Vb net datagridview validating

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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. A msgbox should popup and tell user what are the fields with wrong information. I'm not trying to use this program for web application.

Selected Index) 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.

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.

Selected Index) is Editing = False Invalidate() End If Column Combo Box. Currency Manager, By Val row Num As Integer) As Object Dim int Value As Integer int Value = CInt(My Base. At the end of the sample is showed how to use it Be aware this is a Tip for a Windows Forms Data Grid not a Data Grid View 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 Shared Sub New() End Sub Public Sub New() My Base.

Leave If is Editing Then Set Column Value At Row(cm Source, m Row Num, Column Combo Box. Msg This is a (changed and optimized) version from the one which we saw in past made by a lot of persons for the Windows Forms Data Grid which has no standard combobox, this one works with Option Strict On.

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