c# - Argument type 'string' is not assignable to parameter type 'System.Collection.Generic.KeyValuePair<string,object>' -

so i'm refactoring old application, , made new sql helper class take on db work. contains 1 method , don't know why i'm getting error that's mentioned in title.

here's code:

    public class helper {     private static string connectionstring     {                 {             return configurationsettings.appsettings["connectionstring"];         }     }       public static dataset executedataset(string commandtext,params keyvaluepair<string,object>[] paramslist)     {         if (paramslist.length > 0)             return helper.executedataset(connectionstring, commandtext, paramslist.select(s => new mysqlparameter(s.key, s.value)).toarray());          return helper.executedataset(connectionstring, commandtext);     } } 

executedataset's paramslist keyvaluepairs, passing in string.

i'm not sure goal is, have infinite recursion @ point because every path recursively calls executedataset before returns.