SqlCeConnection.Open Method

Opens a database connection with the property settings specified by the ConnectionString.

Namespace: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (in system.data.sqlserverce.dll)

Syntax

'Declaration
Public Overrides Sub Open
'Usage
Dim instance As SqlCeConnection

instance.Open

public override void Open ()

public:
virtual void Open () override

public void Open ()

public override function Open ()

Not applicable.

Exceptions

Exception type	Condition
InvalidOperationException	The connection is already open.
SqlCeException	A connection-level error occurred while opening the connection.

Remarks

This method establishes a new connection to the data source.

Note

If the SqlCeConnection goes out of scope, it is not closed. You must explicitly close the connection by calling Close or Dispose.

Example

The following example creates a SqlCeConnection, opens it, executes a query, and then closes the connection.

Dim conn As SqlCeConnection = Nothing

Try
    conn = New SqlCeConnection("Data Source = MyDatabase.sdf; Password ='<pwd>'")
    conn.Open()

    Dim cmd As SqlCeCommand = conn.CreateCommand()
    cmd.CommandText = "INSERT INTO Customers ([Customer ID], [Company Name]) Values('NWIND', 'Northwind Traders')"

    cmd.ExecuteNonQuery()
Finally
    conn.Close()
End Try

SqlCeConnection conn = null;

try
{
    conn = new SqlCeConnection("Data Source = MyDatabase.sdf; Password ='<pwd>'");
    conn.Open();

    SqlCeCommand cmd = conn.CreateCommand();
    cmd.CommandText = "INSERT INTO Customers ([Customer ID], [Company Name]) Values('NWIND', 'Northwind Traders')";

    cmd.ExecuteNonQuery();
}
finally
{
    conn.Close();
}

Platforms

Windows CE, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows XP Professional x64 Edition, Windows XP SP2

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

Version Information

.NET Framework

Supported in: 3.0

.NET Compact Framework

Supported in: 2.0, 1.0

See Also

Reference

SqlCeConnection Class
SqlCeConnection Members
System.Data.SqlServerCe Namespace
Close