Binding SelectedTable.Fields}" SelectedItem="{Binding SelectedField}" Margin="0 4" FontWeight="Normal">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<Label Content="test"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
<TextBox Grid.Row="1" Margin="2" Text="{Binding FieldNameToAdd, Mode=TwoWay , UpdateSourceTrigger=PropertyChanged}"/>
</Grid>
</GroupBox>
<GroupBox Header="Tables" HorizontalAlignment="Left" Width="199" Margin="0,0,0,35" FontWeight="Bold">
<Grid ShowGridLines="False">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="30"/>
</Grid.RowDefinitions>
<TextBox x:Name="tbAddTable" Grid.Row="1" Margin="2" Text="{Binding Path=TableNameToAdd, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"/>
<ListBox Grid.Row="0" ItemsSource="{Binding Tables}" SelectedItem="{Binding SelectedTable}" BorderThickness="2" Margin="0 4" FontWeight="Normal">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel>
<Label Content="{Binding Name}"/>
<Label Content= "{Binding Fields.Count, StringFormat='Fields: {0}'}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
</Grid>
</GroupBox>
<Button Content="Add" Margin="207,0,0,10" Height="20" VerticalAlignment="Bottom" HorizontalAlignment="Left" Width="75" Command="{Binding AddFieldCommand}"/>
<Button Content="Remove" Margin="287,0,0,10" HorizontalAlignment="Left" Width="75" Height="20" VerticalAlignment="Bottom" Command="{Binding RemoveFieldCommand}"/>
<GroupBox Header="Field properties" Margin="401,0,10,35" FontWeight="Bold">
<Grid Margin="10,10,-2,5" ShowGridLines="True" DataContext="{Binding SelectedField}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="28"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="auto"/>
<ColumnDefinition Width="200"/>
</Grid.ColumnDefinitions>
<Label Grid.Row="0" Grid.Column="0" Content="Name:"/>
<Label Grid.Row="1" Grid.Column="0" Content="Label:"/>
<Label Grid.Row="2" Grid.Column="0" Content="Type:"/>
<Label Grid.Row="3" Grid.Column="0" Content="Reference table:"/>
<Label Grid.Row="4" Grid.Column="0" Content="Visible:"/>
<Label Grid.Row="0" Grid.Column="1" Content="{Binding Name}" Margin="10,0,0,0"/>
<TextBox Grid.Row="1" Grid.Column="1" Text="{Binding Label}" Margin="5,2,0,2"/>
<ComboBox Grid.Column="1" Margin="5,5,0,5" Grid.Row="2" BorderBrush="White" RenderTransformOrigin="1.029,0.62">
</ComboBox>
<ComboBox Grid.Column="1" Margin="5,5,-0,121" Grid.Row="3" BorderBrush="White" RenderTransformOrigin="1.029,0.62">
</ComboBox>
</Grid>
</GroupBox>
</Grid>
</TabItem>
<TabItem Header="TabItem">
</TabItem>
</TabControl>
</Grid>
</Window>
MainViewModel:
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
namespace Managing_program.model
{
class MainWindowViewModel: ViewModelBase
{
public MainWindowViewModel()
{
// registering all commands
Tables = new ObservableCollection<Table>();
AddTableCommand = new DelegateCommand(ExecuteAddTableCommand, CanExecuteAddTableCommand);
RemoveTableCommand = new DelegateCommand(ExecuteRemoveTableCommand, CanExecuteRemoveTableCommand);
AddFieldCommand = new DelegateCommand(ExecuteAddFieldCommand, CanExecuteAddFieldCommand);
}
String _fieldNameToAdd = String.Empty;
public String FieldNameToAdd {
get { return _fieldNameToAdd; }
set {
_fieldNameToAdd = value;
OnPropertyChanged("FieldNameToAdd");
}
}
String _tableNameToAdd = string.Empty;
public String TableNameToAdd {
get {return _tableNameToAdd;}
set {
_tableNameToAdd = value;
OnPropertyChanged("TableNameToAdd");
}
}
#region allCommands:
// Add Table Command
public ICommand AddTableCommand { get; set; }
private void ExecuteAddTableCommand(object parameter)
{
Tables.Add(new Table(TableNameToAdd));
TableNameToAdd = String.Empty;
}
private bool CanExecuteAddTableCommand(object paramater)
