How to convert string to integer in C#

How do I convert a string to an integer in C#?

If you're sure it'll parse correctly, use

int.Parse(string)

If you're not, use

int i;
bool success = int.TryParse(string, out i);

Caution! In the case below, i will equal 0, not 10 after the TryParse.

int i = 10;
bool failure = int.TryParse("asdf", out i);

This is because TryParse uses an out parameter, not a ref parameter.

int myInt = System.Convert.ToInt32(myString);

As several others have mentioned, you can also use int.Parse() and int.TryParse().

If you're certain that the string will always be an int:

int myInt = int.Parse(myString);

If you'd like to check whether string is really an int first:

int myInt;
bool isValid = int.TryParse(myString, out myInt); // the out keyword allows the method to essentially "return" a second value
if (isValid)
{
    int plusOne = myInt + 1;
}