I am new to WPF and working on dynamic view creation. I have a scenario where i need to modify my UI based on monitor landscape and/or portrait, like
I already have property which tells me that monitor is in landscape or portrait mode.
Is this possible in WPF?
This is possible. You would create a view that implements both layouts and switches between them using a DataTrigger:
<ContentControl>
<ContentControl.Style>
<Style TargetType="ContentControl">
<Setter Property="Content">
<Setter.Value>
<!-- Put your portrait layout here -->
</Setter.Value>
</Setter>
<Style.Triggers>
<DataTrigger Binding="{Binding IsLandscape}" Value="True">
<Setter Property="Content">
<Setter.Value>
<!-- Put your landscape layout here -->
</Setter.Value>
</Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</ContentControl.Style>
</ContentControl>
Using the {Binding IsLandscape} expression, the DataTrigger observes the IsLandscape property of the view's DataContext. This is explained in detail on MSDN. This means that you should set the view's DataContext property to the object that has the IsLandscape property that you've mentioned in your question. Full example:
Create new empty WPF project.
Update your MainWindow.xaml.cs:
public MainWindow()
{
this.InitializeComponent();
this.DataContext = this; // You would put a ViewModel here when using MVVM design pattern
}
public static readonly DependencyProperty IsLandscapeProperty
= DependencyProperty.Register("IsLandscape",
typeof (bool),
typeof (MainWindow));
public bool IsLandscape
{
get { return (bool) GetValue(IsLandscapeProperty); }
set { SetValue(IsLandscapeProperty, value); }
}
private void ChangeOrientation(object sender, RoutedEventArgs e)
{
this.IsLandscape = !this.IsLandscape;
}
Update your MainWindow.xaml. Delete the default Grid and put this instead:
<Window.Resources>
<Style TargetType="UserControl">
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="Background" Value="#CCDDEE" />
<Setter Property="Margin" Value="3" />
</Style>
</Window.Resources>
<DockPanel>
<Button DockPanel.Dock="Bottom" Margin="5" Content="Change Orientation"
Click="ChangeOrientation" />
<ContentControl>
<ContentControl.Style>
<Style TargetType="ContentControl">
<Setter Property="Content">
<Setter.Value>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<UserControl Content="Sub 1" />
<UserControl Grid.Column="1" Content="Sub 2" />
<UserControl Grid.Row="1" Grid.ColumnSpan="2" Content="Main" />
</Grid>
</Setter.Value>
</Setter>
<Style.Triggers>
<DataTrigger Binding="{Binding IsLandscape}" Value="True">
<Setter Property="Content">
<Setter.Value>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<UserControl Grid.Column="1" Content="Sub 1" />
<UserControl Grid.Column="1" Grid.Row="1" Content="Sub 2" />
<UserControl Grid.RowSpan="2" Content="Main" />
</Grid>
</Setter.Value>
</Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</ContentControl.Style>
</ContentControl>
</DockPanel>
Yes, you can implement both of this UI and use VisualStateManager to control which UI to display.
Also you can bind visibility of layout container to your property using converter
Related
I try to bind a simple bool to a checkbox and a datatrigger in a controltemplate, but nothing is working. The checkbox is only for test purpose. I already went through the posts here, but most problems are caused by setting a property directly and not in the style, thus overwriting it. The datatrigger using the mouseover property is working just fine. Its only the binding to the bool which doesn't work.
