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RegularExpressionAttribute Constructor
Visual Studio 2010
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 null. |
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 SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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