Question

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Whats the main difference between int.Parse() and Convert.ToInt32

Hi

I want to know what is the different between :

Convert.ToInt16 or Convert.ToInt32 or Convert.ToInt64

vs

Int.Parse

both of them are doing the same thing so just want to know what the different?

Answer 1

Convert.ToInt converts an object to an integer and returns 0 if the value was null.

int x = Convert.ToInt32("43"); // x = 43;
int x = Convert.ToInt32(null); // x = 0;
int x = Convert.ToInt32("abc"); // throws FormatException

Parse convert a string to an integer and throws an exception if the value wasn’t able to convert

int x = int.Parse("43"); // x = 43;
int x = int.Parse(null); // x throws an ArgumentNullException
int x = int.Parse("abc"); // throws an FormatException