String.IndexOf(string, int, int) bug? help!

[Qun]

Hi all.
this is in .net 2.0, c#

//code
string d = "dddd????";
int i = d.IndexOf('?', 0, 3); // return -1, why???
// end

Thanks

 

[Markus Kling]

Your code only searches for a '?' within the substring (0, 3) and there is
no '?'. The answer is correctly -1

http://msdn2.microsoft.com/de-de/library/ms131434.aspx

Markus