ScriptManager::IsInAsyncPostBack Property
.NET Framework (current version)
Gets a value that indicates whether the current postback is being executed in partial-rendering mode.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
public: [BrowsableAttribute(false)] property bool IsInAsyncPostBack { virtual bool get() sealed; }
Property Value
Type: System::Booleantrue 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
Available since 3.5
Available since 3.5
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