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IsInAsyncPostBack Property

ScriptManager.IsInAsyncPostBack Property

Gets a value that indicates whether the current postback is being executed in partial-rendering mode.

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

[<BrowsableAttribute(false)>]
abstract IsInAsyncPostBack : bool with get
[<BrowsableAttribute(false)>]
override IsInAsyncPostBack : bool with get

Property Value

Type: System.Boolean
true if the current postback is executing in partial-rendering mode; otherwise, false.

Use the IsInAsyncPostBack property in combination with the IsPostBack property to distinguish between the initial page load, a partial-page update, and a full-page update in Load, InitComplete, or PreRender events.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5
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