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RegularExpressionAttribute.IsValid Method

Checks whether the value entered by the user matches the regular expression pattern.

Namespace:  System.ComponentModel.DataAnnotations
Assembly:  System.ComponentModel.DataAnnotations (in System.ComponentModel.DataAnnotations.dll)

'Declaration
Public Overrides Function IsValid ( _
	value As Object _
) As Boolean
'Usage
Dim instance As RegularExpressionAttribute 
Dim value As Object 
Dim returnValue As Boolean 

returnValue = instance.IsValid(value)

Parameters

value
Type: System.Object

The data field value to validate.

Return Value

Type: System.Boolean
true if validation is successful; otherwise, false.

ExceptionCondition
ValidationException

The data field value did not match the regular expression pattern.

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

Supported in: 3.5 SP1
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