Binding TreeView ImageURL with ObjectDataSource, it's possible?

[Allin]

Hi,

I tried to bind ImageUrl property with ObjectDataSource without success. I look all demo and exemple for this work and i can't find how to bind this property.

My treeView display the text and build good structure, mais i can't set ImageUrl from my object.

I tried this in the markup 

ImageUrl="Image"
<telerik:RadTreeView ID="rtvNavigation" runat="server"
    MultipleSelect="false"
    Font-Size="9pt"
    Height="94%"
    Width="100%"
    DataSourceID="ObjectDataSource1"
    DataTextField="Description"
    DataFieldID="ID"
    DataFieldParentID="ParentID"
    AllowNodeEditing="false"
    ImageUrl="Image"
    OnNodeClick="rtvNavigation_NodeClick">
</telerik:RadTreeView>

and onNodeDataBound event, i can't set this imageURL because the ID is always empty.

Thank you for help!

[Boyan Dimitrov]

Hello,

I would recommend to use the RadTreeView NodeDataBound server-side event in order to achieve such scenario.
//code behind

protected void RadTreeView1_NodeDataBound(object sender, RadTreeNodeEventArgs e)
   {
       //in this specific case the TypeName="SiteDataItem" and the property that holds ImageUrl value is ImageUrl
       SiteDataItem dataItem = (SiteDataItem)e.Node.DataItem;
       e.Node.ImageUrl = dataItem.ImageUrl;
   }

Please find attached a sample project that implements the described scenario. Please keep in mind that the custom class SiteDataItem implementation is located in the App_Code folder.

Regards,
Boyan Dimitrov
the Telerik team

[Allin]

Thank you Boyan, that's work fine!