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Page.IsAsync Property

Gets a value indicating whether the page is processed asynchronously.

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

'Declaration
Public ReadOnly Property IsAsync As Boolean

Property Value

Type: System.Boolean
true if the page is in asynchronous mode; otherwise, false;

Use the IsAsync property to determine whether the Web page is running in asynchronous mode. This information is useful if controls or code on the page need to modify their behavior depending on whether the page is asynchronous. For more information about asynchronous programming, see Asynchronous Operations.

.NET Framework

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