I'd like to be able to log message information in a database, and I'm trying to decide how best to do that. Is it possible to configure the WCF logging mechanisms to write to a database instead of a file? Thanks.

解决方案

You need to have two things:

a proper config to enable .NET tracing

a trace listener to capture the trace messages and store them in a database

For #1:

You need to turn on tracing in WCF first - you need an entry in that enables tracing:

logEntireMessage="true"

logMalformedMessages="false"

logMessagesAtServiceLevel="true"

logMessagesAtTransportLevel="false"

maxMessagesToLog="300000"

maxSizeOfMessageToLog="200000"/>

Next, you need to configure .NET tracing as such:

switchValue="Information, ActivityTracing"

propagateActivity="true">

Here, instead of the WebTraceListener, or other pre-defined listeners, you can also plug in your own database-oriented trace listener.

For #2:

You can - of course - write your own SqlTraceListener - or you can use one of the many ready-made solutions out there, for instance this one here (download the code from Codeplex).