Bind Slider value to TextBlock

   
    



<Window  
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    x:Class="SDKSample.Pane1">

    <StackPanel>
      <TextBlock Margin="0,10,0,0"  Foreground="Blue">
      <TextBlock Text="(Height,Width) = "/>
      <TextBlock Text="{Binding ElementName=RectangleHeight,Path=Value}"/>
      ,
      <TextBlock Text="{Binding ElementName=RectangleWidth,Path=Value}"/>
    </TextBlock>

    <TextBlock Margin="10,10,0,0">Height</TextBlock>
    <Slider Name="RectangleHeight"  Margin="10, 0, 0, 0" 
      Width="100" Orientation="Horizontal" HorizontalAlignment="Left" 
      Value="50" Minimum="0" Maximum="200" 
      SmallChange="1" LargeChange="10"
      TickPlacement="BottomRight" TickFrequency="10"/>
    <TextBlock Margin="10,0,0,0">Width</TextBlock>
    <Slider Name="RectangleWidth" Margin="10, 0, 0, 0" 
      Width="100" Orientation="Horizontal" HorizontalAlignment="Left" 
      Value="50" Minimum="0" Maximum="200"
      SmallChange="1" LargeChange="10"
      TickPlacement="BottomRight" TickFrequency="10"/>
        <Rectangle Fill="Blue" HorizontalAlignment="Left" 
               Margin="50,20,0,0" 
               Height="{Binding ElementName=RectangleHeight,Path=Value}" 
               Width="{Binding ElementName=RectangleWidth,Path=Value}"/>
    </StackPanel>

</Window>