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How to change TextBlock Text Binding in C#

I'm working in huge application and I have one small problem
My Application has two languages (Arabic / English).
I have ComboBox And I would like to change the display content according to the language.
This is my ComboBox XAML:
<ComboBox x:Name="cmbCustomerGroup" Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="5"
Margin="2" SelectedValuePath="CustomerGroupId" Validation.Error="Validation_Error"
SelectedValue="{Binding Path=CustomerGroupId, ValidatesOnDataErrors=True, UpdateSourceTrigger=PropertyChanged, NotifyOnValidationError=True}">
<!--<ComboBox.ItemTemplate>
<DataTemplate>
<TextBlock Text="{Binding}"/>
</DataTemplate>
</ComboBox.ItemTemplate>-->
</ComboBox>
This is my method:
private void FillCustomerGroups()
{
var oClsCustomers = new ClsCustomerGroups();
var lstCustGrps = oClsCustomers.GetData();
cmbCustomerGroup.ItemsSource = lstCustGrps.ToList<TbCustomerGroups>();
cmbCustomerGroup.DisplayMemberPath = Helper.CurrLang == Helper.SystemLanguage.Arabic ? "CustomerGroupAName" : "CustomerGroupEName";
cmbCustomerGroup.SelectedValuePath = "CustomerGroupId";
}
I got this result:
This is my database:

This usually occurs when DisplayMemberPath is set wrong, or bindable property is not a string and has no overriden ToString() method.
Try add new property to your TbCustomerGroups, for example CurrentGroupName like this
public string CurrentGroupName => Helper.CurrLang == Helper.SystemLanguage.Arabic ? CustomerGroupAName : CustomerGroupEName;
Then set cmbCustomerGroup.DisplayMemberPath = "CurrentGroupName"
Also check that CustomerGroupAName and CustomerGroupEName are strings or have ToString() method
UPDATE
Also don't use <ComboBox.ItemTemplate> if you use DisplayMemberPath

Multi level data Binding in Windows Phone 8

I am a beginner in Windows phone programming.
I want to bind the data from API to my XAML elements using that Binding Attributes. Please let me know how can we bind multilevel classes objects in it.
Here's my scenario.
List<Sample> SearchResult = new List<Sample>()
{
new Sample(){
Name="ABC",
modelProperty = new SampleDetail(){
articleNo="1", videoURL = "https://www.youtube.com/watch?v=abc",
colors = new List<ColorsDemo>(){
new ColorsDemo {
Name = "Red",
colorProperty= new ColorDemoProperty{ name = "ABC",article_no = "Art1",
image = new Uri("http://img.youtube.com/vi/e60E99tUdxs/default.jpg",UriKind.RelativeOrAbsolute)
}
}
}
}
}
And now, I want to bind the Name of ColorsDemo class into my textblock. See what I have done to bind in XAML like this:
<TextBlock x:Name="PName" Grid.Row="0" Margin="100,0,0,0" Tap="ProductName_Tap" HorizontalAlignment="Center" VerticalAlignment="Center" Width="350" TextWrapping="Wrap" Foreground="Black" Text="{Binding Path=modelProperty.colors.Name}" FontSize="30"></TextBlock>

From your code, i see that colors is a List of ColorDemo objects. So when you say {Binding Path=modelProperty.colors.Name}it does not tell which list item to bind to. The correct usage should be {Binding Path=modelProperty.colors[0].Name}. This tells the control to bind to the name of the first color item (as index is 0).
To bind all the colors. You should use a Listview and bind the colors in it. So you should be able to do something like this.
<ListView ItemSource={Binding Path=modelProperty.colors}>
<ListView.ItemTemplate>
<TextBlock x:Name="PName" Grid.Row="0" Margin="100,0,0,0" Tap="ProductName_Tap" HorizontalAlignment="Center" VerticalAlignment="Center" Width="350" TextWrapping="Wrap" Foreground="Black" Text="{Binding Path=Name}" FontSize="30"></TextBlock>
</ListView.ItemTemplate>
</ListView>

