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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; }
<asp:ValidationSummary ShowMessageBox="True|False" />

Property Value

Type: System.Boolean
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.

NoteNote:

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.

TopicLocation
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.

<asp:ValidationSummary 
     id="valSum" 
     DisplayMode="BulletList"
     ShowMessageBox="true"
     ShowSummary="false" 
     HeaderText="You must enter a value in the following fields:"
     Font-Names="verdana" 
     Font-Size="12"
     runat="server"/>

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, 1.1, 1.0

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