Page.RaisePostBackEvent Method
.NET Framework 2.0
Notifies the server control that caused the postback that it should handle an incoming postback event.
Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)
Assembly: System.Web (in system.web.dll)
protected virtual void RaisePostBackEvent ( IPostBackEventHandler sourceControl, string eventArgument )
protected void RaisePostBackEvent ( IPostBackEventHandler sourceControl, String eventArgument )
protected function RaisePostBackEvent ( sourceControl : IPostBackEventHandler, eventArgument : String )
Not applicable.
Parameters
- sourceControl
The ASP.NET server control that caused the postback. This control must implement the IPostBackEventHandler interface.
- eventArgument
The postback argument.
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.
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); }
void DisplayUserName(Object sender, EventArgs ea)
{
get_Response().Write("Welcome to "
+ get_Server().HtmlEncode(userName.get_Text()));
} //DisplayUserName
void RaiseEvent(Object sender, EventArgs ea)
{
// Raise a post back event for a control.
this.RaisePostBackEvent(userButton, "");
} //RaiseEvent
void Page_Load(Object sender, EventArgs ea)
{
// Register a control as one that requires postback handling.
this.RegisterRequiresRaiseEvent(userButton);
} //Page_Load
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