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ConfigurationSectionCollection.Keys Property

Gets the keys to all ConfigurationSection objects contained in this ConfigurationSectionCollection object.

Namespace:  System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)

public override NameObjectCollectionBase..::..KeysCollection Keys { get; }

Property Value

Type: System.Collections.Specialized.NameObjectCollectionBase.KeysCollection
A NameObjectCollectionBase.KeysCollection object that contains the keys of all sections in this collection.

The following example shows how to use the Keys property.


        static void GetKeys()
        {

            try
            {
                System.Configuration.Configuration config =
                ConfigurationManager.OpenExeConfiguration(
                ConfigurationUserLevel.None);

                ConfigurationSectionCollection sections =
                    config.Sections;


                foreach (string key in sections.Keys)
                {


                    Console.WriteLine(
                     "Key value: {0}", key);
                }


            }
            catch (ConfigurationErrorsException err)
            {
                Console.WriteLine(err.ToString());
            }
        }



.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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