{
if (TableNameToAdd.Length < 1)
return false;
if (TableNameToAdd.Contains(" "))
return false;
foreach (Table table in Tables)
{
if (table.Name.ToLower() == TableNameToAdd)
return false;
}
return true;
}
// Remove Table Command
public ICommand RemoveTableCommand { get; set; }
private void ExecuteRemoveTableCommand(object paramater){
Tables.Remove(SelectedTable);
}
private bool CanExecuteRemoveTableCommand(object parameter)
{
return SelectedTable != null;
}
// AddFieldCommand
public ICommand AddFieldCommand { get; set; }
private void ExecuteAddFieldCommand(object parameter)
{
SelectedTable.Fields.Add(new Field("test"));
}
private bool CanExecuteAddFieldCommand(object parameter)
{
if (SelectedTable == null)
return false;
if (FieldNameToAdd.Length < 1)
return false;
if (FieldNameToAdd.Contains(" "))
return false;
foreach (Field field in SelectedTable.Fields)
{
if (field.Name.ToLower() == FieldNameToAdd.ToLower())
return false;
}
return true;
}
#endregion
public ObservableCollection<Table> Tables { get; private set; }
public Table SelectedTable { get; set; }
public Field SelectedField { get; set; }
}
}
Table class:
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Managing_program.model
{
class Table
{
public Table(String name)
{
Name = name;
Fields = new ObservableCollection<Field>();
}
public String Name { get; private set; }
public ObservableCollection<Field> Fields { get; private set; }
}
}
The second listbox just doesn't update. Please help!

Okay I found the problem! I had to implement OnPropertyChanged() in the SelectedTable property. It start to work right away after that!

Is not updated selected item on listview (wpf mvvm) if field of item changed

I'm writing my first program with the use wpf and mvvm.
Have a problem, that in the case of changes data in fields of selecteditem, selecting a new item becomes impossible.
If add to listview attribute SelectionMode="Single", then if many times try pick item, exeption:
The element with the same key has already been added.
image: https://www.dropbox.com/s/ey7izl19803uuhc/1.png
If this attribute is removed, then pick another item, simply does not occur.
Image: https://dl.dropboxusercontent.com/u/32438899/2.png
If the data has not changed, the navigation works fine.
XAML code:
<?xml version="1.0" encoding="utf-8" ?>
<Window x:Class="MHConfigurator.Views.MainView"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DataContext="{Binding Path=MainViewModel}"
Title="Редактирование шаблонов писем" Height="Auto" Width="1000" MinWidth="1000" MinHeight="400">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"></RowDefinition>
<RowDefinition></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<DockPanel Grid.Row="0" Margin="7">
<TextBlock DockPanel.Dock="Left" Margin="5,5,2,5" HorizontalAlignment="Left">Поиск:</TextBlock>
<TextBox DockPanel.Dock="Right" Margin="2,2,2,2" HorizontalAlignment="Stretch" Text="{Binding SearchString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></TextBox>
</DockPanel>
<ListView Grid.Row="1" ItemsSource="{Binding Path=MailProperties, Mode=TwoWay}" Width="Auto" HorizontalAlignment="Stretch"
VerticalAlignment="Stretch" Margin="5" SelectedItem="{Binding Path=CurrentProperty, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" >
<ListView.View>
<GridView>
<GridViewColumn DisplayMemberBinding="{Binding ButtonID, Mode=TwoWay}" Header="ID шаблона" Width="Auto" />
<GridViewColumn DisplayMemberBinding="{Binding Description, Mode=TwoWay}" Header="Описание" Width="Auto" />
</GridView>
</ListView.View>
</ListView>
<Grid VerticalAlignment="Center" Grid.Row="2" DataContext="{Binding CurrentProperty}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="250"></ColumnDefinition>
