what is the difference between finally and dispose methods?

Question Posted / swapna

3 Answers
15304 Views
HCL, Patni, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what is the difference between finally and dispose methods?..

Answer / monika

The important difference is timing. Finalize is called
after the .NET garbage collector runs. That can take a
while, depending on how frequently you allocate memory and
in what generation the object lives. Dispose() is the
standardized way to free up the unmanaged resources your
object uses well before the finalizer gets a chance to do
so. A Bitmap would be a good example, it takes very few
managed resources but can eat a huge chunk of unmanaged
memory, depending on the size of the bitmap. If you don't
call Dispose on it after you're done using it, your app can
potentially consume large amounts of unused memory for an
extended amount of time.

While Finalize is called automatically, Dispose() isn't.
You must call it explicitly or you can use the V2.0 "using"
statement in VB.NET or C#. Or the "stack allocation"
syntax in C++/CLI. Using "using" is preferred, it ensures
Dispose() is called, even if there's an exception. When
Dispose() runs, you won't need the finalizer anymore so
call GC.SuppressFinalize(). That makes the finalizer
thread running a lot leaner too.

You don't have to implement Dispose() if your class doesn't
consume unmanaged resources. If it has a member that
implements Dispose(), you'll need to implement Dispose()
too so you can call that member's Dispose() method.

Is This Answer Correct ?

53 Yes

2 No

what is the difference between finally and dispose methods?..

Answer / sunil

finally will execute after the try block. It must execute
if there is any exception caught in the catch blobk or not.

Dispose method is the last method executed in the c# program

Is This Answer Correct ?

12 Yes

16 No

what is the difference between finally and dispose methods?..

Answer / m.m.ganesh

compulsory finally will execute after try and catch
block.Dispose method is used to clean up the
objects.Dispose methos will call in finally method to clean
up the objects

Is This Answer Correct ?

6 Yes

19 No

Post New Answer