C# remove empty url parameters regex

Question

I am trying to remove empty url type parameters from a string using C#. My code sample is here.

    public static string test ()
    {
        string parameters          


        

Answer 1

The results of the Regex replace is not returned by the function. The function returns the variable "parameters", which is never updated or changed.

string parameters = "one=aa&two=&three=aaa&four=";
...
string result = rgx.Replace(parameters, replacement);
return parameters;
....

Perhaps you meant

return results;