DataGridViewComboBoxColumn

hi, i have a simple datagridview bound to a bindingsource which is bound to a datatable. i've replaced one of the standard textbox columns with datagridviewcomboboxcolumn which is where my problem begins. if i begin typing into the last datagridviewcomboboxcolumn row in the datagridview, and i don't worry about the editingcontrolshowing event, i can easily select a value from the datagridviewcombobocolumn and automatically a new row appears in the datagridview every time, all good.

with the code below i now address the editingconrolshowing event, as i want to add items to the datagridviewcombobocolumn if they don't exist. now if i begin typing into the last row in the datagridviewcomboboxcolumn, a new row does not automatically appear and even if i type the exact same text (even the entire word) as one of the existing combobox values and press enter this value isn't selected. the second time i try this it generally works.

I've also noticed that the first time i try to update a value at another row (not necessarily the last row) the newly selected value doesn't appear in the datagridviewcombobocolumn, also the second time i try this it generally works.

bald.

Private Sub dgv_workpackdata_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles dgv_workpackdata.EditingControlShowing

If (TypeOf e.Control Is ComboBox) Then

Dim combo As DataGridViewComboBoxEditingControl= CType(e.Control, DataGridViewComboBoxEditingControl)

If (combo IsNot Nothing) Then
combo.DropDownStyle = ComboBoxStyle.DropDown
End If

End If

Private Sub dgv_workpackdata_CellValidating(ByVal sender As Object, ByVal e As ystem.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles dgv_workpackdata.CellValidating

Dim drv As DataRowView

Select Case e.ColumnIndex

Case 10

drv = wp_data.bs_workpackdata.List.Item(wp_data.bs_workpackdata.List.Count - 1)
drv.BeginEdit()
drv.Item("ISOMETRIC") = e.FormattedValue
drv.EndEdit()

End Select

End Sub

End Su

DataGridViewComboBoxColumn

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