<ColumnDefinition></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
<RowDefinition Height="*"></RowDefinition>
</Grid.RowDefinitions>
<DockPanel Grid.Row="0" Grid.Column="0">
<TextBlock DockPanel.Dock="Left" Margin="5,5,2,5" VerticalAlignment="Center" HorizontalAlignment="Left">ID шаблона:</TextBlock>
<TextBox DockPanel.Dock="Right" Margin="2,2,2,2" VerticalAlignment="Center" HorizontalAlignment="Stretch"
VerticalContentAlignment="Center" Text="{Binding ButtonID}"></TextBox>
</DockPanel>
<DockPanel Grid.Row="1" Grid.Column="0">
<CheckBox DockPanel.Dock="Left" HorizontalAlignment="Left" Margin="5" VerticalAlignment="Center" IsChecked="{Binding FillSubject}">Заполнять тему</CheckBox>
</DockPanel>
<DockPanel Grid.Row="2" Grid.Column="0">
<CheckBox DockPanel.Dock="Left" HorizontalAlignment="Left" Margin="5" VerticalAlignment="Center" IsChecked="{Binding FillTO}">Заполнять адресатов</CheckBox>
</DockPanel>
<DockPanel Grid.Row="3" Grid.Column="0">
<CheckBox DockPanel.Dock="Left" HorizontalAlignment="Left" Margin="5" VerticalAlignment="Center" IsChecked="{Binding FillCopy}">Заполнять копию</CheckBox>
</DockPanel>
<DockPanel Grid.Row="4" Grid.Column="0">
<CheckBox DockPanel.Dock="Left" HorizontalAlignment="Left" Margin="5" VerticalAlignment="Center" IsChecked="{Binding FillHideCopy}">Заполнять скрытую копию</CheckBox>
</DockPanel>
<DockPanel Grid.Row="5" Grid.Column="0">
<CheckBox DockPanel.Dock="Left" HorizontalAlignment="Left" Margin="5" VerticalAlignment="Center" IsChecked="{Binding HighImportance}">Высокая важность</CheckBox>
</DockPanel>
<DockPanel Grid.Row="0" Grid.Column="1">
<TextBlock DockPanel.Dock="Left" VerticalAlignment="Center" Margin="10,5,2,5" Width="115" >Описание шаблона:</TextBlock>
<TextBox DockPanel.Dock="Left" Margin="2,2,5,2" TextWrapping="Wrap" VerticalContentAlignment="Center" Text="{Binding Description}"></TextBox>
</DockPanel>
<DockPanel Grid.Row="1" Grid.Column="1">
<TextBlock DockPanel.Dock="Left" VerticalAlignment="Center" Margin="10,5,2,5" Width="115">Тема письма:</TextBlock>
<TextBox DockPanel.Dock="Left" Margin="2,2,5,2" TextWrapping="Wrap" VerticalContentAlignment="Center" Text="{Binding Subject}"></TextBox>
</DockPanel>
<DockPanel Grid.Row="2" Grid.Column="1">
<TextBlock DockPanel.Dock="Left" VerticalAlignment="Center" Margin="10,5,2,5" Width="115">Адресаты:</TextBlock>
<TextBox DockPanel.Dock="Left" Margin="2,2,5,2" TextWrapping="Wrap" VerticalContentAlignment="Center" Text="{Binding TO}"></TextBox>
</DockPanel>
<DockPanel Grid.Row="3" Grid.Column="1">
<TextBlock DockPanel.Dock="Left" VerticalAlignment="Center" Margin="10,5,2,5" Width="115">Копия:</TextBlock>
<TextBox DockPanel.Dock="Left" Margin="2,2,5,2" TextWrapping="Wrap" VerticalContentAlignment="Center" Text="{Binding Copy}"></TextBox>
</DockPanel>
<DockPanel Grid.Row="4" Grid.Column="1">
<TextBlock DockPanel.Dock="Left" VerticalAlignment="Center" Margin="10,5,2,5" Width="115">Скрытая копия:</TextBlock>
<TextBox DockPanel.Dock="Left" Margin="2,2,5,2" TextWrapping="Wrap" VerticalContentAlignment="Center" Text="{Binding HideCopy}"></TextBox>
</DockPanel>
<DockPanel Grid.Row="5" Grid.Column="1">
<CheckBox DockPanel.Dock="Left" VerticalAlignment="Center" HorizontalAlignment="Center" Margin="5">Напоминание</CheckBox>
<TextBlock DockPanel.Dock="Left" VerticalAlignment="Center" Margin="4">Время напоминания:</TextBlock>
<TextBox DockPanel.Dock="Left" Margin="2,2,5,2" VerticalContentAlignment="Center"></TextBox>
</DockPanel>
<DockPanel Grid.Row="6" Grid.Column="1">
<CheckBox DockPanel.Dock="Left" VerticalAlignment="Center" HorizontalAlignment="Left" Margin="5">Заполнять текст письма</CheckBox>
