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UltraNumericEditor ValidationError event problem
posted

hi infragistics,

i attended the following problem in UltraNumericEditor.

i set range (1 to 10) to UltraNumericEditor. the same form i put UltraComboEditor. i gave a message box in UltraNumericEditor_ValidationError event.

In running mode course focus set in UltraNumericEditor, value = 0. if course move to UltraComboEditor, UltraNumericEditor_ValidationError event mesage box display three times.

How to solve this problem

 

regards,

yuva, PremierEvolvics.

 

 

 

sample forUltraNumericEditor ValidationError event problem.zip
  • 469350
    Verified Answer
    Offline posted

    Showing a MessageBox inside the ValidationError event causes a problem because the MessageBox itself will force the control to lose focus, which will force it to get validated again and creates a recursive cycle. 

        Sometimes you can get around this by instituting a delay before showing the MessageBox. For example, instead of calling the MessageBox directly inside the ValidationError event, use a Timer or a BeginInvoke:

     
        Private Sub UltraNumericEditor1_ValidationError(ByVal sender As Object, ByVal e As Infragistics.Win.UltraWinEditors.ValidationErrorEventArgs) Handles UltraNumericEditor1.ValidationError
            'MsgBox("Value out of range ", MsgBoxStyle.Critical, "PELMessage (" & Now & ")")
            Me.BeginInvoke(New MethodInvoker(AddressOf Me.ShowError))
        End Sub


        Public Sub ShowError()
            MsgBox("Value out of range ", MsgBoxStyle.Critical, "PELMessage (" & Now & ")")
        End Sub