如何在NLog.Config中使用来自不同类的变量？

Question

I have a Class with a static field which holds a path.

public static class PfadSammlung
{
    public static string Path_Example = @"C:\temp";
}

How could I use this path in the NLog.Config file to specify the file name for the target?

<targets>
    <target xsi:type="File"
        name ="processInfo"
        fileName="C:\temp\ProcessInfoLog.log"
        layout="${longdate}  |  ProcessInfo: ${message}"
    />
</targets>

Any help would be greatly appreciated.

Answer 1

Basically you need to configure NLog from code. See the offical documentation for details and sample code.

Update

As Julian pointed out, you can also use variables in you config XML. Details can be found here .

Sample

Config file:

<variable name="logDirectory" value="c:\temp" />
<targets>
    <target xsi:type="File"
        name ="processInfo"
        fileName="${var:logDirectory}"
        layout="${longdate}  |  ProcessInfo: ${message}"
    />
</targets>

Code:

LogManager.Configuration.Variables["logDirectory"] = @"c:\temp\logs";