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RegularExpressionAttribute Constructor
Visual Studio 2008
Initializes a new instance of the RegularExpressionAttribute class.
Assembly: System.ComponentModel.DataAnnotations (in System.ComponentModel.DataAnnotations.dll)
Parameters
- pattern
- Type: System::String
The regular expression that is used to validate the data field value.
| Exception | Condition |
|---|---|
| ArgumentNullException | pattern is nullptr. |
The following example shows how to apply the RegularExpressionAttribute to a data field. If validation fails, the code in the example displays the validation error message that is provided by Dynamic Data.
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.
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