Closing Excel Application Process in C# after reading datat

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Hi,

I an reading an excel file using the interop , but after opening the file and reading it while closing a dialog box comes. how can i handle it
This is what i have written so far

C#

private void ReadExcel()
        {
            Excel.Application xlApp = new Excel.Application();
            Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(openFileDialog1.FileName);
            Excel._Worksheet xlWorksheet = xlWorkbook.Sheets[1];
            Excel.Range xlRange = xlWorksheet.UsedRange;
            .
            .
            .
            .
            xlWorkbook.Close(0);
            xlApp.Quit();
        }

This will prevent the dialog box, but an error comes from TFS . The error is "TFS Foundation found an error while performing operation, please save the changes and restart the application"

Posted 3-Apr-14 19:55pm

Arjun Menon U.K

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Maciej Los · Answer 1 · 2014-04-03T20:04:00

Solution 1

Have a look here: Workbook.Close method[^]

As you can see Close method has 3 inputs: SaveChanges, Filename, RouteWorkbook. In your case, the most important is: SaveChanges. It should be only true or false values, but...

MSDN wrote:
If there are changes to the workbook and the workbook appears in other open windows, this argument is ignored. If there are changes to the workbook but the workbook does not appear in any other open windows, this argument specifies whether changes should be saved, as shown in the following list.

Posted 3-Apr-14 20:04pm

Maciej Los

Comments

Arjun Menon U.K 4-Apr-14 2:22am

Since i am ready file, it is not open in any other window so as you said it will show a dialog. Besides its not getting removed as i can see a thread of excel.exe in task manager. So there is no way i can handle this?

Maciej Los 4-Apr-14 2:24am

http://stackoverflow.com/questions/158706/how-to-properly-clean-up-excel-interop-objects[^]

Arjun Menon U.K 4-Apr-14 2:28am

what about that TFS error

Maciej Los 4-Apr-14 2:36am

I have no idea. Try to debug program to find out which line throws this error, then let me know.

Arjun Menon U.K 4-Apr-14 2:45am

xlWorkbook.Close(0);

Maciej Los 4-Apr-14 2:48am

Try: xlWorkbook.Close(false, Missing.Value, Missing.Value);