Close Method (DB2DataReader)

In This Topic

Syntax

Visual Basic
C#

'Declaration
 
Public Overrides Sub Close()

public override void Close()

Remarks

You must explicitly call the Close method after you have finished working with the DB2DataReader in order to use the associated DB2Connection for any other purpose.

Example

The following example creates a DB2Connection, a DB2Command, and a DB2DataReader. The example reads through the data, writing it out to the console. Finally, the example closes the DB2DataReader, then the DB2Connection.

csharp

public void ReadMyData(string myConnString)
{
  string mySelectQuery = "SELECT DeptNo, DName FROM Dept";
  DB2Connection db2Connection = new DB2Connection(myConnString);
  DB2Command db2Command = new DB2Command(mySelectQuery,db2Connection);
  db2Connection.Open();
  DB2DataReader db2Reader;
  db2Reader = db2Command.ExecuteReader();
  // Always call Read before accessing data.
  while (db2Reader.Read()) {
    Console.WriteLine(db2Reader.GetInt32(0) + ", " + db2Reader.GetString(1));
  }
  // always call Close when done reading.
  db2Reader.Close();
  // Close the connection when done with it.
  db2Connection.Close();
}

Visual Basic

Public Sub ReadMyData(myConnString As String)
  Dim mySelectQuery As String = "SELECT DeptNo, DName FROM Dept"
  Dim db2Connection As New DB2Connection(myConnString)
  Dim db2Command As New DB2Command(mySelectQuery, db2Connection)
  db2Connection.Open()
  Dim db2Reader As DB2DataReader
  db2Reader = db2Command.ExecuteReader()
  ' Always call Read before accessing data.
  While db2Reader.Read()
    Console.WriteLine(db2Reader.GetInt32(0).ToString() + ", " _
      + db2Reader.GetString(1))
  End While
  ' always call Close when done reading.
  db2Reader.Close()
  ' Close the connection when done with it.
  db2Connection.Close()
End Sub

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

DB2DataReader Class
DB2DataReader Members
DB2Connection Class
DB2Command Class

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