Question

I’m having a bit of trouble trying to find if my url parameters exist or not.

I have tried the following:

 // doesn't work
(Request.QueryString["showTop"] != "" && Request.QueryString["showTop"] != null)
 // doesn't work
(Request.Params["showTop"] != "" && Request.Params["showTop"] != null)

I am trying to find the correct value. The full statement looks like:

showTop = (Request.QueryString["showTop"] != "" &&
           Request.QueryString["showTop"] != null) ? 
                     Request.QueryString["showTop"]  : (10).ToString();

Which works fine, if showTop exists with a value.

This is being done within the view.

Answer 1

Try the following:

showTop = string.IsNullOrEmpty(Request["showTop"]) ? "10" : Request["showTop"];

Assuming you want “showTop”to default to “10”.