Namespace:
System.Configuration
Assembly:
System.Configuration (in System.Configuration.dll)
Visual Basic (Declaration)
<ConfigurationCollectionAttribute(GetType(ConnectionStringSettings))> _
Public NotInheritable Class ConnectionStringSettingsCollection _
Inherits ConfigurationElementCollection
Dim instance As ConnectionStringSettingsCollection
[ConfigurationCollectionAttribute(typeof(ConnectionStringSettings))]
public sealed class ConnectionStringSettingsCollection : ConfigurationElementCollection
[ConfigurationCollectionAttribute(typeof(ConnectionStringSettings))]
public ref class ConnectionStringSettingsCollection sealed : public ConfigurationElementCollection
public final class ConnectionStringSettingsCollection extends ConfigurationElementCollection
A ConnectionStringSettingsCollection object contains a collection of ConnectionStringSettings objects. Each ConnectionStringSettings object represents a single entry in the <connectionStrings> configuration-file section.
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
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>
System..::.Object
System.Configuration..::.ConfigurationElement
System.Configuration..::.ConfigurationElementCollection
System.Configuration..::.ConnectionStringSettingsCollection
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
Reference
Other Resources