Add Values To Querystring In C#?

Feb 24, 2011

How can I add values to querystring?

I'm trying to do this:

String currurl = HttpContext.Current.Request.RawUrl;
var querystring = HttpContext.Current.Request.QueryString.ToString();
var PrintURL = currurl + (String.IsNullOrEmpty(querystring)) ?
HttpContext.Current.Request.QueryString.Add("print", "y") : string.Empty;

But I keep getting this error:

Cannot implicitly convert type 'string' to 'bool'

all i'm trying to do is get current url and add ?pring=y to querystring

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