Response.End()

Question

User-1578974752 posted

  Response.End()

When I click a button in the result form ,then   Response.End() will be called. But from that form (End) I can go back to  result form.

How can I prevent user to click back arrow(windows) of the response. End form

Thanks

Answer 1

User288213138 posted

Hi shsu,

When I click a button in the result form ,then   Response.End() will be called. But from that form (End) I can go back to  result form.

what is form(End)? What is the relationship between him and the result form?

How can I prevent user to click back arrow(windows) of the response. End form

Do you want to disable the goback button on the page? If so, you can try below code.

The preventBack() method disable the goback button.

<script type="text/javascript">
        function preventBack() { window.history.forward(); }
        setTimeout("preventBack()", 0);
        window.onunload = function () { null };
    </script>

<form id="form1" runat="server">
        <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
    </form>

protected void Button1_Click(object sender, EventArgs e)
        {
            Response.Write("This is the refreshed page");
        }

The result:

Best regards,

Sam

Answer 2

User-1780421697 posted

There are 4 solutions describe here

https://lennilobel.wordpress.com/2009/07/26/defeat-the-evil-back-button-in-your-asp-net-applications/

For Server Side:

protected override void OnPreInit(EventArgs e)
{
    base.OnPreInit(e);
 
    Response.Buffer = true;
    Response.ExpiresAbsolute = DateTime.Now.AddDays(-1d);
    Response.Expires = -1500;
    Response.CacheControl = "no-cache";
    Response.Cache.SetCacheability(HttpCacheability.NoCache);
}

Answer 3

User-1578974752 posted

Thanks, If I want to show a message in the Response.end form  then how can I do that?

Answer 4

User288213138 posted

Hi shsu,

This is a new question, please post your question in new thread.

Best regards,

sam