Page.RaisePostBackEvent(IPostBackEventHandler, String) Method
Definition
Important
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Notifies the server control that caused the postback that it should handle an incoming postback event.
protected:
virtual void RaisePostBackEvent(System::Web::UI::IPostBackEventHandler ^ sourceControl, System::String ^ eventArgument);
protected virtual void RaisePostBackEvent (System.Web.UI.IPostBackEventHandler sourceControl, string eventArgument);
abstract member RaisePostBackEvent : System.Web.UI.IPostBackEventHandler * string -> unit
override this.RaisePostBackEvent : System.Web.UI.IPostBackEventHandler * string -> unit
Protected Overridable Sub RaisePostBackEvent (sourceControl As IPostBackEventHandler, eventArgument As String)
Parameters
- sourceControl
- IPostBackEventHandler
The ASP.NET server control that caused the postback. This control must implement the IPostBackEventHandler interface.
- eventArgument
- String
The postback argument.
Examples
The following example uses the RaisePostBackEvent method to notify ASP.NET that a post-back event is raised when a custom userButton
server control is clicked.
void DisplayUserName(Object sender, EventArgs ea)
{
Response.Write("Welcome to " + Server.HtmlEncode(userName.Text));
}
void RaiseEvent(Object sender, EventArgs ea)
{
// Raise a post back event for a control.
this.RaisePostBackEvent(userButton, "");
}
void Page_Load(Object sender, EventArgs ea)
{
// Register a control as one that requires postback handling.
this.RegisterRequiresRaiseEvent(userButton);
}
Sub DisplayUserName(Sender As Object, e As EventArgs)
Response.Write("Welcome to " + Server.HtmlEncode(userName.Text))
End Sub
Sub MyRaiseEvent(Sender As Object, e As EventArgs)
'Raises a post back event for a control.
Me.RaisePostBackEvent(userButton, "")
End Sub
Sub Page_Load(Sender As Object, e As EventArgs)
'Registers a control as one that requires postback handling
Me.RegisterRequiresRaiseEvent(userButton)
End Sub
Remarks
The Page object calls the RaisePostBackEvent method when a postback occurs. This call occurs in the page life cycle after loading and change notification are complete but before prerendering occurs.
Applies to
See also
.NET
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