Required Validator for Bound DropDownBox

[Rick]

Hi, this is my second post about this since my first was not answered and then I guess removed.

I am using MS Visual Studio Professional.  The code is ASP.net.  I am using Telerik's RadGrid (latest versions I assume, I don't know how to tell..)

I am trying to add a Required validation to a bound Drop Down Box in the RadGrid.  I am thinking my problem is a syntax issue because I can get it to work for a regular text box, but the dropdown box just does not work.

This is the code I use for the textbox which works (trying to use the code block format):

    Protected Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemCreated


        If TypeOf e.Item Is GridEditableItem AndAlso e.Item.IsInEditMode Then


            Dim item As GridEditableItem = TryCast(e.Item, GridEditableItem)
            Dim editor As GridTextBoxColumnEditor = DirectCast(item.EditManager.GetColumnEditor("CurrencyTarget_NativeCurrent"), GridTextBoxColumnEditor)
            Dim cell As TableCell = DirectCast(editor.TextBoxControl.Parent, TableCell)
            Dim validator As New CompareValidator ' RequiredFieldValidator()


            editor.TextBoxControl.ID = "NCReqValidator"
            validator.ControlToValidate = editor.TextBoxControl.ID
            validator.Operator = ValidationCompareOperator.GreaterThanEqual
            validator.ValueToCompare = "0"
            validator.ErrorMessage = "* Native Current is a required field"
            cell.Controls.Add(validator)

        End If
End Sub

But when I add the same code for a drop down box, it does not work:

Protected Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles RadGrid1.ItemCreated


    If TypeOf e.Item Is GridEditableItem AndAlso e.Item.IsInEditMode Then
        Dim item2 As GridEditableItem = TryCast(e.Item, GridEditableItem)
        Dim editor2 As GridDropDownListColumnEditor = DirectCast(item2.EditManager.GetColumnEditor("ddCountryCode"), GridDropDownListColumnEditor)
        Dim cell2 As TableCell = DirectCast(editor2.DropDownListControl.Parent, TableCell)
        Dim validator2 As New CompareValidator ' RequiredFieldValidator()

        editor2.DropDownListControl.ID = "CCReqValidator"
        validator2.ControlToValidate = editor2.DropDownListControl.ID
        validator2.Operator = ValidationCompareOperator.NotEqual
        validator2.ValueToCompare = "XXX"
        validator2.ErrorMessage = "* Country Code is a required field"
        cell2.Controls.Add(validator2)

    End If


End Sub

[Milena]

Hello Rick,

You can find information on this matter here or in the last post in this forum.

Best wishes,
Milena
the Telerik team