c# 4.0 - C# String.Format and object as argument -

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here idea reading string .resx file

and here sample of such string :"i writing {}"

i wrote function pass values arguments. don't know number of arguments expected string

    public string myformattedstring (string resourcename, object param=null)     {         string fstr= resources.resourcemanager.getstring(resourcename);          fstr= string.format(fstr, param);          return fstr;     }

if call function myformattedstring ("resourcename", "nowhere"), not expecting what's wrong?

i found solution issue using params object[] discovered

public string myformattedstring (string resourcename,  params object[] param) {     string fstr= resources.resourcemanager.getstring(resourcename);      fstr= string.format(fstr, param);      return fstr; }

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