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From: Tony Johansson on 23 Feb 2010 06:12
Hi!

In this program I add a custom section called LabSection that inherit from
ConfigurationSection to the configuration file.
When I run the program from the command line prompt the new custom section
LabSection is added to the
configuration file which is correct.
But when I run from within VS everything seems to work perfectly except that
the configuration file is now updated.

So my first question is why does it work perfect from the command line
prompt but not from within VS ?

My second question is


class Program
{
private static void WriteSettings()
{
LabSection labSec;
Configuration config =
ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

if (config.Sections["LabSection"] == null)
{
labSec = new LabSection();
config.Sections.Add("LabSection", labSec);
labSec.SectionInformation.ForceSave = true;
labSec.FirstName = "Karl";
labSec.LastName = "Otto";
config.Save(ConfigurationSaveMode.Full);

ConfigurationSectionCollection csc = config.Sections;

foreach(string s in config.Sections.Keys)
{
Console.WriteLine(s);
}
}
}

static void Main(string[] args)
{
WriteSettings();
}
}

public class LabSection : ConfigurationSection
{
[ConfigurationProperty("LastName", IsRequired = false, DefaultValue =
"NotGiven")]
public string LastName
{
get { return (string)base["LastName"]; }
set { base["LastName"] = value; }
}

[ConfigurationProperty("FirstName", IsRequired = false, DefaultValue =
"NotGiven")]
public string FirstName
{
get { return (string)base["FirstName"]; }
set { base["FirstName"] = value; }
}
}

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="Foo" value="Hello World"/>
</appSettings>
</configuration>



You can use an object of the ConfigurationSectionCollection class to read
all the configuration sections in a configuration file. The
ConfigurationSectionCollection class consists of the objects of the
ConfigurationSection class. The ConfigurationSectionCollection class items
can be accessed through the collection iterator. You can use the item
property of the ConfigurationSectionCollection class to access the objects
of the ConfigurationSection class.


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