I could be way off with this but doesn't the filling of a combo box have to be done explicitly?
I do it in the code behind, on the ItemDataBound event handler
Protected Sub gvVendor_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles gvVendor.ItemDataBound
Dim dgItem As GridDataItem = Nothing
Dim gefItem As GridEditFormItem = Nothing
Dim geItem As GridEditableItem = Nothing
If TypeOf e.Item Is IGridInsertItem Then
ElseIf TypeOf e.Item Is GridDataItem Then
dgItem = CType(e.Item, GridDataItem)
FillInCheckBoxes(dgItem)
End If
If TypeOf e.Item Is GridEditableItem Then
geItem = CType(e.Item, GridEditableItem)
FillInRepGroups(geItem)
End If
End Sub
Private Sub FillInRepGroups(ByVal geItem As GridEditableItem)
Dim geManager As GridEditManager = Nothing
Dim gddlEditor As GridDropDownListColumnEditor = Nothing
Dim rcbRepGroup As RadComboBox
Dim rcbItem As RadComboBoxItem = Nothing
Dim ds As DataSet = Nothing
Dim ws As CommonFunctions
If geItem.IsInEditMode Then
Else
Exit Sub
End If
geManager = geItem.EditManager
gddlEditor = CType(geManager.GetColumnEditor("RepGroup"), GridDropDownColumnEditor)
rcbRepGroup = gddlEditor.ComboBoxControl
ws = New CommonFunctions
ds = ws.GetRepGroups
rcbRepGroup.DataSource = ds.Tables(0)
rcbRepGroup.DataValueField = "RepGroupsID"
rcbRepGroup.DataTextField = "RepGroups"
rcbRepGroup.DataBind()
rcbItem = New RadComboBoxItem("Select One", 0)
rcbRepGroup.Items.Insert(0, rcbItem)
End Sub