How to add current date after the log file name using XML

Question

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I want to add the current date to my log file name as Log20210817.txt I am using c# app and if an error occurred then output the log file with current date.

What I have tried:

XML

<configuration>
<appSettings>
  <add key="logPath" value="C:\Temp\log"current dateTime".txt" />
</appSettings>
</configuration>

Posted 16-Aug-21 20:22pm

Damith Asanka

Updated 17-Aug-21 3:44am

PIEBALDconsult

v2

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Richard MacCutchan · Accepted Answer · 2021-08-16T22:08:00

Solution 1

You could make the logPath field into a format string like:

XML

<add key="logPath" value="C:\Temp\log{0}.txt" />

Then you just need something like:

C#

string logPath = // the key from the XML
string fullPath = string.Format(logPath, DateTime.Now.ToString("yyyyMMdd"));

Posted 16-Aug-21 22:08pm

Richard MacCutchan