ScriptManager.AsyncPostBackSourceElementID Property
Definition
Important
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Gets the unique ID of the control that caused the asynchronous postback.
public:
property System::String ^ AsyncPostBackSourceElementID { System::String ^ get(); };
[System.ComponentModel.Browsable(false)]
public string AsyncPostBackSourceElementID { get; }
[<System.ComponentModel.Browsable(false)>]
member this.AsyncPostBackSourceElementID : string
Public ReadOnly Property AsyncPostBackSourceElementID As String
Property Value
The unique ID of a control, if the control has an ID; otherwise, an empty string ("").
- Attributes
Remarks
The AsyncPostBackSourceElementID property contains the value of the control ID that caused the asynchronous postback, which can be one of the following:
A postback from a control that is inside an UpdatePanel control whose ChildrenAsTriggers property is set to
true
(the default).A postback from a control that is a trigger for an UpdatePanel control.
A postback from a control that is registered by calling the RegisterAsyncPostBackControl method of the ScriptManager control.
Applies to
See also
.NET
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