</DockPanel>
<DockPanel Grid.Row="7" Grid.Column="0" Grid.ColumnSpan="2">
<Button DockPanel.Dock="Left" Margin="15" HorizontalAlignment="Left" VerticalAlignment="Center" Width="150" Height="40">Добавить новый шаблон</Button>
<Button DockPanel.Dock="Left" Margin="15" HorizontalAlignment="Left" VerticalAlignment="Center" Width="150" Height="40">Сохранить</Button>
<Button DockPanel.Dock="Left" Margin="15" HorizontalAlignment="Left" VerticalAlignment="Center" Width="150" Height="40">Отмена</Button>
<TextBlock DockPanel.Dock="Left" Margin="0,4,4,4" VerticalAlignment="Center">Заметка:</TextBlock>
<TextBox DockPanel.Dock="Right" Margin="5" TextWrapping="Wrap" AcceptsReturn="True" Height="70" HorizontalAlignment="Stretch" VerticalScrollBarVisibility="Visible"
SpellCheck.IsEnabled="True" Language="ru-ru"></TextBox>
</DockPanel>
</Grid>
</Grid>
</Window>
In viewmodel problems can not be. It is very easy, PropertyChanged called whenever necessary.
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using MugenMvvmToolkit;
using MugenMvvmToolkit.ViewModels;
using MugenMvvmToolkit.Models;
using System.Windows.Input;
using MHConfigurator.Models;
using System.Windows;
namespace MHConfigurator.ViewModels
{
class MainViewModel : ViewModelBase
{
public MainViewModel()
{
_mailProperties = new ObservableCollection<MailProperty>(DAL.GetDAL().MailPropertys);
//MailsTemplates = DAL.GetDAL().GetEmptyMailTemplates();
}
#region Fields
#region Backing Fields
private ObservableCollection<MailProperty> _mailProperties;
private MailProperty _currentProperty;
private string _searchString;
private MailProperty _originalCurrentProperty;
private bool _currentPropertyChanged = false;
private List<MailsTemplate> _mailsTemplates;
private int _selectedMailTemplate;
#endregion
public string SearchString
{
get
{
if (_searchString.IsNullOrEmpty()) return "";
return _searchString;
}
set
{
bool stringContains = _searchString != null && value.Contains(_searchString);
_searchString = value;
CurrentProperty = null;
//Not matter
}
}
public ObservableCollection<MailProperty> MailProperties
{
get { return _mailProperties; }
set
{
_mailProperties = value;
//OnPropertyChanged(new PropertyChangedEventArgs("MailProperties"));
OnPropertyChanged();
}
}
public MailProperty CurrentProperty
{
get { return _currentProperty; }
set
{/*
if ((_originalCurrentProperty != null)&&(_currentPropertyChanged)&&(_originalCurrentProperty!=_currentProperty)) //Если выбран другой объект и есть несохранённые изменения
{
MessageBoxResult result = MessageBox.Show("Есть несохранённые изменения. Сохранить?", "Несохранённые изменения", MessageBoxButton.YesNo, MessageBoxImage.Question);
if (result == MessageBoxResult.Yes)
{
}
else
{
MailProperties[MailProperties.IndexOf(_currentProperty)] = _originalCurrentProperty; //Находим в коллекции изменённый объект и заменить его оригиналом
}
}
_originalCurrentProperty = Helper.DeepClone(_currentProperty); //Делаем резервную копию
SelectedMailTemplate = value.BodyID; //выставляем id шаблона
*/
_currentProperty = value;
// OnPropertyChanged(new PropertyChangedEventArgs("CurrentProperty"));
OnPropertyChanged();
}
}
public List<MailsTemplate> MailsTemplates
{
get { return _mailsTemplates; }
set
{
_mailsTemplates = value;
OnPropertyChanged();
}
}
public int SelectedMailTemplate
{
get { return _selectedMailTemplate; }
set
{
_selectedMailTemplate = value;
CurrentProperty.BodyID = value;
OnPropertyChanged();
}
}
#endregion
#region Commands
public ICommand NewCommand { get; private set; }
public ICommand SaveCommand { get; private set; }
public ICommand CancelCommand { get; private set; }
#region Execute
#endregion
#region CanExecute
#endregion
#endregion
}}
I have no idea.
