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 Overview.

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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, 3.0, 2.0
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