Updating system.diagnostics section in config file

Hi

Can anyone help me with how to update the system.diagnostics section of an application configuration file?

Specifically I want to be able to update the trace switch levels held in the config file from code.

Here is the format of the app.config:



 
 
 
 
 
 
 
 
 
 
 
 
 


I want to be able to update the TsMain and TsInit trace levels from code using the System.Configuration namespace rather than directly manipulating the xml through code.

I tried:Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);
ConfigurationSection systemDiagnostics = config.GetSection("system.diagnostics");
But I cannot access the key value pairs for the switches. What I want to do is something like:
systemDiagnostics.Switches.Key["TsMain"].Value = 2;

Any help with this greatfully received.