To Write Log (txt) file with auto identity no in c#

Question

2.00/5 (1 vote)

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I have a txt file like this in my project

Sample O/p :

30/12/2014 11:59:53
Barcode->'4987168011306' with package ->'Unit' is in Active Promotion for Branch 'DMCurepipe,ESPACE'

30/12/2014 11:59:53
Barcode->'6091230334014' with package ->'Unit' is in Active Promotion for Branch 'DMCurepipe,ESPACE'

I need auto identity no like 1,2,3 etc

Expected O/p :

30/12/2014 11:59:53
1)Barcode->'4987168011306' with package ->'Unit' is in Active Promotion for Branch 'DMCurepipe,ESPACE'

30/12/2014 11:59:53
2)Barcode->'6091230334014' with package ->'Unit' is in Active Promotion for Branch 'DMCurepipe,ESPACE'

i have created a new txt file to write a log and very next line i need to write error log with unique no just like 1,2,3 etc...i didn't use any loop to write auto no how to accomplish this???

Posted 29-Dec-14 23:36pm

pradeepbliss

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Comments

BillWoodruff 30-Dec-14 5:50am

Not enough information here to assist you: are you writing whenever there is an error, or writing the log at some regular interval ?

Is this WinForms, WPF ?

What stops you now from having a static integer variable that keeps track of the current count of log entries and writing the value of that variable into the log ?

pradeepbliss 30-Dec-14 6:08am

winform, i cant assign static interger variable because based upon some conidition i am writing to log file

BillWoodruff 30-Dec-14 9:13am

I think to assist you we'll need to see some of the code you are using. Why can't you use some kind of a variable to insert an ID number into the Log ?

CLilium 30-Dec-14 9:22am

If you are just calling and event to log to the file it would be better to make a logger class for this job. Once you have just make a private property for counting and add it into the input. As far as I know there is no auto identity in c# like in DBs.

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dev_assault · Accepted Answer · 2014-12-30T03:11:00

cant u do like
int i = 1;
and each time u write u pass it to the writeline and then increment.

something like
//have this in some method
streamwriter sw;
sw.WriteLine(String.Format("{0} \r\n {1} {2} \r\n", DateTime.Now, i, *whatever u wanna write to the file*));
//and then increment here
i++;