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CheckBox.CausesValidation Property

Gets or sets a value indicating whether validation is performed when the CheckBox control is selected.

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

[ThemeableAttribute(false)]
public virtual bool CausesValidation { get; set; }
<asp:CheckBox CausesValidation="True|False" />

Property Value

Type: System.Boolean
true if validation is performed when the CheckBox is clicked; otherwise, false. The default is false.

Use the CausesValidation property to determine whether validation is performed on both the client and the server when a CheckBox control is selected. Page validation determines whether the input controls that are associated with a validation control on the page all pass the validation rules as specified by the validation control.

By default, clicking a CheckBox control does not cause page validation. To perform page validation when the CheckBox control is clicked, set the CausesValidation property to true.

When the value of the CausesValidation property is set to true, you can also use the ValidationGroup property to specify the name of the validation group for which the CheckBox control causes validation.

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

TopicLocation
Walkthrough: Validating User Input in a Web Forms PageBuilding ASP .NET Web Applications in Visual Studio

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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