Accessing another projects app.config properties?

问题

I have two projects within my solution, for this example I will call them project A and B.

Project B references A. Can Project B access the app.config properties of project A?

I wish to access an app key string within the app.config of A.

string tfsUri = ConfigurationManager.AppSettings["TfsUri"];

回答1:

That's generally not a good idea, as you introduce hard dependencies between the projects. So if you can copy-paste config value, that will make your projects self-contained (however, this introduces duplication of config value).

You can also automate this, so that when you build a project the configuration dependency is automatically resolved.

Having-said this, there are other options, and in each case you may prefer to use something else. Your other options are:

Use configuration transformation, like SlowCheetah
Add whole config file from one project to another "as a link"
Inject configuration value to your class (instead of reading it from config)
Read other project's config file in runtime, by using things like ConfigurationManager.OpenExeConfiguration
Also check out How to select different app.config for several build configurations

回答2:

       var path = @"C:\Users\Stephen\source\repos\SensurityConfigurationTool\Configuration.UI\App.config";
        string directory = Path.GetDirectoryName(path);
        var pathRoot = Path.GetPathRoot(directory);
        string file = Path.GetFileName(path);


        ExeConfigurationFileMap fileMap = new ExeConfigurationFileMap
        {
            ExeConfigFilename = Path.Combine(Path.GetFullPath(directory + "\\" + file))
        };

        System.Configuration.Configuration config = ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);

You basically get the relative path, then convert this to an absolute path

来源：https://stackoverflow.com/questions/22785541/accessing-another-projects-app-config-properties

标签

configuration

app-config

configurationmanager