Disposables, Using & Try/Catch Blocks
- by Aren B
Having a mental block today, need a hand verifying my logic isn't fubar'ed.
Traditionally I would do file i/o similar to this:
FileStream fs = null; // So it's visible in the finally block
try
{
fs = File.Open("Foo.txt", FileMode.Open);
/// Do Stuff
}
catch(IOException)
{
/// Handle Stuff
}
finally
{
if (fs != null)
fs.Close();
}
However, this isn't very elegant.
Ideally I'd like to use the using block to dispose of the filestream when I'm done, however I am unsure about the synergy between using and try/catch.
This is how i'd like to implement the above:
try
{
using(FileStream fs = File.Open("Foo.txt", FileMode.Open))
{
/// Do Stuff
}
}
catch(Exception)
{
/// Handle Stuff
}
However, I'm worried that a premature exit (via thrown exception) from within the using block may not allow the using block to complete execution and clean up it's object. Am I just paranoid, or will this actually work the way I intend it to?
