You have to use System.Runtime.InteropServices.Marshal.ReleaseComO bject to
manually release COM objects such as Excel.
Garbage collector will release it eventually but you never know when.
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Also be careful (very careful) with statements like that
myApp.Workbooks.Close();
Behind the scene compiler does following
tmp = myApp.Workbooks
tmp.Close()
So the variable tmp is a COM object and will not be released. Bottom line,
you should never have more than one dot in your statement when work with COM
objects.
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Here is your code rewritten that should close Excel. (it's a pseducode)
myBook.Close(null,null,null);
Marshal.ReleaseComObject(myBook);
myBook = null;
tmp = myApp.Workbooks
tmp.Close();
Marshal.ReleaseComObject(tmp);
tmp = null;
myApp.Quit();
Marshal.ReleaseComObject (myApp);
myApp = null;
George.
"Baren" <Ba***@discussions.microsoft.comwrote in message
news:C9**********************************@microsof t.com...
Hi! All,
I am using a ASP.NEt application, wherein i am automating Execl object. I
am not able to destroy the instance, eve if I write this to destroy the
instance of Excel. Please find the code below
GC.Collect(0);
myBook.Close(null,null,null);
myApp.Workbooks.Close();
myApp.Quit();
mySheet = null;
myBook = null;
myApp = null;
