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FormClosing Save MessageBox works on Datagridview but not on same form's TextBox.

dave_sky asked
Last Modified: 2011-09-20
Hi Experts,

VB.Net 2005
SQL Server 2005

Probably a very simple question but I can't get it figured out.

I have the code below that works on the FormClosing event when a change is made in a datagridview.
When I add a bound TextBox to the same form and edit without saving, the message is  not shown.

My Code:

 Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing

      Dim response As MsgBoxResult
      If DataSet1.HasChanges = True Then
         response = MsgBox("You have unsaved changes. Save them now?", MsgBoxStyle.YesNoCancel + MsgBoxStyle.Question, "Exiting - Save Changes?")
         If response = MsgBoxResult.Yes Then
            'save (and exit)
         ElseIf response = MsgBoxResult.Cancel Then
            'cancel will keep the form open so they can continue
            e.Cancel = True
         End If
      End If

  End Sub

Thanks for your help,

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