Question

It seems like it does as per some initial testing, but what I’d like to know is if it is guaranteed to return or if in some cases it can not return? This is critical for my application but I haven’t found a use-case yet where it wouldn’t return.
I’d like to get expertise on the subject.

Answer 1

Under normal conditions, code in a finally block will be executed regardless of what happens inside the try or catch blocks. It doesn’t matter if you return from the method or not.

There are cases where this is not true. For example if the code in the finally block throws an exception, then it will stop executing like any other block of code.

Eric Lippert has written a much more comprehensive answer that outlines additional cases: https://stackoverflow.com/a/10260233/53777

In regards to goto, the answer is still yes. Consider the following code:

try
{
    Console.WriteLine("Inside the Try");
    goto MyLabel;
}
finally
{
    Console.WriteLine("Inside the Finally");
}

MyLabel:
    Console.WriteLine("After the Label");

The output produced is this:

Inside the Try

Inside the Finally

After the Label