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Devart.Data.SQLite Namespace / SQLiteDataReader Class / Close Method
Example

In This Topic
    Close Method (SQLiteDataReader)
    In This Topic
    Closes the SQLiteDataReader object.
    Syntax
    'Declaration
     
    Public Overrides Sub Close() 
    public override void Close()
    Remarks
    You must explicitly call the Close method after you have finished working with the SQLiteDataReader in order to use the associated SQLiteConnection for any other purpose.
    Example
    The following example creates a SQLiteConnection, a SQLiteCommand, and a SQLiteDataReader. The example reads through the data, writing it out to the console. Finally, the example closes the SQLiteDataReader, then the SQLiteConnection.
    public void ReadMyData(string myConnString)
    {
      string mySelectQuery = "SELECT DeptNo, DName FROM Dept";
      SQLiteConnection sqConnection = new SQLiteConnection(myConnString);
      SQLiteCommand sqCommand = new SQLiteCommand(mySelectQuery,sqConnection);
      sqConnection.Open();
      SQLiteDataReader sqReader;
      sqReader = sqCommand.ExecuteReader();
      // Always call Read before accessing data.
      while (sqReader.Read()) {
        Console.WriteLine(sqReader.GetInt32(0) + ", " + sqReader.GetString(1));
      }
      // always call Close when done reading.
      sqReader.Close();
      // Close the connection when done with it.
      sqConnection.Close();
    }
    Public Sub ReadMyData(myConnString As String)
      Dim mySelectQuery As String = "SELECT DeptNo, DName FROM Dept"
      Dim sqConnection As New SQLiteConnection(myConnString)
      Dim sqCommand As New SQLiteCommand(mySelectQuery, sqConnection)
      sqConnection.Open()
      Dim sqReader As SQLiteDataReader
      sqReader = sqCommand.ExecuteReader()
      ' Always call Read before accessing data.
      While sqReader.Read()
        Console.WriteLine(sqReader.GetInt32(0).ToString() + ", " _
          + sqReader.GetString(1))
      End While
      ' always call Close when done reading.
      sqReader.Close()
      ' Close the connection when done with it.
      sqConnection.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

    See Also