TreeView inside combo box binding issue

[Rana Pratap]

Hi,

I have a requirement where i need to get data from web service and bind it to treeview. This treeview should be inside combobox.

I am facing issue when i click on combo box , i am getting the following java script  error "sys.invalidoperationexception managedruntimeerror error 4004 in control 'silverlight1' " in browser. It worked fine for the first time. Please help me on this.

my XAML code

 <telerikInput:RadComboBox  x:Name="ddltreeviewFilters" Height="30"  Margin="40,0,20,95" Width="200" >
            <telerikNavigation:RadTreeView  x:Name="tvFilters" SelectionMode="Multiple" >
            </telerikNavigation:RadTreeView>
  </telerikInput:RadComboBox>

XAML.cs code for binding treeview

  if (e.Result.Count > 0)
                {                  
                    RadTreeViewItem tviPublicFilters = new RadTreeViewItem();
                    tviPublicFilters.Header = "PublicFilters";

                    for (int i = 0; i <= e.Result.Count; i++)
                    {
                        if (e.Result[i].PublicFilter == 1)
                        {
                            tviPublicFilters.Items.Add(new RadTreeViewItem() { Header = e.Result[i].FilterName });

                        }
                        tvFilters.Items.Add(tviPublicFilters);
                        
                    }
                }

Please help me on this Thanks in advance

[Valentin.Stoychev]

Hi Rana Pratap,

the best will be if you could send us a project that we can investigate. Before that you can try access the web service separately - wihtout binding it to treeview. And also to try to give another source for the treeview to see where the problem comes from.

If the treeview is not inside combobox is everything working normally?

Greetings,
Valentin.Stoychev
the Telerik team

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