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TextBox.ValidationGroup Property

Gets or sets the group of controls for which the TextBox control causes validation when it posts back to the server.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

[ThemeableAttribute(false)]
public virtual string ValidationGroup { get; set; }
<asp:TextBox ValidationGroup="String" />

Property Value

Type: System.String
The group of controls for which the TextBox control causes validation when it posts back to the server. The default value is an empty string ("").

Validation groups allow you to assign validation controls on a page to a specific category. Each validation group can be validated independently from other validation groups on the page. Use the ValidationGroup property to specify the name of the validation group for which the TextBox control causes validation when it posts back to the server.

This property has an effect only when the CausesValidation property is set to true. When you specify a value for the ValidationGroup property, only the validation controls that are part of the specified group are validated when the TextBox control posts back to the server. If you do not specify a value for this property and the CausesValidation property is set to true, all validation controls on the page that are not assigned to a validation group are validated when the control posts back to the server.

This property cannot be set by themes or style sheet themes. For more information, see ThemeableAttribute and ASP.NET Themes and Skins.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

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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