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Page.ClientTarget Property

Gets or sets a value that allows you to override automatic detection of browser capabilities and to specify how a page is rendered for particular browser clients.

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

[<BrowsableAttribute(false)>]
member ClientTarget : string with get, set
<asp:Page ClientTarget="String" />

Property Value

Type: System.String
A String that specifies the browser capabilities that you want to override.

If you do not set the ClientTarget property, the HttpBrowserCapabilities object associated with the Page.Request property reflects the capabilities of the client browser. If you do set this property, client browser detection is disabled and the page will use browser capabilities associated with the value (alias) that you provide.

The root Web.config configuration file on the Web server computer defines the following default aliases that you can use as shorthand for common user-agent strings:

  • uplevel, which specifies browser capabilities equivalent to Internet Explorer 6.0.

  • downlevel, which specifies browser capabilities equivalent to older browsers that do not support client script. You can use this alias to determine how Web pages would work in a browser that has client script disabled.

You can set the alias programmatically using this property, or you can set it declaratively using the ClientTarget attribute of the @ Page directive.

You can define additional aliases in the clientTarget section of the application-level Web.config file. For more information, see clientTarget Element (ASP.NET Settings Schema).

The following code example defines an ie302 alias and includes sections needed to configure your application in its Web.config file. Using this alias, you can set the ClientTarget property to ie302 and customize pages specifically for Internet Explorer 3.02 browsers.

 <configuration>
   <system.web>
    <clientTarget>
     <add alias="ie302" useragent="Mozilla/2.0 (compatible; MSIE 3.02; Windows NT 3.5)" />
    </clientTarget>
   </system.web>
 </configuration>

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

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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