Renaming the generated excels in C# Windows Service

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Hi,

I have made a windows service that exports the data from database into an excel and then send it as an attachment in a mail.

I have set the timer that windows service needs to send it on Mon and Thursday.

I am facing an issue in the filename now..as in the file gets saved as 'C://abc.xlsx' in first call but in second call it says that it cannot acess the file 'C://abc.xlsx'.
I want that in second run the excel should be saved with a different name say 'C://abc_date.xlsx' where date is the current date on which the fresh excel is generated.

Can some help pls.

Thanks

Posted 15-Feb-11 18:30pm

Aksh@169

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**JF2015** · Answer 1 · 2011-02-15T18:41:00

Solution 1

Hi,

you could just rename the filename before saving with this code:

C#

string fileName = "C:\\abc.xlsx";
string renamedFile = Path.GetFileNameWithoutExtension(fileName);
renamedFile = renamedFile += "_" + DateTime.Now.ToShortDateString() + Path.GetExtension(fileName);
MessageBox.Show(renamedFile);

Posted 15-Feb-11 18:41pm

JF2015

Comments

Sergey Alexandrovich Kryukov 16-Feb-11 0:54am

Simple as that, 5,
--SA

Aksh@169 16-Feb-11 1:21am

Thanks for your help but I am getting an error which is as below:- Microsoft Office Excel cannot access the file 'test_2/16/2011.xlsx'. There are several possible reasons: • The file name or path does not exist. • The file is being used by another program. • The workbook you are trying to save has the same name as a currently open workbook. Could not find a part of the path 'C:\Windows\system32\test_2\16\2011.xlsx'. The code i have written is as below:
string filepath, filename, fileExcel, renamedfile;
filepath = "C:\\test";
filename = filepath + @"\test.xlsx";
renamedfile = Path.GetFileNameWithoutExtension(filename);
renamedfile = renamedfile += "_" + DateTime.Now.ToShortDateString() + Path.GetExtension(filename);

----logic for generating excel
excelWorkbook.SaveCopyAs(renamedfile);

Any suggestions for this?

JF2015 16-Feb-11 1:38am

Hi,

for this issue, you can try this modified solution:
string fileName = "C:\\abc.xlsx";
string renamedFile = Path.GetFileNameWithoutExtension(fileName);
renamedFile = Path.GetPathRoot(fileName) + renamedFile + "_" + DateTime.Now.ToString("dd.MM.yyyy") + Path.GetExtension(fileName);
MessageBox.Show(renamedFile);
This fixes your issue for me. I hope it helps.

Aksh@169 16-Feb-11 2:21am

Thanks..it worked this way:)

I am also looking for one more thing if you could suggest something.

I intend to delete the obsolete excels(say last 10 excels) stored at the location specified due to size issue.
Can you please help in this?