Gets or sets the group of controls for which the ValidationSummary object displays validation messages.
Assembly: System.Web (in System.Web.dll)
Validation groups allow you to assign validation controls on a page to a specific category. Each validation group can be validated independently of other validation groups on the page. Use the property to specify the name of the validation group for which the ValidationSummary control will summarize error messages.
When you specify a value for the ValidationSummary property, only error messages from the validation controls that are part of the specified group are summarized. If you do not set a value for this property, all error messages from validation controls on the page that are not assigned to a validation group are summarized.
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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.