当用户导航离开页面或退出浏览器时，如何在ASP.net中销毁会话

Question

I have three session that I am setting navigating from my homepage to another page, like this:

Session["LocationText"] = locText;
Session["SpecialtyText"] = speText;
Session["GenderText"] = genText;

Response.Redirect("anotherpage.aspx", false);

Once I am in anotherpage.aspx , and either I navigate away from the page or close the browser, I would like to destroy those variable. The whole idea is, if I come back to anotherpage.aspx and it wasn't redirected from the page from a button click, it will not have any sessions.

I tried the following:

protected void Page_Unload(object sender, EventArgs e) {
    Session.Remove("LocationText");
    Session.Remove("SpecialtyText");
    Session.Remove("GenderText");
}

When I navigated away from the page and came back to it, it didn't destroy the variables. How can I achieve what I am looking to do?

UPDATE :

homepage:

Context.Items["LocationText"] = locText;
Context.Items["SpecialtyText"] = speText;
Context.Items["GenderText"] = genText;

anotherpage:

if (Context.Items["LocationText"] != null && Context.Items["SpecialtyText"] != null && Context.Items["GenderText"] != null) {
    slcLocation.SelectedValue = Context.Items["LocationText"].ToString();
    slcSpecialty.SelectedValue = Context.Items["SpecialtyText"].ToString();
    slcGender.SelectedValue = Context.Items["GenderText"].ToString();
    this.onBtnClick();
}

Answer 1

Based on your question and comment, it sounds like Context may be more appropriate than Session . Variables in Context only live for the life of the current request.

Answer 2

Why not use Session.Abandon() on your Page_Unload event. You can start a new session again.