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Devart.Common Namespace / DbDataTable Class / Active Property

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    Active Property (DbDataTable)
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    Gets or sets whether a DbDataTable is filled with data from a data source.
    Public Property Active As Boolean
    public bool Active {get; set;}

    Property Value

    true if a DbDataTable is populated with data from a data source; otherwise, false. The default value is false.
    Set Active property to true to populate the DbDataTable with the data returned from executing SelectCommand. Setting the property to false clears the data and frees the resources allocated on the server, if any.
    This sample shows how to use DbDataTable. The routine accepts DbTable-compatible object and IDbCommand implementor object as parameters. After SQL query text has been set the data is retrieved from the table.
    static void UseDataTable(DbDataTable myDataTable, DbCommand myCommand)
      myCommand.CommandText = "SELECT * FROM Test.Dept";
      myDataTable.SelectCommand = myCommand;
            myDataTable.FetchAll = true;
        myDataTable.Active = true;
        foreach(DataRow myRow in myDataTable.Rows)
          foreach(DataColumn myCol in myDataTable.Columns)
        myDataTable.Active = false;
    Public Sub UseDataTable(ByVal myDataTable As DbDataTable, ByVal myCommand As DbCommand)
      myCommand.CommandText = "SELECT * FROM Test.Dept"
      myDataTable.SelectCommand = myCommand
            myDataTable.FetchAll = True
        myDataTable.Active = True
        Dim myRow As DataRow
        Dim myCol As DataColumn
        For Each myRow In myDataTable.Rows
          For Each myCol In myDataTable.Columns
            Console.Write(myRow(myCol) & Chr(9))
          Next myCol
        Next myRow
        myDataTable.Active = False
      End Try
    End Sub

    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