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This section discusses how to validate strings in Visual Basic.
How to: Validate File Names and Paths in Visual Basic
How to determine whether a string represents a file name or path.
How to: Validate Strings That Represent Dates or Times
How to determine whether a string represents a valid date.
Using Regular Expressions with the MaskedTextBox Control in Visual Basic
Demonstrates how to convert simple regular expressions to work with the MaskedTextBox control.
Walkthrough: Validating That Passwords Are Complex
How to determine whether a string has the characteristics of a strong password.
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