[Solved] RadComboBox withTreeView

[venm]

Hi

I have a treeview control inside a radcombobox.

When I try to databind to the treeview Iam getting error "These columns don't currently have unique values"
It works fine if I comment  " .DataFieldParentID = "ParentId", but parentId column cannot have unique values.
I am confused can any one help me in this regard.

radTree = DirectCast(RadComboBoxCategoryLevels.Items(0).FindControl("RadTreeView"), RadTreeView)
        radTree.Nodes.Add(New RadTreeNode("Any Category", ""))
        If Not IsNothing(dtCategoryLevels) Then
            With radTree
                .DataTextField = "Name"
                .DataValueField = "FriendlyURL"
                .DataFieldID = "id"
                .DataFieldParentID = "ParentId"
                .DataSource = dtCategoryLevels
                .DataBind()
            End With
        End If

[venm]

Hi,

I figured out, my Id column did not had unique values & the control was failing when it was trying to created relation between parentId & Id column.