Quick C# Quiz

  • Article

Will
this code throw an AgrumentNullException? and why?

 

string
firstName = null;
String.Format (“{0}”, firstName); prefix = o ns = "urn:schemas-microsoft-com:office:office"
/>

 

Here
is the for code String.Format , if that helps…

public
static String Format(String format, Object arg0) {

           
return Format(null, format, new
Object[] {arg0});

       
}

public
static String Format( IFormatProvider
provider, String format, params Object[] args) {

           
if (format == null || args == null)

               
throw new
ArgumentNullException((format==null)?"format":"args");

           
StringBuilder sb = new StringBuilder(format.Length + args.Length *
8);

           
sb.AppendFormat(provider,format,args);

           
return sb.ToString();

       
}