Upload a file with date & time

Question

3.00/5 (2 votes)

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Hi all
I have a code to file upload is below

VB

ofdDocToUpload.Filter = "All files (*.*)|*.*"
           If ofdDocToUpload.ShowDialog() = Windows.Forms.DialogResult.Cancel Then
               Exit Sub
           End If
           txtReqDocPath.Text = ofdDocToUpload.FileName

which give the output like that
C:\Documents and Settings\superkings\Desktop\work on_25Jan2011.txt

but now requirement is that datetime should be add before the file name like below
F:\EOSPROJECTS\MCSAdmin\ContactMasterFiles\2011310155114_TestWord35.docx
how can I achieve that please help

Posted 14-Mar-11 21:28pm

IndrajitDasgupat

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2 solutions

Solution 1

When you upload a file, you only transfer its contents, not any attributes, so the time of creation and last modification of the file is lost. You can only use the local server's time at the moment when the file is uploaded. This is not a problem: on download, call the property System.DateTime.Now or System.DateTime.UtcNow, convert it to string using the culture you want and concatenate with the file name where you use it. You need to use format with characters allowed for file name, no '/' characters (replace them with '-' or something like that).

—SA

Posted 14-Mar-11 21:48pm

Sergey Alexandrovich Kryukov

Updated 15-Mar-11 4:33am

v3

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OriginalGriff · Accepted Answer · 2011-03-14T21:50:00

Solution 2

First, get the current date, then prefix it in a formatted manner:

VB

Dim now As DateTime = DateTime.Now
txtReqDocPath.Text = now.ToString("yyyyMMddhhmmss_") + ofdDocToUpload.FileName

You may have to change the format string, I can't see how you get "2011310155114" from yesterdays date!
There is a full list of the format specifiers here: Formatting a DateTime for display - format string description[^]

Posted 14-Mar-11 21:50pm

OriginalGriff

Comments

Sergey Alexandrovich Kryukov 15-Mar-11 10:31am

I guess the format was the problem. My 5.
--SA

Espen Harlinn 15-Mar-11 12:50pm

Nice and simple - my 5