My Code so far:
cs:
public partial class HostFrame : UserControl
{
public bool test { get; set; }
public HostFrame()
{
test = true;
InitializeComponent();
}
}
Xaml:
<UserControl x:Class="OwnDrawingv2.Elements.HostFrame"
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:OwnDrawingv2.Elements"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300">
<UserControl.Resources>
<Style TargetType="{x:Type local:HostFrame}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:HostFrame}">
<Grid Background="LightBlue" Name="host_grid">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
<ColumnDefinition Width="Auto"></ColumnDefinition>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="20"></RowDefinition>
<RowDefinition Height="Auto"></RowDefinition>
</Grid.RowDefinitions>
<ContentPresenter Name="content" Grid.Row="1" Grid.Column="1" />
<CheckBox Grid.Column="0" Grid.Row="0" IsChecked="{Binding Path=test}"> <!--Test prupose-->
</CheckBox>
<Image Grid.Column="1" Grid.Row="0" Name="attention" Width="30" Height="30" Source="/attention_icon.png">
<Image.Style>
<Style TargetType="Image">
<Setter Property="Visibility" Value="Visible"></Setter>
<Style.Triggers>
<DataTrigger Binding="{Binding Path=test}" Value="true">
<Setter Property="Visibility" Value="Hidden"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
<Ellipse Grid.Column="0" Grid.Row="1" Width="10" Height="10" Fill="Black">
<Ellipse.Style>
<Style TargetType="Ellipse">
<Setter Property="Visibility" Value="Hidden"></Setter>
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=content, Path=IsMouseOver}" Value="true">
<Setter Property="Visibility" Value="Visible"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</Ellipse.Style>
</Ellipse>
<Ellipse Grid.Column="2" Grid.Row="1" Width="10" Height="10" Fill="Black">
<Ellipse.Style>
<Style TargetType="Ellipse">
<Setter Property="Visibility" Value="Hidden"></Setter>
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=content, Path=IsMouseOver}" Value="true">
<Setter Property="Visibility" Value="Visible"></Setter>
</DataTrigger>
</Style.Triggers>
</Style>
</Ellipse.Style>
</Ellipse>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</UserControl.Resources>
</UserControl>
UPDATE: I got an answer for my original question and I understand this. But why are there tutorials in the web, which seem to work without the relativesource?
UPDATE2: I missed one answers information about Datacontext, thank you. The problem is solved.
You have not set a Datacontext for your UserControl therefore i assume it will be null. You should see the binding error in your output.
On the other hand, your property test doesnt't notify changes. You should declare it as a dependency property if it belongs to the UserControl (instead of being part of the ViewModel)
if you do the following IsChecked="{Binding Path=test}" that means your UserControl class is the DataContext of it self (or you didn't say that).
So you have 2 solutions (I guess)
1- Move your Test property to your ViewModel and do your Binding.
2- Use RelativeResource and FindAncestor method ({Binding Path=PathToProperty, RelativeSource={RelativeSource AncestorType={x:Type typeOfAncestor}}})
PS: IF your HostFrame inherits from Control,UIELement..., It would be better to define a DependencyProperty and do a TemplateBinding
I have a LabeledTextBox in my WPF app that's as simple as can be:
<Grid x:Name="root">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0"
Text="{Binding Label}"
FontWeight="Bold"
VerticalAlignment="Bottom"
Margin="5,2,5,0"/>
<TextBox Grid.Row="1"
Text="{Binding Text}"
VerticalAlignment="Top"
Margin="5,0,5,2"/>
</Grid>
I bind all my models to that guy to display. I've successfully implemented IDataErrorInfo, and can style the LabeledTextBox like:
<Style TargetType="controls:LabeledTextBox">
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="BorderBrush" Value="Red"/>
<Setter Property="BorderThickness" Value="5"/>
</Trigger>
</Style.Triggers>
</Style>
This all works, and the entire control is bordered in red (obviously). What's I'd like is to just manipulate the TextBox within the LabeledTextBox, my end goal being to change the background to a pastel red color.
How can I access my TextBox from within the trigger, when the trigger is set on the entire LabeledTextbox?
I imagine this is a seemingly simple task, I just can't get the syntax right. I'm working in a .NET4.0 environment, if that is relevant.
Thanks!
Hi I dont think we can access elements through styles but yes we can refer through ControlTemplate.Triggers and specifying the TargetName Property in Setter.
<Style TargetType="{x:Type wpfApplication4:LabelledTextBox}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type wpfApplication4:LabelledTextBox}">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<TextBlock
Grid.Row="0"
Margin="5,2,5,0"
VerticalAlignment="Bottom"
FontWeight="Bold"
Text="ergergergegr" />
<TextBox
x:Name="MyTextBox"
Grid.Row="1"
Margin="5,0,5,2"
VerticalAlignment="Top"
Text="gtwererggerg" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="true">
<Setter TargetName="MyTextBox" Property="BorderBrush" Value="Red"/>
<Setter TargetName="MyTextBox" Property="BorderThickness" Value="5"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Add a dependency property to your user control.
Bind Your TextBlock Background property to that dependency property.
Change that property in the trigger.
I have two user controls(A & B) placed on a particular user control(C). I want these control to come up or show only when button is clicked. I bound the visibility of A and B controls to properties but of no use. I applied styles also to hide/show but again no success.
Also I want usercontrol C to be stretched if in case both A and B controls are not visible.
