ScriptManager.AsyncPostBackSourceElementID Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
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
反馈
https://aka.ms/ContentUserFeedback。
即将发布:在整个 2024 年,我们将逐步淘汰作为内容反馈机制的“GitHub 问题”,并将其取代为新的反馈系统。 有关详细信息,请参阅:提交和查看相关反馈