How to open a parent of parent page in ASP.NET

Question

I am writing a C#, say a, code to display some information from data base. and sending that information to an excel sheet. For excel sheet i have return the script in another page. If there is no record in the data source it should come back to the main page i.e. to page a. How can i handle this.

Answer 1

if (RecordCount == 0)
{
    Response.Redirect("a.aspx");
}

Answer 2

In case your admins are doing URL rewriting you may have to pay attention where to redirect. So you may have to do the Redirect(..) relative to your application URL. Here's a good post which gives some insight in how to do that.