Public Overrides Sub ChangeDatabase ( _
    database As String _
)

Dim instance As SqlConnection
Dim database As String

instance.ChangeDatabase(database)

public override void ChangeDatabase(
    string database
)

public:
virtual void ChangeDatabase(
    String^ database
) override

public override function ChangeDatabase(
    database : String
)

Implements

The value supplied in the database parameter must be a valid database name. The database parameter cannot contain a null value, an empty string, or a string with only blank characters.

When you are using connection pooling against SQL Server 2000, and you close the connection, it is returned to the connection pool. The next time the connection is retrieved from the pool used, the reset connection request piggybacks on the first round trip to the server and executes before the user performs any operations. From the time that you return a connection to the connection pool after calling the ChangeDatabase method, until the time the connection is retrieved, the connection remains active on the database. This prevents you from dropping the database because the connection is still active.

The following example creates a SqlConnection and displays some of its read-only properties.

Private Sub ChangeSqlDatabase(ByVal connectionString As String)
    ' Assumes connectionString represents a valid connection string
    ' to the AdventureWorks sample database.
    Using connection As New SqlConnection(connectionString)

        connection.Open()
        Console.WriteLine("ServerVersion: {0}", connection.ServerVersion)
        Console.WriteLine("Database: {0}", connection.Database)

        connection.ChangeDatabase("Northwind")
        Console.WriteLine("Database: {0}", connection.Database)
    End Using
End Sub

private static void ChangeSqlDatabase(string connectionString)
{
    // Assumes connectionString represents a valid connection string
    // to the AdventureWorks sample database.
    using (SqlConnection connection = new SqlConnection(connectionString))
    {
        connection.Open();
        Console.WriteLine("ServerVersion: {0}", connection.ServerVersion);
        Console.WriteLine("Database: {0}", connection.Database);

        connection.ChangeDatabase("Northwind");
        Console.WriteLine("Database: {0}", connection.Database);
    }
}

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

.NET Framework

.NET Compact Framework

Reference

Other Resources