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ShowMessageBox Property

ValidationSummary.ShowMessageBox Property

Gets or sets a value indicating whether the validation summary is displayed in a message box.

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

public bool ShowMessageBox { get; set; }
/** @property */
public boolean get_ShowMessageBox ()

/** @property */
public void set_ShowMessageBox (boolean value)

public function get ShowMessageBox () : boolean

public function set ShowMessageBox (value : boolean)

Property Value

true if the validation summary is to be displayed in a message box; otherwise, false. The default is false.

This property can be used in addition to the ShowSummary property to control where the validation summary is displayed. If this property and EnableClientScript are both set to true, the validation summary is displayed in a message box. If EnableClientScript is set to false, this property has no effect.


If both the ShowMessageBox and ShowSummary properties are set to true, the validation summary is displayed in both a message box and on the Web page.

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

The following code example demonstrates how to use the ShowMessageBox and ShowSummary properties to specify that the validation summary is displayed only in a message box.

     HeaderText="You must enter a value in the following fields:"

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

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