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ConnectionStringSettingsCollection Class

Contains a collection of ConnectionStringSettings objects.

Namespace:  System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)
[ConfigurationCollectionAttribute(typeof(ConnectionStringSettings))]
public sealed class ConnectionStringSettingsCollection : ConfigurationElementCollection

A ConnectionStringSettingsCollection object contains a collection of ConnectionStringSettings objects. Each ConnectionStringSettings object represents a single entry in the <connectionStrings> configuration-file section.

TopicLocation
How to: Access SQL Server Using Predetermined CredentialsBuilding ASP .NET Web Applications
How to: Read Connection Strings from the Web.config FileConfiguring ASP .NET Web Applications
How to: Read Connection Strings from the Web.config FileConfiguring ASP .NET Web Applications
How to: Access SQL Server Using Predetermined CredentialsBuilding ASP .NET Web Applications

The following example shows how to access the ConnectionStringSettingsCollection.

static void ShowConnectionStrings()
{
     // Get the application configuration file.
    System.Configuration.Configuration config =
            ConfigurationManager.OpenExeConfiguration(
            ConfigurationUserLevel.None);

    // Get the conectionStrings section.
    ConnectionStringsSection csSection =
        config.ConnectionStrings;

    for (int i = 0; i < 
        ConfigurationManager.ConnectionStrings.Count; i++)
    {
        ConnectionStringSettings cs = 
            csSection.ConnectionStrings[i];

        Console.WriteLine("  Connection String: \"{0}\"",
            cs.ConnectionString);

        Console.WriteLine("#{0}", i);
        Console.WriteLine("  Name: {0}", cs.Name);


        Console.WriteLine("  Provider Name: {0}", 
            cs.ProviderName);

    }

}

The following example is an excerpt from the configuration file used by the previous example.

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <connectionStrings>
    <add name="ConnStr1" connectionString="LocalSqlServer: data source=127.0.0.1;Integrated Security=SSPI;Initial Catalog=aspnetdb"
      providerName="System.Data.SqlClient" />
  </connectionStrings>
</configuration>
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

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