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Validating Strings in Visual Basic

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 (Visual Basic)

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 (Visual Basic)

How to determine whether a string has the characteristics of a strong password.

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