This documentation is archived and is not being maintained.
RegularExpressionValidator::ValidationExpression Property
Visual Studio 2010
Gets or sets the regular expression assigned to be the validation criteria. The default value is an empty string (""). This API is obsolete. For information about how to develop ASP.NET mobile applications, see the www.asp.net/mobile Web site.
Assembly: System.Web.Mobile (in System.Web.Mobile.dll)
[BindableAttribute(true)] public: property String^ ValidationExpression { String^ get (); void set (String^ value); }
<asp:RegularExpressionValidator ValidationExpression="String" />
Property Value
Type: System::StringThe regular expression assigned to be the validation criteria.
The RegularExpressionValidator does not perform validation on an empty string. To test for an empty string, use the RequiredFieldValidator and RegularExpressionValidator controls together.
| Exception | Condition |
|---|---|
| HttpException | The regular expression assigned was malformed. |
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, 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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