Int32.Parse() VS Convert.ToInt32()?

Question

intID1 = Int32.Parse(myValue.ToString()); intID2 = Convert.ToInt32(myValue); 

Which one is better and why?

Answer 1

They are exactly the same, except that Convert.ToInt32(null) returns 0.

Convert.ToInt32 is defined as follows:

    public static int ToInt32(String value) {         if (value == null)              return 0;         return Int32.Parse(value, CultureInfo.CurrentCulture);     } 

Answer 2

Well, Reflector says...

public static int ToInt32(string value) {     if (value == null)     {         return 0;     }     return int.Parse(value, CultureInfo.CurrentCulture); }  public static int Parse(string s) {     return Number.ParseInt32(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo); } 

So they're basically the same except that Convert.ToInt32() does an added null check.