RegularExpressionAttribute Class

When you apply this attribute to a data field, you must follow the guidelines for the use of the validation attributes. For more information, see ASP.NET Dynamic Data Guidelines.

The following example shows how to use the RegularExpressionAttribute attribute to validate the FirstName and LastName data fields. The regular expression allows up to 40 uppercase and lowercase characters. The example performs the following tasks:

• Implements a metadata partial class and the associated metadata class.

• In the associated metadata class, applies the RegularExpressionAttribute attribute to the FirstName and LastName data fields, specifying the pattern and custom error messages.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Reference