Trouble using CollectionViewSource in Silverlight
- by Johnny
Hi, I having some trouble when implementing the CollectionViewSource in silverlight. I'm new in this topic, so basically I've been following what I find searching through the web. Here's what I've been trying to do so far.
I'm creating a CollectionViewSource in the resources tag:
<UserControl.Resources>
<CollectionViewSource x:Key="TestCVS">
<CollectionViewSource.SortDescriptions>
<scm:SortDescription PropertyName="Value" Direction="Ascending" />
</CollectionViewSource.SortDescriptions>
</CollectionViewSource>
</UserControl.Resources>
Then I'm binding my TestCVS in a HierarchicalDataTemplate:
<common:HierarchicalDataTemplate ItemsSource="{Binding Source={StaticResource TestCVS}}">
<common:HierarchicalDataTemplate.ItemTemplate>
<common:HierarchicalDataTemplate>
<Border BorderBrush="#FF464646" BorderThickness="1" CornerRadius="3" Padding="5">
<Grid>
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
</Grid.ColumnDefinitions>
<StackPanel Orientation="Horizontal" HorizontalAlignment="Left">
<TextBlock TextWrapping="Wrap" Text="{Binding MyClassField}"/>
</StackPanel>
</Grid>
</Border>
</common:HierarchicalDataTemplate>
</common:HierarchicalDataTemplate.ItemTemplate>
</common:HierarchicalDataTemplate>
Now, in the code behind I'm assigning the Source for the TestCVS in a property, like this:
private ObservableCollection<MyClass> _MyClass;
public ObservableCollection<MyClass> MyClass
{
get { return _MyClass; }
set
{
var testCVS = (this.Resources["TestCVS"] as CollectionViewSource);
if (testCVS != null)
testCVS.Source = value;
}
}
After testing this I realize that the information is not showing on screen and I don't really know why, can anyone help me on this matter?
Hope this makes any sense, thanks in advance!
