how to join String data type and Integer data type

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CSS

Dim DatePart As String = DateTime.Now.ToString("yyyyMMddhhmmss")

Now result is "20120412092544"
2012= year
04 = month
12 = date
09 = hour
25 = minutes
44= second

I want to use the following format in my Invoice.
Every transaction will increment one by one.
Like that,

Bill NO: 201204120925440001
Bill NO: 201204120925440002
Bill NO: 201204120925440003
Bill NO: 201204120925440004
Bill NO: 201204120925440005
Bill NO: 201204120925440006
Bill NO: 201204120925440007
Bill NO: 201204120925440008
Bill NO: 201204120925440009
Bill NO: 201204120925440010

I think, this format will join String data type & Integer data type. So, I want to know how to join String and Integer.
thz for all answer!!!!

Posted 12-Apr-12 15:33pm

Developer87

Updated 12-Apr-12 15:43pm

Lakamraju Raghuram

v3

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Sergey Alexandrovich Kryukov · Accepted Answer · 2012-04-12T17:45:00

It would be string.Format("{0:yyyyMMddhhmmss}{1:0000}", time, transactionNumber); please learn those formats here:
http://msdn.microsoft.com/en-us/library/system.string.format.aspx[^],
http://msdn.microsoft.com/en-us/library/txafckwd.aspx[^],
http://msdn.microsoft.com/en-us/library/0c899ak8.aspx[^].

I would advice you to improve your transaction ID format somehow, make it more human-readable; at least add some delimiters; and you cannot have more then 10000 transactions. When one thinks that some data will "never ever" exceed some range, it's a good sign that it it might happen pretty soon. After all, remember what happened in the year 2000 :-).

—SA