Here is the usercontrol xaml where main datacontext is RunViewModelObject
<UserControl>
<UserControl.Resources>
<Style TargetType="{x:Type Control}" x:Key="RTMLOVPanel">
<Setter Property="Visibility" Value="Hidden" />
<Style.Triggers>
<DataTrigger Binding="{Binding LovPaneVisible, ElementName=RtmLovView, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" Value="true">
<Setter Property="Visibility" Value="Visible" />
</DataTrigger>
</Style.Triggers>
</Style>
<Style TargetType="{x:Type Control}" x:Key="AttachmentPanel">
<Setter Property="Visibility" Value="Hidden" />
<Style.Triggers>
<DataTrigger Binding="{Binding AttachmentsPaneVisible, ElementName=AttachmentsView, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" Value="true">
<Setter Property="Visibility" Value="Visible" />
</DataTrigger>
</Style.Triggers>
</Style>
<ControlTemplate x:Key="RtmLovTemplate" x:Name="RtmLovView">
<Shared:SidePaneView_RtmLov/>
</ControlTemplate>
<ControlTemplate x:Key="AttachmentsTemplate" x:Name="AttachmentsView">
<Shared:SidePaneView_Attachments/>
</ControlTemplate>
</UserControl.Resources>
<Grid DataContext="{Binding RunViewModelObject}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<ContentControl Grid.Column="0" Template="{StaticResource ResourceKey=RtmLovTemplate}"
DataContext="{Binding LovObject}" Style="{DynamicResource RTMLOVPanel}" />
<ContentControl Grid.Column="0" Template="{StaticResource ResourceKey=AttachmentsTemplate}"
DataContext="{Binding AttachmentsObject}" Style="{DynamicResource AttachmentPanel}" />
<Grid Grid.Column="1" >
<ContentControl x:Name="CCRunView" Loaded="UserControl_Loaded" Unloaded="UserControl_Unloaded" >
<ContentControl.Content>
<UC:UCDynamicRunForm Visibility="{Binding DataSourceControlVisibility, Converter={StaticResource ResourceKey=BoolToOppositeVisibilityConverter}}" DataContext="{Binding UCDynamicFormVMObject}"/>
</ContentControl.Content>
</ContentControl>
</Grid>
</Grid>
</UserControl>
Im using a SfDataGrid data grid control in a Windows Store app project, im able to apply my costum styles to the diferent rows, but there is one row in particular that i want to have a diferent style.
this is what i have so far.
<Page.Resources>
<Style x:Key="customCellStyle" TargetType="syncfusion:GridCell">
<Setter Property="BorderBrush" Value="#FF7fd0de" />
<Setter Property="BorderThickness" Value="1,0,0,1" />
<Setter Property="Padding" Value="0,0,0,0" />
<Setter Property="FontFamily" Value=" Segoe UI" />
<Setter Property="Foreground" Value="#FF2A2A2A" />
<Setter Property="FontSize" Value="14" />
<!--<Setter Property="Height" Value="59" />-->
</Style>
<Style x:Key="rowStyle" TargetType="syncfusion:VirtualizingCellsControl">
<Setter Property="Background" Value="WhiteSmoke" />
</Style>
<Style x:Key="altRowStyle" TargetType="syncfusion:VirtualizingCellsControl">
<Setter Property="Background" Value="White" />
</Style>
</Page.Resources>
<Grid x:Name="rootGrid" Style="{StaticResource RootGridStyle}" Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
<Grid.RowDefinitions>
<RowDefinition Height="140"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<syncfusion:SfDataGrid Grid.Row="1" x:Name="datagrid" Width="1366"
AllowResizingColumns="True"
AutoGenerateColumns="True"
CellStyle="{StaticResource customCellStyle}"
ColumnSizer="Star"
RowHeight="65"
AlternatingRowStyle="{StaticResource altRowStyle}"
RowStyle="{StaticResource rowStyle}" />
<ProgressRing Grid.Row="1" IsActive="{Binding IsLoading}" />
<Button x:Name="backButton" Click="GoBack" IsEnabled="{Binding Frame.CanGoBack, ElementName=pageRoot}" Style="{StaticResource BackButtonReverseStyle}"/>
</Grid>
How can i apply a specific style to one of the rows, lets say row 3.
By using RowStyleSelector, you can apply the style for particular row.
