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ConnectionStringSettingsCollection Class

Contains a collection of ConnectionStringSettings objects.

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

'Declaration
<ConfigurationCollectionAttribute(GetType(ConnectionStringSettings))> _
Public NotInheritable Class ConnectionStringSettingsCollection _
	Inherits ConfigurationElementCollection
'Usage
Dim instance As ConnectionStringSettingsCollection

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

The following example shows how to access the ConnectionStringSettingsCollection.

Shared Sub ShowConnectionStrings() 

    ' Get the application configuration file. 
    Dim config _
    As System.Configuration.Configuration = _
    ConfigurationManager.OpenExeConfiguration( _
    ConfigurationUserLevel.None)

    ' Get the conectionStrings section. 
    Dim csSection _
    As ConnectionStringsSection = _
    config.ConnectionStrings

    Dim i As Integer 
    For i = 0 To ConfigurationManager.ConnectionStrings.Count
        Dim cs As ConnectionStringSettings = _
        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)

    Next i

End Sub 'ShowConnectionStrings

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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