Cellvalidating event

New() Column Combo Box = New No Key Up Combo Add Handler Column Combo Box. 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.

cellvalidating event-65cellvalidating event-72

Leave If is Editing Then Set Column Value At Row(cm Source, m Row Num, Column Combo Box. Private Sub Form1_Load(By Val sender As Object, By Val e _ 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.

Deleting everything in the cell still does not evaluate to a NULL Thanks Ah, you need the VALUE in the current cell... I guess the experts are laughing at me, but I'm not the least bit impressed with

I've put in over 8 hours just trying to validate a stupid cell on a Data Grid View. :) :) Thanks for your help, I'll happily give you the points.

The user is allowed to edit various fields on the datagridview, and I am trying to validiate the date fields before trying to update the database. It seems that in the _Cell Validating event you must look at "e.

I have written this: Private Sub dgv Top_Cell Validating(By Varing()) = False Then Message Box. Cancel = True End If End Select End Sub Which works just fine as far as finding an invalid date, gently alerting the user, and returning the focus to the offending cell. Formatted Value" to return the value that has been entered into the cell that you are validating (wtf ? 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. Text = Get Column Value At Row(source, row Num) Text Box. 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. 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. 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. Original Value of the column for the row, and if it was null, then we can simply reset that value to null.

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