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ConfigurationManager.ConnectionStrings Property

Gets the ConnectionStringsSection data for the current application's default configuration.

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

public static ConnectionStringSettingsCollection ConnectionStrings { get; }

Property Value

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

A ConnectionStringsSection object contains the contents of the configuration file's connectionStrings section.

The following code example shows how to use the ConnectionStrings property.


// Get the ConnectionStrings section.        
// This function uses the ConnectionStrings 
// property to read the connectionStrings
// configuration section.
public static void ReadConnectionStrings()
{

  // Get the ConnectionStrings collection.
  ConnectionStringSettingsCollection connections =
      ConfigurationManager.ConnectionStrings;

  if (connections.Count != 0)
  {
    Console.WriteLine();
    Console.WriteLine("Using ConnectionStrings property.");
    Console.WriteLine("Connection strings:");

    // Get the collection elements.
    foreach (ConnectionStringSettings connection in 
      connections)
    {
      string name = connection.Name;
      string provider = connection.ProviderName;
      string connectionString = connection.ConnectionString;

      Console.WriteLine("Name:               {0}", 
        name);
      Console.WriteLine("Connection string:  {0}", 
        connectionString);
     Console.WriteLine("Provider:            {0}", 
        provider);
    }
  }
  else
  {
    Console.WriteLine();
    Console.WriteLine("No connection string is defined.");
    Console.WriteLine();
  }
}


.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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