VB.net adding ComboBox columns to a DataGridView that can accept text

Hi. I am using the following loop to add over two hundred columns to a DataGridView.
I need to programatically set the text value of any of the cells to something but get an error when I do this. How can I change my code so that text can be dropped in too?          


  Dim xx As New DataGridViewComboBoxColumn

        For i as integer = 0 to UBound(arrHeaders)

            xx.Name = arrHeaders(i)

            xx.Items.Add("Yes")

            xx.Items.Add("No")

            Me.DataGridView1.Columns.Add(xx)


        Next I
Murray BrownMicrosoft Cloud Azure/Excel Solution DeveloperAsked:
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nepaluzCommented:
Simply do:
For i As Integer = 0 To UBound(arrHeaders)
    Me.DataGridView1.Columns.Add(New DataGridViewComboBoxColumn With {.DataSource = {"Yes", "No"}, .Name = arrHeaders(i)})
Next i

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Murray BrownMicrosoft Cloud Azure/Excel Solution DeveloperAuthor Commented:
Hi. Thanks, but if I try and change the text to something that isn't in the list of ComboBox items I get an error
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nepaluzCommented:
Ahhh! you need to hande the CellValidating event of your datagridview to add thenew item. Add the following code (assuming you datagridviewis called DataGridView1)
If DataGridView1.CurrentCell.IsInEditMode Then
    If TypeOf (DataGridView1.CurrentCell) Is DataGridViewComboBoxCell Then
        If String.IsNullOrEmpty(e.FormattedValue.ToString) Then Exit Sub
        Dim cb = DirectCast(DataGridView1.CurrentCell, DataGridViewComboBoxCell)
        If Not cb.Items.Contains(e.FormattedValue) Then
            cb.Items.AddRange(e.FormattedValue)
            cb.Value = e.FormattedValue
        End If
    End If
End If

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NOTE: I additionally assume that you have already enabled editing on your datagridviewcomboboxcell!)
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Murray BrownMicrosoft Cloud Azure/Excel Solution DeveloperAuthor Commented:
fantastic. Thanks very much
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Visual Basic.NET

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