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Doing so can cause your application or the operating system to stop responding.For more information, see the WM_KILLFOCUS topic in the "Keyboard Input Reference" section, and the "Message Deadlocks" section of the "About Messages and Message Queues" topic in the MSDN library at Resume Layout(False) End Sub #End Region Private Sub txt Name_Validating(By Val sender As Object, By Val e As System. I am doing a simple aplication using Windows Forms and I have a question...

If the e-mail address is not in the standard format (containing "@" and "."), the validation fails, an Error Provider icon is displayed, and the event is canceled.Whenever I try to view a previously saved record, the six textboxes get filled up with values (based from what was saved in the record) but they don't automatically sum up ('Total' displays the last inputted text and not the sum of the current values in the six textboxes). Validating Dim Len Str As String = Len(txt Amount2. I still have to make changes to any one of those six textboxes for the addition to happen (for the 'Total' to update). Text) Dim Raw String As String Len Str = Len Str - 4 If In Str(1, txt Amount2. I use this formatting for six textboxes that have to have their values added. So what happens is after I typed in an amount and left the textbox, the amount (the text I inputted) becomes formatted, and the 'Total' (where the sum is displayed) is automatically updated (I did this using the _Text Changed Event).

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