Datagrid cellvalidating event
Selection Change Committed, _ New Event Handler(Address Of Combo Start Editing) End Sub Protected Overloads Overrides Sub Edit(By Val source As Currency Manager, _ By Val row Num As Integer, By Val bounds As Rectangle, By Val read Only1 As Boolean, _ By Val instant Text As String, By Val cell Is Visible As Boolean) My Base.
New() Column Combo Box = New No Key Up Combo Add Handler Column Combo Box.
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Width = 80 End With Dim col Name As New Data Grid Text Box Column With col Name .
Add(ts) ts = Nothing col Discontinued = Nothing col Name = Nothing Data Grid1. Tables("Products") End Sub Private Sub Cell Validating(By Val sender As Object, By Val e As System.
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Add(ts) End Sub End Class Public Class Data Grid Combo Box Column Inherits Data Grid Text Box Column Public With Events Column Combo Box As No Key Up Combo 'special class Private With Events cm Source As Currency Manager Private m Row Num As Integer Private is Editing As Boolean Dim str Values() As String = Shared Sub New() End Sub Public Sub New() My Base.
Hide() End Sub Protected Overrides Function Get Column Value At Row(By Val source As System. Get Column Value At Row(source, row Num)) Return str Values(int Value) End Function End Class Public Class No Key Up Combo Inherits Combo Box Protected Overrides Sub Wnd Proc(By Ref m As System. New() Column Combo Box = New No Key Up Combo Add Handler Column Combo Box. Focus() End Sub Protected Overloads Overrides Function Commit(By Val data Source As _ Currency Manager, By Val row Num As Integer) As Boolean If is Editing Then is Editing = False Set Column Value At Row(data Source, row Num, Column Combo Box. Hide() End Sub End Class Public Class No Key Up Combo Inherits Combo Box Protected Overrides Sub Wnd Proc(By Ref m As System. Column Started Editing(Direct Cast(sender, Control)) End Sub Private Sub Leave Combo Box(By Val sender As Object, By Val e As Event Args) _ Handles Column Combo Box. Wnd Proc(m) End If End Sub /// This is a sample how to use it \\Sample to use the simple datagrid combobox it needs a form with a datagrid. Text) End If Return True End Function Private Sub Combo Start Editing(By Val sender As Object, By Val e As Event Args) is Editing = True My Base. For that the Windows Forms Data Grid can still be used in Framework 4.