AG_E_UNKNOWN_ERROR

[reema]

hi,

actually I'm tring to populate treeview from WCF , but I get  AG_E_UNKNOWN_ERROR  in xaml page line 11 

 

 

      <UserControl.Resources> 

 

11: <local:HierarchicalDataSource x:Key="Source" /> 
      <core:HierarchicalDataTemplate x:Key="NodeTemplate" ItemsSource="{Binding Children}">

 

     

<core:HierarchicalDataTemplate.HeaderTemplate>

 

 

      

<DataTemplate>

 

 

      

<TextBlock Text="{Binding NodeText}" TextWrapping="Wrap" Width="400"/>

 

 

 

 

 

 

      </DataTemplate>

 

 

     

</core:HierarchicalDataTemplate.HeaderTemplate>

 

 

      

</core:HierarchicalDataTemplate>

 

 

     

</UserControl.Resources>
 

 

 

what is the problem with my code?

[Valentin.Stoychev]

Hi reema,

what is local:HierarchicalDataSource?

Are you sure it is defined and it exists?

Sincerely yours,
Valentin.Stoychev
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[reema]

yes sure cause i just copied what is in Telerik Blogs > Populating Silverlight TreeView from WCF Service with LINQ to SQL
thanx ..

[Tihomir Petkov]

Hi reema,

The blog post you are refering to happens to be a bit outdated and we will update it ASAP. I am sending you a working example which correctly demonstrates what's described in the article. Let me know if this solves your problem.

Best wishes,
Tihomir Petkov
the Telerik team

Check out Telerik Trainer, the state of the art learning tool for Telerik products.

[reema]

yes thanx a lot it is okay now.
 

[Mark]

Another example where information is would be more beneficial than a download.  This practice of "example only" is not the best choice for those seeking information.

[Petar Mladenov]

Hi Mark,

We appreciate your feedback and will try to be more detailed in our answers. Thank you for your cooperation.

All the best,
Petar Mladenov
the Telerik team