Debug Data Bindings Using an Empty IValueConverter : IValueConverter « Windows Presentation Foundation « VB.Net






Debug Data Bindings Using an Empty IValueConverter

Debug Data Bindings Using an Empty IValueConverter
     

<Window x:Class="WpfApplication1.Window1"
  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:local="clr-namespace:WpfApplication1" Title="Debug Data Bindings Using an IValueConverter"  Width="200"  Height="200">
  <Window.Resources>
    <local:DummyConverter x:Key="DummyConverter" />
  </Window.Resources>
  <Grid>
    <Grid.RowDefinitions>
      <RowDefinition Height="0.5*" />
      <RowDefinition Height="0.5*"/>
    </Grid.RowDefinitions>
    <CheckBox x:Name="chkShouldItBeOpen" IsChecked="False" Content="Open" Margin="10"/>
    <Expander IsExpanded="{Binding ElementName=chkShouldItBeOpen, Path=IsChecked,Converter={StaticResource DummyConverter}}"
      Grid.Row="1" Background="Black"  Foreground="White" Margin="10" VerticalAlignment="Center" 
      HorizontalAlignment="Center" Header="Expander!">
      <TextBlock Text="Open!" Foreground="White"/>
    </Expander>
  </Grid>
</Window>

//File:Window.xaml.vb
Imports System.Windows
Imports System
Imports System.Globalization
Imports System.Windows.Data
Namespace WpfApplication1
  Public Partial Class Window1
    Inherits Window
    Public Sub New()
      InitializeComponent()
    End Sub
  End Class

  Public Class DummyConverter
    Implements IValueConverter
    Public Function Convert(value As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IValueConverter.Convert
      Return value
    End Function

    Public Function ConvertBack(value As Object, targetType As Type, parameter As Object, culture As CultureInfo) As Object Implements IValueConverter.ConvertBack
      Return value
    End Function
  End Class
End Namespace

   
    
    
    
    
  








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