Convert Date Format

public static DateTime ConvertDateFormat(string str)
{
int dd, mm, yy;
string[] strarr = new string[3];
strarr = str.Split(new char[] { '/' }, str.Length);
dd = Int32.Parse(strarr[0]);
mm = Int32.Parse(strarr [1]);
yy = Int32.Parse(strarr[2]);
DateTime dt = new DateTime(yy,mm,dd);
return (dt);

}