WPF beginner here.
I managed to bind a TreeView control to a DataViewManager using the code shown at the end of this post. Everything works fine when populating the TreeView control initially but I want to implement two way binding so that I can use a textbox to filter out unwanted TreeView items. My problem is that the treeview isn't updated if I'm trying to use something like this:
private void SearchTree_TextChanged(object sender, TextChangedEventArgs e)
{
if(SearchTree.Text.Length>0)
Command.dvm.DataViewSettings["Categories"].RowFilter = "CategoryName LIKE '%"+SearchTree.Text+"%'";
}
Can anyone please help me find out what I'm doing wrong here?!
Xaml:
...
<UserControl.Resources>
<ObjectDataProvider
x:Key="dataVMProvider"
MethodName="CreateDataVM"
ObjectType="{x:Type local:DataVMCreator}"
/>
<DataTemplate x:Key="InstancesTemplate">
<TextBlock Text="{Binding InstanceUID}"/>
</DataTemplate>
<HierarchicalDataTemplate
x:Key="SymbolsTemplate"
ItemsSource="{Binding Symbols2Instances}"
ItemTemplate="{StaticResource InstancesTemplate}"
>
<TextBlock Text="{Binding SymbolName}"/>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate
x:Key="FamiliesTemplate"
ItemsSource="{Binding Families2Symbols}"
ItemTemplate="{StaticResource SymbolsTemplate}"
>
<TextBlock Text="{Binding FamilyName}"/>
</HierarchicalDataTemplate>
<HierarchicalDataTemplate
x:Key="CategoriesTemplate"
ItemsSource="{Binding Categories2Families}"
ItemTemplate="{StaticResource FamiliesTemplate}"
>
<TextBlock Text="{Binding CategoryName}"/>
</HierarchicalDataTemplate>
</UserControl.Resources>
...
<TreeView
x:Name="ElementsTree"
...
DataContext="{StaticResource dataVMProvider}"
ItemsSource="{Binding Categories}"
ItemTemplate="{StaticResource CategoriesTemplate}"
/>
The DataViewManager comes from:
public static class DataVMCreator
{
public static DataViewManager CreateDataVM()
{
return Command.dvm;
}
}
