Open Method (DB2Connection)

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Opens a DB2 connection with the property settings specified by the ConnectionString.

Syntax

Visual Basic
C#


'Declaration Public Overrides Sub Open()


public override void Open()

Remarks

The DB2Connection draws an open connection from the connection pool if one is available. Otherwise, it establishes a new connection to the data source.

Note: If the DB2Connection goes out of scope, the connection it represents does not close automatically. Therefore, you must explicitly close the connection by calling Close.

Opening an open connection does nothing.

Example

The following example creates a DB2Connection, opens it, displays some of its properties, and then closes the connection.

csharp


public void CreateDB2Connection(string myConnString) { DB2Connection db2Connection = new DB2Connection(myConnString); db2Connection.Open(); MessageBox.Show("ServerVersion: " + db2Connection.ServerVersion + "\nState: " + db2Connection.State.ToString()); db2Connection.Close(); }

public void CreateDB2Connection(string myConnString)
{
  DB2Connection db2Connection = new DB2Connection(myConnString);
  db2Connection.Open();
  MessageBox.Show("ServerVersion: " + db2Connection.ServerVersion
    + "\nState: " + db2Connection.State.ToString());
  db2Connection.Close();
}

Visual Basic


Public Sub CreateDB2Connection(myConnString As String) Dim db2Connection As New DB2Connection(myConnString) db2Connection.Open() MessageBox.Show("ServerVersion: " + db2Connection.ServerVersion _ + ControlChars.Cr + "State: " + db2Connection.State.ToString()) db2Connection.Close() End Sub

Public Sub CreateDB2Connection(myConnString As String)
  Dim db2Connection As New DB2Connection(myConnString)
  db2Connection.Open()
  MessageBox.Show("ServerVersion: " + db2Connection.ServerVersion _
    + ControlChars.Cr + "State: " + db2Connection.State.ToString())
  db2Connection.Close()
End Sub

Reference

DB2Connection Class
DB2Connection Members
Close Method

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