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AsyncPostBackTrigger::HasTriggered Method

Returns a value that indicates whether the trigger was invoked.

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

protected public:
virtual bool HasTriggered() override

Return Value

Type: System::Boolean
true if the trigger was invoked; otherwise, false.

Control developers can override the HasTriggered method to provide custom logic for determining whether the trigger was invoked. To see a custom trigger in the Triggers element of the UpdatePanel control, you can add an @ Register directive to the page or to the controls element of the Web.config file.

.NET Framework

Supported in: 4, 3.5

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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