show/hide control textbox based on combobox selected WPF

I have a WPF/MVVM project in C #/FrameWork 4.0
In my view I have two ControlBox "NoRSAC" and "LieuRSAC"
<View:StateControlTextBox
x:Name="NoRSAC"
ReadOnly="{Binding IsReadOnly}"
ViewModelDataType="UtilisateurSaisieViewModel"
TableDataType="TUtilisateurDataTable"
Tag="{DynamicResource TELEPHONE}"
Text="{Binding UserVM.No_RSAC, Mode=TwoWay}" Margin="0" Canvas.Top="140" Width="185" VerticalAlignment="Stretch" />
<View:StateControlTextBox
x:Name="LieuRSAC"
ReadOnly="{Binding IsReadOnly}"
ViewModelDataType="UtilisateurSaisieViewModel"
TableDataType="TUtilisateurDataTable"
Tag="{DynamicResource TELEPHONE}"
Text="{Binding UserVM.Lieu_RSAC, Mode=TwoWay}" Margin="0" Canvas.Top="140" Width="185" VerticalAlignment="Stretch"/>
</Canvas>
And ControlComboBox "cmbFonction"
<View:StateControlComboBox
x:Name="cmbFonction"
ReadOnlyControlState="Disabled"
IsReadOnly="{Binding IsReadOnly}"
ViewModelDataType="UtilisateurSaisieViewModel"
TableDataType="TUtilisateurDataTable"
ItemsSource="{Binding ListeFonctions}"
SelectedValue="{Binding UserVM.Fonction, Mode=TwoWay}" Width="303" Margin="0" HorizontalAlignment="Left" Canvas.Left="97" Canvas.Top="108" />
I want to view the ControlBox "NoRSAC" and "LieuRSAC" when I select a particular valeure in the ComboBox "cmbFonction" and hide when it's another selected value
Thank you for your help

In the set method of the property Fonction, you can check the value and update another property that you should introduce in your view model and that is of type System.Windows.Visibility. In the following example, I call this property TextBoxVisibility:
public class UserVM : INotifyPropertyChanged
{
private Visibility _textBoxVisibility;
public Visibility TextBoxVisibility
{
get { return _textBoxVisibility; }
set
{
_textBoxVisibility = value;
OnPropertyChanged();
}
}
public string Fonction
{
get { return _fonction; }
set
{
_fonction = value;
OnPropertyChanged();
if (value == "Value A")
TextBoxVisibility = Visibility.Hidden;
else
TextBoxVisibility = Visibility.Visible;
}
}
// Other members omitted for sake of simplicity.
}
Please note that you need to implement INotifyPropertyChanged (directly or indirectly) so that the changes of the property values are forwarded to the bindings that can in turn update the dependency properties of the controls in your view.
Thus you must not forget to add an additional binding to all of your text boxes in your view. Here is an example for that, the important part is the binding on Visibility:
<View:StateControlTextBox
x:Name="NoRSAC"
ReadOnly="{Binding IsReadOnly}"
ViewModelDataType="UtilisateurSaisieViewModel"
TableDataType="TUtilisateurDataTable"
Tag="{DynamicResource TELEPHONE}"
Visibility="{Binding UserVM.TextBoxVisibility}"
Text="{Binding UserVM.No_RSAC, Mode=TwoWay}" Margin="0" Canvas.Top="140" Width="185" VerticalAlignment="Stretch" />

wpf c# static combobox selection needs to update second combobox that makes a DB call

