Validating Strings in Visual Basic

This section discusses how to validate strings in Visual Basic.

In This Section

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.

See also

• Strings
• MaskedTextBox Control