Tutorial :Silverlight 4 RelativeSource FindAncestor binding [closed]



Question:

Will there be RelativeSource FindAncestor, AncestorType... in Silverlight 4?


Solution:1

In Silverlight 4 the RelativeSource property of Binding still only supports "Self" and "TemplatedParent", there is no change from Silverlight 3 in this area.


Solution:2

RelativeSource AncestorType is supported in Silverlight 5, which is available now.

<TextBlock Text="{Binding Name}"              FontSize="{Binding DataContext.CustomFontSize,                  RelativeSource={RelativeSource AncestorType=UserControl}}"  />  


Solution:3

Perhaps you could instantiate the ViewModel in the XMAL as a static resource then reference that as the source in your binding.

<UserControl.Resources>      <vm:MainPageViewModel x:Key="ViewModel"/>  </UserControl.Resources>    <Grid x:Name="LayoutRoot" Background="White" DataContext="{Binding Source={StaticResource ViewModel}}">      <ListBox ItemsSource="{Binding Partitions}">          <ListBox.ItemsPanel>              <ItemsPanelTemplate>                  <toolkit:WrapPanel FlowDirection="LeftToRight"  />              </ItemsPanelTemplate>          </ListBox.ItemsPanel>          <ListBox.ItemTemplate>              <DataTemplate>                  <Button Margin="10,0" Width="40" Content="{Binding}" Command="{Binding Source={StaticResource ViewModel}, Path=ButtonCommand}" CommandParameter="{Binding}"/>              </DataTemplate>          </ListBox.ItemTemplate>      </ListBox>    </Grid>  


Solution:4

This may help:

http://blog.thekieners.com/2010/09/08/relativesource-binding-with-findancestor-mode-in-silverlight/


Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
Previous
Next Post »