How do I convert int? into int

Question

Hello,

I've create a SPROC that saves an object and returns the id of the new object saved. Now, I'd like to return an int not an int?

public int Save(Contact contact)
{
  int? id;
  context.Save_And_SendBackID(contact.FirstName, contact.LastName, ref id);
  //How do I return an int instead of an int?
}

Thanks for helping

Answer 1

return id.Value; // If you are sure "id" will never be null

or

return id ?? 0; // Returns 0 if id is null

Answer 2

return id.Value;

You might wanna check if id.HasValue is true, and return 0 or something if not.

Answer 3

if (id.HasValue) return id.Value;
else return 0;

Answer 4

You could use the GetValueOrDefault() function on Nullable.

return id.GetValueOrDefault(0); // Or whatever default value is wise to use...

Note that this is similar to the coalescing answer by Richard77 but I would say slightly more readable...

However, deciding whether this is a good idea is up to you. Such that perhaps an exception is more appropriate?

if (! id.HasValue)
    throw new Exception("Value not found"); // TODO: Use better exception type!

return id.Value;

Answer 5

return id.HasValue ? id.Value : 0;

this returns the value of id in case it is not null and 0 in the other case.