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User input validation VB.Net

dr_dudd
dr_dudd asked
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Last Modified: 2012-06-22
Hopefully from the below people can understand what i am trying to do.....

I have a masked text box array created at runtime (00:00 mask) and wish to make sure that time entered is valid. I have been racking my brains at this all day and have not come up with a solution perhaps experts here will be able to stop me from going completely crazy. I have the below code but when i run the application i am still able to enter an invalid time.

Blocksoff(z) = New MaskedTextBox
        With Blocksoff(z)
            .Left = 355
            .Top = 52 + (z * 25)
            .Height = 20
            .Width = 35
            .Mask = TMask
            .ValidatingType = GetType(System.DateTime)
        End With
        Me.Controls.Add(Blocksoff(z))

Any help with input validation would be much appreciated.

Thanks in advance
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