troubleshooting Question

DataGridViewComboBoxColumn Error (Object reference not set to an instance of an object)

Avatar of hatem72
hatem72 asked on
.NET ProgrammingC#Visual Basic.NET
6 Comments2 Solutions496 ViewsLast Modified:
VB 2005, Windows Forms

Here is my code:

        Dim nColCombo1 As New DataGridViewComboBoxColumn
        With nColCombo1
            .HeaderText = "Item"
            .Name = "Col_ItemID"
            Dim x As String = MyItem.FillItemsGrid(nColCombo1) ' Rise Error
        End With

In my class :

   Public Function FillItemsGrid(ByRef cBox As Object, Optional ByVal ProvId As Integer = 0) As String
        Dim Sqls As String

My Problem is the error was rised when calling the function ( Object reference not set to an instance of an object . )

Thanx in advance
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