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1.   
2. Response.StatusCode = 302;   
3. Response.StatusDescription = "Found";   
4.   
5. Response.RedirectLocation = "Login.aspx";   
6.   
7. Response.End()  

The Location HTTP header can alternatively be set using the Response.AppendHeader(name, value) method. That is, you could replace the Response.RedirectLocation property assignment in the code above with the following line of code:

1.   
2. Response.AppendHeader("Location", "Login.aspx");  

The following code shows how to issue a 301 Moved Permanently redirect:

1.   
2. Response.StatusCode = 301;   
3. Response.StatusDescription = "Moved Permanently";   
4.   
5. Response.RedirectLocation = "NewPageUrl.aspx";   
6.   
7. Response.End()