Web Reference: Sep 15, 2021 · Although you can use regular expressions and masks to validate user input, they are not completely equivalent. Regular expressions can express more complex patterns than masks, but masks can express the same information more succinctly and in a culturally relevant format. Sep 15, 2017 · The .NET MaskedTextBox control provides a mechanism to validate user input on a Form. For example, if you need a TextBox that should accept dates in a certain format, you should set the masking in the MaskedTextBox. Nov 4, 2019 · A visual basic MaskedTextBox control provides validation mechanism for user input on a form. It is the best way to stop users from entering invalid data into an input control. The MaskedTextBox control constrains the format of user input by distinguishing between proper and improper user input.
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