what is use of out parameter in c#

Question

Can you please tell me what is the exact use of out parameter?

Related Question:
What is the differen

Answer 1

The best example of a good use of an out parameter are in the TryParse methods.

int result =-1;
if (!Int32.TryParse(SomeString, out result){
    // log bad input
}

return result;

Using TryParse instead of ParseInt removes the need to handle exceptions and makes the code much more elegant.

The out parameter essentially allows for more than one return values from a method.