Refer this link :
http://help.syncfusion.com/wpf/sfdatagrid/conditional-styling#rows
public class CustomRowStyleSelector : StyleSelector
{
protected override Style SelectStyleCore(object item, Windows.UI.Xaml.DependencyObject container)
{
var row = item as DataRowBase;
if (row.RowIndex == 3)
return App.Current.Resources["rowStyle"] as Style;
return base.SelectStyleCore(item, container);
}
}
<syncfusion:SfDataGrid x:Name="sfdatagrid" Grid.Row="0"
AutoGenerateColumns="True"
ItemsSource="{Binding Path=Products}"
RowStyleSelector="{StaticResource rowStyleSelector}"/>
Just wondering is their any examples or elements which can look very similar to the Properties panel used in Visual Studio? My guess the one in Visual Studio 2010 is built upon WPF, almost definitely a treeview?
Mindscape has a free one.
There is one on CodeProject.
Actipro develops a very nice one.
As does ComponentOne.
If you want to use some simple XAML, the following is visually identical to the WinForms PropertyGrid but is much easier to work with:
<Style x:Key="InnerBorder" TargetType="{x:Type Border}">
<Setter Property="BorderThickness" Value="1" />
<Setter Property="Margin" Value="4" />
<Setter Property="BorderBrush" Value="#B4B0A8" />
</Style>
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<!-- Main property grid area -->
<Border Style="{StaticResource InnerBorder}">
<ListBox
ItemsSource="{Binding Parameters}"
IsSynchronizedWithCurrentItem="True"
KeyboardNavigation.TabNavigation="Continue"
HorizontalContentAlignment="Stretch" BorderThickness="0">
<!-- Category grouping rows -->
<ListBox.GroupStyle>
<GroupStyle>
<GroupStyle.HeaderTemplate>
<DataTemplate>
<TextBlock Text="{Binding Name}" Background="#D4D0C8" FontWeight="Bold" Padding="2 2 0 4" Margin="0 0 0 3"/>
</DataTemplate>
</GroupStyle.HeaderTemplate>
<GroupStyle.ContainerStyle>
<Style>
<Setter Property="Control.Margin" Value="0 0 0 8" />
</Style>
</GroupStyle.ContainerStyle>
</GroupStyle>
</ListBox.GroupStyle>
<!-- Item container style -->
<ListBox.ItemContainerStyle>
<Style TargetType="ListBoxItem">
<Setter Property="Focusable" Value="False" />
<Setter Property="TabIndex" Value="0" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ListBoxItem}">
<DockPanel Margin="4 0 0 0" IsKeyboardFocusWithinChanged="DockPanel_IsKeyboardFocusWithinChanged" MouseDown="DockPanel_MouseDown">
<TextBlock Name="TitleBlock" Text="{Binding DisplayName}" Width="135" />
<ContentPresenter />
</DockPanel>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="true">
<Setter TargetName="TitleBlock" Property="Background" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}" />
<Setter TargetName="TitleBlock" Property="Foreground" Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ListBox.ItemContainerStyle>
</ListBox>
</Border>
<!-- Help area -->
<Border Style="{StaticResource InnerBorder}" Grid.Row="1" DataContext="{Binding Parameters}">
<StackPanel HorizontalAlignment="Stretch" Margin="2">
<TextBlock FontWeight="Bold" Text="{Binding /DisplayName}" />
<TextBlock Text="{Binding /Description}" TextWrapping="Wrap" />
</StackPanel>
</Border>
</Grid>
And here is the code behind
private void DockPanel_IsKeyboardFocusWithinChanged(object sender, DependencyPropertyChangedEventArgs e)
{
var element = (FrameworkElement)sender;
if(element.IsKeyboardFocusWithin)
{
Visual cur = element;
while(cur!=null && !(cur is ListBoxItem))
cur = (Visual)VisualTreeHelper.GetParent(cur);
((ListBoxItem)cur).IsSelected = true;
}
}
private void DockPanel_MouseDown(object sender, MouseEventArgs e)
{
((FrameworkElement)sender).MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}
private void InitializeView()
{
var view = CollectionViewSource.GetDefaultView(Parameters);
if(view.GroupDescriptions.Count==0)
view.GroupDescriptions.Add(new PropertyGroupDescription("Category"));
if(view.SortDescriptions.Count==0)
{
view.SortDescriptions.Add(new SortDescription("Category", ListSortDirection.Ascending));
view.SortDescriptions.Add(new SortDescription("DisplayName", ListSortDirection.Ascending));
}
}
The reason this property grid is nicer to work with in WPF is that you can add any kind of object to the Parameters collection as long as it has a Category, DisplayName, and Description.
If you want to use it to actually display the properties of a specific object, it only takes a few lines to load up the Parameters collection with the appropriate objects.