ASP.NET: What happens to code after Response.Redirect(...)?

asp.net page-lifecycle
Brandon picture Brandon · Aug 10, 2009 · Viewed 15.4k times · Source

Does Response.Redirect() cause the currently running method to abort? Or does code after Response.Redirect() execute also?

(That is, is it necessary to return/Exit Sub after a Response.Redirect?)

Answer

Martin Liversage picture Martin Liversage · Aug 10, 2009

Response.Redirect has an overload accepting a boolean argument that indicates if the call to Response.Redirect should end the response. Calling the overload without this argument is the same as specifying true to indicate that the response should end.

Ending the reponse means that Response.End is called after the response has been modified to make the redirect happen, and Response.End throws an ThreadAbortException to terminate the current module.

Any code after a call to Response.Redirect is never called (unless you supply false for the extra argument). Actually, code in finally and certain catch handlers will execute, but you cannot swallow a ThreadAbortException.

Related questions

C# Clear Session

Question #1 I want to know when am I supposed to use: Session.Abandon() // When I use this during tracing and after calling it- I find the session still has a value. And when am I supposed to use : Session.Clear() …

Read More
ASP.NET page life cycle explanation

I was asked to explain the ASP.NET page life cycle in an interview some time back. I did explain it to him, but he was not satisfied with my answer. Could someone explain the life cycle to me please?

Read More
On postback, how can I check which control cause postback in Page_Init event

On postback, how can I check which control cause postback in Page_Init event. protected void Page_Init(object sender, EventArgs e) { //need to check here which control cause postback? } Thanks

Read More