The PivotDrillDownDataSource object is returned by the CreateDrillDownDataSource method, provided by the PivotGrid control. The method overloads allow you to obtain a list of the records which are used to calculate summaries for individual cells.
The PivotDrillDownDataSource class implements the System.Collections.IList interface, so the data returned by the CreateDrillDownDataSource method can easily be displayed in a grid control (XtraGrid or DataGrid).
Use the DevExpress.XtraPivotGrid.PivotGridControl.CreateDrillDownDataSource method to access the underlying data for a cell. In addition, the CreateDrillDownDataSource method is accessible:
Individual rows in the PivotDrillDownDataSource are represented by PivotDrillDownDataRow objects.
Use the CreateDrillDownDataSource method to retrieve the underlying data in OLAP mode.
The following example shows how to display the records from the control's underlying data source which correspond to a particular cell. A new form that displays these records is opened when a particular cell in the PivotGrid control is double-clicked.
In the example the DevExpress.XtraPivotGrid.PivotGridControl.CellDoubleClick event is handled. The PivotCellEventArgsBase<TField, TData, TCustomTotal>.CreateDrillDownDataSource method is called to obtain the list of records associated with the clicked cell.
The following image shows a sample PivotGrid control which is bound to the Invoices table in the nwind.mdb database:
Clicking the third cell in the 1994 column will invoke the following form:
It lists all the orders made in 1994 by Belgian customers.
| C# |
using DevExpress.XtraPivotGrid;
private void pivotGridControl1_CellDoubleClick(object sender, PivotCellEventArgs e) {
Form form = new Form();
form.Text = "Records";
DataGrid grid = new DataGrid();
grid.Parent = form;
grid.Dock = DockStyle.Fill;
grid.DataSource = e.CreateDrillDownDataSource();
form.Bounds = new Rectangle(100, 100, 500, 400);
form.ShowDialog();
form.Dispose();
}
|
| VB |
Imports DevExpress.XtraPivotGrid
Private Sub pivotGridControl1_CellDoubleClick(ByVal sender As Object, _
ByVal e As PivotCellEventArgs) Handles pivotGridControl1.CellDoubleClick
Dim form As Form = New Form
form.Text = "Records"
Dim grid As DataGrid = New DataGrid
grid.Parent = form
grid.Dock = DockStyle.Fill
grid.DataSource = e.CreateDrillDownDataSource()
form.Bounds = New Rectangle(100, 100, 500, 400)
form.ShowDialog()
form.Dispose()
End Sub
|
System.Object
PivotDataSource
PivotDrillDownDataSource