'宣言
Public Overridable Function GetMaskInfo( _
ByVal As Object, _
ByRef As String, _
ByRef As Infragistics.Win.UltraWinMaskedEdit.MaskMode, _
ByRef As Infragistics.Win.UltraWinMaskedEdit.MaskMode, _
ByRef As Infragistics.Win.UltraWinMaskedEdit.MaskMode _
) As Boolean