I will be glad to any ideas.
P.S.: Sorry for my bad english.

Select items from list and add them in a list?

Hi I am working on a networking application for which I am using C# WPF and MVVM pattern. This would be a fast configuration application so that user can configure a device from application. The problem of confusion is that I want want to take information about vlans and there could be multiple vlans a user can create. So I need to take multiple information from user at the same time and in the end I will configure all the values via telnet command. What would be the possible and simple way of taking multiple inputs from user and store it till end so that it could be configured correctly?
Suggestions would be greatly appreciable.
My code for VLANS ViewModel is:
public class VLANSViewModel : WizardPageViewModelBase
{
#region Fields
#endregion // end region fields
#region Constructor
public VLANSViewModel(ConfigurationLibrary configuration)
: base(configuration)
{
VlanIP1 = "192";
VlanIP2 = "168";
VlanIP3 = "1";
VlanIP4 = "1";
}
#endregion
#region Properties
public string VlanName
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanName;
}
set
{
if (String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanName, value))
{
return;
}
this.ConfigurationLibrary.ConfigLibraryVlanName = value;
this.OnPropertyChanged("VlanName");
}
}
public string VlanID
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanName;
}
set
{
if (String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanName, value))
{
return;
}
this.ConfigurationLibrary.ConfigLibraryVlanName = value;
this.OnPropertyChanged("VlanID");
}
}
public string VlanIP1
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanIp1;
}
set
{
if (!String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanIp1, value))
{
this.ConfigurationLibrary.ConfigLibraryVlanIp1 = value;
this.OnPropertyChanged("VlanIP1");
}
}
}
public string VlanIP2
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanIp2;
}
set
{
if (!String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanIp2, value))
{
this.ConfigurationLibrary.ConfigLibraryVlanIp2 = value;
this.OnPropertyChanged("VlanIP2");
}
}
}
public string VlanIP3
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanIp3;
}
set
{
if (!String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanIp3, value))
{
this.ConfigurationLibrary.ConfigLibraryVlanIp3 = value;
this.OnPropertyChanged("VlanIP3");
}
}
}
public string VlanIP4
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanIp4;
}
set
{
if (!String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanIp4, value))
{
this.ConfigurationLibrary.ConfigLibraryVlanIp4 = value;
this.OnPropertyChanged("VlanIP4");
}
}
}
public string VlanDefaultRoute1
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute1;
}
set
{
if (!String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute1, value))
{
this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute1 = value;
this.OnPropertyChanged("VlanDefaultRoute1");
}
}
}
public string VlanDefaultRoute2
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute2;
}
set
{
if (!String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute2, value))
{
this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute2 = value;
this.OnPropertyChanged("VlanDefaultRoute2");
}
}
}
public string VlanDefaultRoute3
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute3;
}
set
{
if (!String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute3, value))
{
this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute3= value;
this.OnPropertyChanged("VlanDefaultRoute3");
}
}
}
public string VlanDefaultRoute4
{
get
{
return this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute4;
