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WebConfigurationManager.ConnectionStrings Property

Gets the Web site's connection strings.

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

public static ConnectionStringSettingsCollection ConnectionStrings { get; }

Property Value

Type: System.Configuration.ConnectionStringSettingsCollection
A ConnectionStringSettingsCollection object that contains the contents of the ConnectionStringsSection object for the current Web application's default configuration.


A valid ConnectionStringSettingsCollection object could not be retrieved.

The following example shows how to use the ConnectionStrings property to access configuration information and enumerate the results. To access a specific connection string, use the returned ConnectionStringSettingsCollection with the name of the desired connection string as an indexer.

        // Show the use of the ConnectionString property
        // to get the connection strings.
        static void GetConnectionStrings()

            // Get the connectionStrings key,value pairs collection.
            ConnectionStringSettingsCollection connectionStrings =
                as ConnectionStringSettingsCollection;

            // Get the collection enumerator.
            IEnumerator connectionStringsEnum =

            // Loop through the collection and 
            // display the connectionStrings key, value pairs.
            int i = 0;
            Console.WriteLine("[Display connectionStrings]");
            while (connectionStringsEnum.MoveNext())
                string name = connectionStrings[i].Name;
                Console.WriteLine("Name: {0} Value: {1}",
                name, connectionStrings[name]);
                i += 1;


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

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.