silverlight 4 treeview silently throws Binding Errors
So I have a silverlight treeview control bound to the type below, I set the DataContext
of my page to an instance of my ViewModel which has a Divisions
property that is a List of RmDivision
objects.
public class RmDivision
{
public RmDivision()
{
SubDivisions = new O开发者_运维知识库bservableCollection<RmDivision>();
}
public string Type { get; set; }
public string Name { get; set; }
public IList<RmDivision> SubDivisions { get; set; }
}
And then its bound like this:
<sdk:TreeView HorizontalAlignment="Stretch" Name="treeBranches"
ItemsSource="{ Binding Divisions }" VerticalAlignment="Stretch" SelectedValuePath="Division" Grid.Row="0" SelectedItemChanged="treeBranches_SelectedItemChanged">
<sdk:TreeView.ItemTemplate>
<sdk:HierarchicalDataTemplate ItemsSource="{Binding SubDivisions}">
<TextBlock Text="{Binding Name}" ToolTipService.ToolTip="{Binding Type}" />
</sdk:HierarchicalDataTemplate>
</sdk:TreeView.ItemTemplate>
</sdk:TreeView>
Now, I get no exceptions, everytime I click a treeeview item, only in my output window I see:
System.Windows.Data Error: BindingExpression path error: 'Division' property not found on 'xxx.Base.RmDivision' 'xxx.Base.RmDivision' (HashCode=35753827). BindingExpression: Path='Division' DataItem='xxx.Base.RmDivision' (HashCode=35753827); target element is 'System.Windows.Controls.ContentControl' (Name=''); target property is 'Content' (type 'System.Object')..
I'm kinda a newbie here and don't really know what is going on, the only way I know it is the treeview is because thats the only control that has to do anything with a Division
property, is it the SelectedValuePath
, I want the SelectedItem to be an instance of RmDivision and current it works like this.
Regards
Division is not a property of RmDivision. So every time you select a treeviewitem it will try to lookup the property and it can't find it.
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