}
set
{
if (!String.Equals(this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute4, value))
{
this.ConfigurationLibrary.ConfigLibraryVlanDefaultRoute4 = value;
this.OnPropertyChanged("VlanDefaultRoute4");
}
}
}
#endregion // end region fields
public override string DisplayName
{
get
{
return Strings.PageDisplayName_VLAN;
}
}
#region Methods
internal override bool IsValid()
{
return true;
}
#endregion
}
And my view for VLANS is :
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="150"/>
<ColumnDefinition Width="200"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<Label
Grid.Row="0"
Grid.Column="0"
VerticalAlignment="Center"
Content="VLAN NAME"
Foreground="Black"
Opacity="0.8"
/>
<ComboBox
Grid.Row="0"
Grid.Column="1"
Margin="0,5,0,0"
Height="25"
Foreground="Black"
Opacity="0.8"
Width="Auto"
Text="{Binding VlanName, UpdateSourceTrigger=PropertyChanged}"
/>
<Label
Grid.Row="1"
Grid.Column="0"
VerticalAlignment="Center"
Content="VLAN ID"
Foreground="Black"
Opacity="0.8"
/>
<TextBox
Grid.Row="1"
Grid.Column="1"
Margin="0,5,0,0"
Height="25"
Foreground="Black"
Opacity="0.8"
Width="Auto"
Text="{Binding VlanID, UpdateSourceTrigger=PropertyChanged}"
/>
<Label
Grid.Row="2"
Grid.Column="0"
VerticalAlignment="Center"
Content="IP FOR VLAN"
Foreground="Black"
Opacity="0.8"
/>
<Grid
Grid.Column="1"
Grid.Row="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="40"/>
</Grid.ColumnDefinitions>
<TextBox
Grid.Row="2"
Grid.Column="0"
Margin="5"
VerticalAlignment="Center"
MaxLength="3"
Width="30"
Foreground="Black"
Opacity="0.8"
Text="{Binding VlanIP1, UpdateSourceTrigger=PropertyChanged}"
/>
<TextBox
Grid.Row="2"
Grid.Column="1"
Margin="5"
VerticalAlignment="Center"
MaxLength="3"
Width="30"
Foreground="Black"
Opacity="0.8"
Text="{Binding VlanIP2, UpdateSourceTrigger=PropertyChanged}"
/>
<TextBox
Grid.Row="2"
Grid.Column="2"
Margin="5"
VerticalAlignment="Center"
MaxLength="3"
Width="30"
Foreground="Black"
Opacity="0.8"
Text="{Binding VlanIP3, UpdateSourceTrigger=PropertyChanged}"
/>
<TextBox
Grid.Row="2"
Grid.Column="3"
Margin="5"
VerticalAlignment="Center"
MaxLength="3"
Width="30"
Foreground="Black"
Opacity="0.8"
Text="{Binding VlanIP4, UpdateSourceTrigger=PropertyChanged}"
/>
</Grid>
<Label
Grid.Row="3"
Grid.Column="0"
VerticalAlignment="Center"
Content="DEFAULT ROUTE"
Foreground="Black"
Opacity="0.8"
/>
<Grid
Grid.Row="3"
Grid.Column="1">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="40"/>
<ColumnDefinition Width="40"/>
</Grid.ColumnDefinitions>
<TextBox
Grid.Row="2"
Grid.Column="0"
Margin="5"
VerticalAlignment="Center"
MaxLength="3"
Width="30"
Foreground="Black"
Opacity="0.8"
Text="{Binding VlanDefaultRoute1, UpdateSourceTrigger=PropertyChanged}"
/>
<TextBox
Grid.Row="2"
Grid.Column="1"
Margin="5"
VerticalAlignment="Center"
MaxLength="3"
Width="30"
Foreground="Black"
Opacity="0.8"
Text="{Binding VlanDefaultRoute2, UpdateSourceTrigger=PropertyChanged}"
/>
<TextBox
Grid.Row="2"
Grid.Column="2"
Margin="5"
VerticalAlignment="Center"
MaxLength="3"
Width="30"
Foreground="Black"
Opacity="0.8"
Text="{Binding VlanDefaultRoute3, UpdateSourceTrigger=PropertyChanged}"
/>
<TextBox
Grid.Row="2"
Grid.Column="3"
Margin="5"
VerticalAlignment="Center"
MaxLength="3"
Width="30"
Foreground="Black"
Opacity="0.8"
Text="{Binding VlanDefaultRoute4, UpdateSourceTrigger=PropertyChanged}"
/>
</Grid>
</Grid>
</UserControl>
I want to save multiple values for VLANS values at one time. Now any suggestions?

I think you are looking for a good introduction to get from scratch to an MVVM application that can handle models correctly. In that case I recommend to use a "getting started with MVVM" guid such as this one in Catel.

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