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Page.AsyncMode Property

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Sets a value indicating whether the page is processed synchronously or asynchronously.

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

protected function get AsyncMode () : boolean 
protected function set AsyncMode (value : boolean)
<asp:Page AsyncMode="True|False" />

Property Value

Type: System.Boolean
true if the page is processed asynchronously; otherwise, false.

The AsyncMode property is set by the Page parser when code for the page is generated. Use the Async attribute in @ Page directive to set this value.

Asynchronous pages do not work when the AspCompat attribute is set to true or the Transaction attribute is set to a value other than Disabled in the @ Page directive.

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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