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POHow to record log info to flat file + Event Log
 

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  1. POHow to record log info to flat file + Event Log
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    <p>I have a 3rd-party app that logs (verbosely) to the users' Appdata folder. I'd like to augment that behavior to also record Errors to the EventLog. How can I accomplish this? Note that the app's source code is not available; I can only modify the .config file.</p> <p>Here's the original .config file. It logs verbosely to a .log file:</p> <pre><code>&lt;system.diagnostics&gt; &lt;switches&gt; &lt;add name="Default" value="Verbose"/&gt; &lt;/switches&gt; &lt;trace autoflush="true" indentsize="4"&gt; &lt;listeners&gt; &lt;add name="CPLog" type="ClientApp.Common.Logging.MultiProcessFileTraceListener, ClientApp.Common, Version=9.1.0.0, Culture=neutral, PublicKeyToken=c583c5a4dddb9a96" initializeData="@(LocalApplicationData)\ClientApp\cpwin.log" /&gt; &lt;remove name="Default" /&gt; &lt;/listeners&gt; &lt;/trace&gt; &lt;/system.diagnostics&gt; </code></pre> <p>Here's what I tried (added another switch and another listener. EventLog gets written if I set its switch to Verbose, but nothing gets ever written when set to Error (even when errors occur):</p> <pre><code>&lt;system.diagnostics&gt; &lt;switches&gt; &lt;add name="Default" value="Verbose"/&gt; &lt;add name="EventLog" value="Error"/&gt; &lt;/switches&gt; &lt;trace autoflush="true" indentsize="4"&gt; &lt;listeners&gt; &lt;add name="CPLog" type="ClientApp.Common.Logging.MultiProcessFileTraceListener, ClientApp.Common, Version=9.1.0.0, Culture=neutral, PublicKeyToken=c583c5a4dddb9a96" initializeData="@(LocalApplicationData)\ClientApp\cpwin.log" /&gt; &lt;add name="EventLog" type="System.Diagnostics.EventLogTraceListener" initializeData="Client Info" /&gt; &lt;remove name="Default" /&gt; &lt;/listeners&gt; &lt;/trace&gt; &lt;/system.diagnostics&gt; </code></pre> <p>How could I accomplish this?</p>
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    1. USMark Maslar
    1. USMark Maslar
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    1. COWhat sort of app is this? If it is a web app, often the system account doesn't have the permissions to create a new event log, and sometimes doesn't have permissions to write to an existing event log (say Application). I'd check to see if you can get a textwriter working & logging to the same folder/different file, and then try the event log. ref http://msdn.microsoft.com/en-us/library/sk36c28t.aspx
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      1. POHow to record log info to flat file + Event Log
      1. USMatthewMartin
    2. COThis is a fat-client app. .exe.config. It isn't a permissions issue; it does write entries to the event log when the EventLog switch is set to Verbose -- just not when it is set to Error.
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      1. POHow to record log info to flat file + Event Log
      1. USMark Maslar
 

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