string foo = new string(new char[] { 'b', 'a', 'r' });

new string(new char[] { 'b', 'a', 'r' });

'new string(new char[] { 'b', 'a', 'r' })' threw an exception of type 'System.ArgumentException'
    base {System.SystemException}: {"Only NewString function evaluation can create a new string."}
    Message: "Only NewString function evaluation can create a new string."
    ParamName: null