Question

I have the following on a page:

@{ Session["CurrentUrl"] = Request.Url.ToString(); }

I then call another page and in the action method of that page I try to return to the original page using the following

return Session["CurrentUrl"] == null ?
    Index() :
    Redirect(Session["CurrentUrl"]);

The method seemed good but when I tried to implement this I received errors saying:

Error   51  The best overloaded method match for 'System.Web.Mvc.Controller.Redirect(string)' has some invalid arguments    
"Error  52  Argument 1: cannot convert from 'object' to 'string') 

Can anyone help by telling me what’s wrong here. I am not sure how I can fix this error.

Answer 1

You need to cast Session["CurrentUrl"] to string because the method expects a string

return Session["CurrentUrl"] == null ?
    Index() :
    Redirect((string)Session["CurrentUrl"]);