Read custom config file using custom config classes?

Question

There are several questions about reading custom config files but none of them address using custom config sections. Here is a section from my app.config:

<configuration>
    <configSections>
        <section name="DatabaseConfigSection" type="Bootstrapper.DatabaseConfig, Bootstrapper" />
    </configSections>
    <DatabaseConfigSection>
        <Configuration>
            <Databases>
                <Database name="Database_Dev" environment="Dev"/>
                <Database name="Database_RC" environment="RC"/>
                <Database name="Database_Cloud" environment=""/>
            </Databases>
        </Configuration>
    </DatabaseConfigSection>
</configuration>

And I have a custom config class that allows me to code against it like this:

DatabaseConfig.Instance.Configuration.Databases.Cast<Database>().Select(x => x.Name).ToArray();

I want to have another, optional config file with the same structure as my app.config file above and I want to use my custom config class against it. For example, something like this:

ConfigurationManager.Use("otherConfigFile.config");
var new dbConfig = ConfigurationManager.GetSection(SectionSectionName) as DatabaseConfig;
dbConfig.Databases.Cast<Database>().Select(x => x.Name).ToArray();

And have it return the data from "otherConfigFile.config" as a DatabaseConfig object. However, I can't find a way to make ConfigurationManager.GetSection() point to a different file. Thanks!

sirdank · Accepted Answer · 2015-12-28 16:08:51Z

0

Here's what I ended up doing:

var map = new ExeConfigurationFileMap();
map.ExeConfigFilename = @"C:\Users\sirdank\project\bootstrapper\bin\Debug\test.config";
System.Configuration.Configuration config = ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
DatabaseConfig dbConfig = config.GetSection("DatabaseConfigSection") as DatabaseConfig;

Put together with the help of MSDN

answered Dec 28, 2015 at 16:08

sirdank

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1 Comment

Erik Funkenbusch Over a year ago

You would be far better off using config transforms, rather than putting all environments in one config.

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