I'm new to WPF, using DevExpress MVVM, I have a static combobox that when the user selects a day, I want to update the second combobox by passing an int day and making a DB call to refresh that combo box with routes based off that day. Here's what I have:
-->
<Label Content="Route:" Grid.Column="2" Grid.Row="1" Height="28" HorizontalAlignment="Left" Margin="9,60,0,0" Name="lblRoute" VerticalAlignment="Top" />
<ComboBox Grid.Column="2" Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="127,65,0,0" Name="cboRoute" VerticalAlignment="Top" Width="120"
DataContext="{Binding}" ItemsSource="{Binding Path=RouteList}" DisplayMemberPath="{Binding RouteName}" SelectedValue="{Binding RouteID}" Grid.ColumnSpan="2"
IsSynchronizedWithCurrentItem="true"/>
ViewModel:
public ObservableCollection<RouteTest> BindRouteComboBox2(int day)
{
mgr = new SRMSRailManagerBLL();
mgr.OpenConnection(ConfigurationManager.ConnectionStrings["SRMSSqlProvider"].ConnectionString);
//might not want to pass dataset
_routeDS = mgr.getRoutesForCombo(day);
_routeDV = _routeDS.Tables[0].DefaultView;
//cboRoute.ItemsSource = ds.Tables[0].DefaultView;
//cboRoute.DisplayMemberPath = ds.Tables[0].Columns["RouteName"].ToString();
//cboRoute.SelectedValuePath = ds.Tables[0].Columns["RouteID"].ToString();
_routeList = new ObservableCollection<RouteTest>();
foreach (DataRow row in _routeDV.Table.Rows)
{
RouteTest r = new RouteTest(Convert.ToInt32(row.ItemArray[0]), row.ItemArray[1].ToString());
_routeList.Add(r);
}
mgr.CloseConnection();
return _routeList;
When I click my first combobox, I get the 'Monday' populated in my _SelectionChanged(), what I want is the Tag value of '1', so that I can pass to my BindRouteComboBox(day) procedure to update the second combo box to only show routes for day 1, instead of every route in my DB table. This should be simple and I've gotta be missing something simple here.
Thanks,

Hi use SelectedValue instead of SelectedValuePath
string temp = (sender as ComboBox).SelectedValue.ToString();

WPF: Update Listbox automatically C#

I have two WPF windows developed using the surface SDK, one that is a data entry form, and the second dispays the data in a listbox. The listbox displays the data perfectly but when I add a new record using the data entry form, the listbox is not updated until I reopen the window. Is there a way to automatically update the listbox through binding or something?
This is the listbox code:
<s:SurfaceListBox Height="673" Margin="0,26,0,31" Name="surfaceListBox1" ItemsSource="{Binding Path={}}" Width="490">
<s:SurfaceListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Label Width="80" FontSize="8" Content="{Binding Path=item1}"></Label>
<Label Width="80" FontSize="8" Content="{Binding Path=item2}"></Label>
<Label Width="210" FontSize="8" Content="{Binding Path=item3}"></Label>
<Label Width="80" FontSize="8" Content="{Binding Path=item4}"></Label>
<Label Width="60" FontSize="8" Content="{Binding Path=item5, Converter={StaticResource booleanconverter}}"></Label>
</StackPanel>
</DataTemplate>
</s:SurfaceListBox.ItemTemplate>
</s:SurfaceListBox>
I am using Visual C# 2008 and the code to fill the listbox is:
private SHIPS_LOGDataSet ShipData = new SHIPS_LOGDataSet();
private SHIPS_LOGDataSetTableAdapters.MAINTableAdapter taMain = new SHIPS_LOGDataSetTableAdapters.MAINTableAdapter();
private SHIPS_LOGDataSetTableAdapters.TableAdapterManager taManager = new ShipsLogSurface.SHIPS_LOGDataSetTableAdapters.TableAdapterManager();
private void SurfaceWindow_Loaded(object sender, RoutedEventArgs e)
{
this.taMain.Fill(this.ShipData.MAIN);
this.DataContext = from MAIN in this.ShipData.MAIN orderby MAIN.MESSAGE_ID descending select MAIN;
}
The only table in my database is called MAIN.
I'm guessing I might have to use a collection view or similar but don't know how to implement that. Any ideas would be much appreciated. Thanks

INotifyPropertyChanged is an interface which you should implement in your data class (ShipData?). The properties in your data class should look as follows:
private string _myField;
public string MyField {
get { return _myField; }
set { _myField = value; onPropertyChanged(this, "MyField"); }
}
So whenever something in your data class changes (i.e. add/delete/update), it will fire the OnPropertyChanged event.
Your List or ObservableCollection that you use to populate the list listens to this OnPropertyChanged event and will update itself whenever the event is fired.

Try to do it with INotifyPropertyChanged.

surfaceListBox1.Items.Refresh();