static variables in C#

[Natalia DeBow]

Hi,

I have a quick question. I am using a static variable to hold an instance
of the StreamWriter:
private static StreamWriter sw = File.AppendText("C:\\Temp\\Test.txt");

I am curious to find out how static resources are being disposed in C#. The
problem that I am having is I am opening to a file, write a text message and
then close it. However, if I try to write to the same file again, I
generate an ObjectDisposed exception, since the file was closed and the
FileStream has been disposed. So, I was thinking to let the GC to release
allocated resources and not call on Close method explicitly. But since the
StreamWriter resource that I am using is static, would the GC dispose it?
What is the lifecycle of static variables? What part of the memory do
static variables/methods reside in?

Thanks,
Natalia

[Leo Tohill]

My opinion:

Yes, a static resource will be disposed.

I think that the life of a static is the life of the domain into which it
was loaded.

Your static StreamWriter would be on the heap, while the reference to it is
in the data section (if I may) of the StreamWriter class.

hth
leo
"Natalia DeBow" <na***********@unisys.com> wrote in message
news:c4**********@si05.rsvl.unisys.com...

Hi,

I have a quick question. I am using a static variable to hold an instance
of the StreamWriter:
private static StreamWriter sw = File.AppendText("C:\\Temp\\Test.txt");

I am curious to find out how static resources are being disposed in C#. The problem that I am having is I am opening to a file, write a text message and then close it. However, if I try to write to the same file again, I
generate an ObjectDisposed exception, since the file was closed and the
FileStream has been disposed. So, I was thinking to let the GC to release
allocated resources and not call on Close method explicitly. But since the StreamWriter resource that I am using is static, would the GC dispose it?
What is the lifecycle of static variables? What part of the memory do
static variables/methods reside in?

Thanks,
Natalia