PivotGridField.AreaIndex Property
Gets or sets the field’s index among the other fields displayed within the same area. This is a dependency property.
Namespace: DevExpress.Xpf.PivotGrid
Assembly: DevExpress.Xpf.PivotGrid.v23.2.dll
NuGet Package: DevExpress.Wpf.PivotGrid
Declaration
Property Value
| Type | Description |
|---|---|
| Int32 | A zero-based integer that specifies the field’s index among the other fields displayed within the same area. |
Remarks
A field can be placed within one of four areas: Filter Header Area, Column Header Area, Row Header Area or Data Header Area. The AreaIndex property specifies the field’s index among the other fields displayed within the same area.
If the current field is hidden, assigning a positive value to the AreaIndex property makes the field visible. If the field is visible, assigning a negative value to this property will hide the field and will set its AreaIndex property to -1.
Use the PivotGridField.Area property to specify the area in which the field is displayed. The field’s position can also be set via the PivotGridField.SetAreaPosition method.
Dragging a field from one area to another automatically changes the AreaIndex property’s value, and vice versa. Before the field’s location is changed, the DXPivotGrid fires the PivotGridControl.FieldAreaChanging event, allowing you to cancel the action. After the location has been changed, the PivotGridControl.FieldAreaChanged event is fired.
Multiple fields can be combined into a group via the PivotGridControl.Groups property. These fields cannot be separated and are always dragged together. To move a group to a specific area or to a new position within the current area, use the PivotGridField.Area and AreaIndex properties of the first field in the group. Modifying the PivotGridField.Area and AreaIndex properties for the second and subsequent fields in the group is ignored.
Example
The following example demonstrates how to bind the PivotGridControl to a “SalesPerson” view in the nwind.mdb database, which ships with the installation.
Follow the steps below to connect the Pivot Grid to a database.
- Create an OleDbConnection object and specify the connection string in its constructor.
- Create an
OleDbDataAdapterinstance to select records from the data source. - Create a new
DataSetobject and populate it with data. - Use the PivotGridControl.DataSource property to assign the resulting data source to the Pivot Grid.
Follow the steps below to create and configure Pivot Grid fields.
- Create a PivotGridField object and add it to the PivotGridControl.Fields collection.
- Specify the field’s area and position within this area. For this, use the PivotGridFieldBase.Area and
PivotGridField.AreaIndexproperties.AreaIndexcan be set only after the field is added to the control’s field collection. - Create a DataSourceColumnBinding object for each field.
- Set the DataSourceColumnBinding.ColumnName property to the name of the column in the data source. The Pivot Grid fields obtain their values from columns in the data source.
- Assign the
DataSourceColumnBindingobject to the field’s PivotGridField.DataBinding property.
Note that if you want to see an example of how to add pivot grid fields in XAML, please refer to the following tutorial: How to: Bind a PivotGrid to an MS Access Database.
using System.Data;
using System.Data.OleDb;
using System.Windows;
using DevExpress.Xpf.PivotGrid;
namespace HowToBindToMDB {
public partial class MainWindow : Window {
public MainWindow() {
InitializeComponent();
}
private void Window_Loaded(object sender, RoutedEventArgs e) {
// Create a connection object.
OleDbConnection connection =
new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=NWIND.MDB");
// Create a data adapter.
OleDbDataAdapter adapter =
new OleDbDataAdapter("SELECT * FROM SalesPerson", connection);
// Create and fill a dataset.
DataSet sourceDataSet = new DataSet();
adapter.Fill(sourceDataSet, "SalesPerson");
// Assign the data source to the PivotGrid control.
pivotGridControl1.DataSource = sourceDataSet.Tables["SalesPerson"];
pivotGridControl1.DataProcessingEngine = DataProcessingEngine.Optimized;
pivotGridControl1.BeginUpdate();
// Create a row pivot grid field bound to the Country data source column.
PivotGridField fieldCountry = new PivotGridField();
fieldCountry.Caption = "Country";
fieldCountry.Area = FieldArea.RowArea;
DataSourceColumnBinding countryBinding = new DataSourceColumnBinding("Country");
fieldCountry.DataBinding = countryBinding;
// Create a row pivot grid field bound to the Sales Person data source column.
PivotGridField fieldCustomer = new PivotGridField();
fieldCustomer.Caption = "Customer";
fieldCustomer.Area = FieldArea.RowArea;
DataSourceColumnBinding customerBinding = new DataSourceColumnBinding("Sales Person");
fieldCustomer.DataBinding = customerBinding;
// Create a column pivot grid field bound to the OrderDate data source column.
PivotGridField fieldYear = new PivotGridField();
fieldYear.Caption = "Year";
fieldYear.Area = FieldArea.ColumnArea;
DataSourceColumnBinding fieldOrderDate1Binding = new DataSourceColumnBinding("OrderDate");
fieldOrderDate1Binding.GroupInterval = FieldGroupInterval.DateYear;
fieldYear.DataBinding = fieldOrderDate1Binding;
// Create a column pivot grid field bound to the CategoryName data source column.
PivotGridField fieldCategoryName = new PivotGridField();
fieldCategoryName.Caption = "Product Category";
fieldCategoryName.Area = FieldArea.ColumnArea;
DataSourceColumnBinding categoryNameBinding = new DataSourceColumnBinding("CategoryName");
fieldCategoryName.DataBinding = categoryNameBinding;
// Create a filter pivot grid field bound to the ProductName data source column.
PivotGridField fieldProductName = new PivotGridField();
fieldProductName.Caption = "Product Name";
fieldProductName.Area = FieldArea.FilterArea;
DataSourceColumnBinding productNameBinding = new DataSourceColumnBinding("ProductName");
fieldProductName.DataBinding = productNameBinding;
// Create a data pivot grid field bound to the 'Extended Price' data source column.
PivotGridField fieldExtendedPrice = new PivotGridField();
fieldExtendedPrice.Area = FieldArea.DataArea;
DataSourceColumnBinding extendedPriceBinding = new DataSourceColumnBinding("Extended Price");
fieldExtendedPrice.DataBinding = extendedPriceBinding;
// Specify the formatting setting to format summary values as integer currency amount.
fieldExtendedPrice.CellFormat = "c0";
// Add the fields to the control's field collection.
pivotGridControl1.Fields.AddRange(fieldCountry, fieldCustomer,
fieldCategoryName, fieldProductName, fieldYear, fieldExtendedPrice);
// Arrange the row fields within the Row Header Area.
fieldCountry.AreaIndex = 0;
fieldCustomer.AreaIndex = 1;
// Arrange the column fields within the Column Header Area.
fieldCategoryName.AreaIndex = 0;
fieldYear.AreaIndex = 1;
pivotGridControl1.EndUpdate();
}
}
}
Run the project and see the result:
Related GitHub Examples
The following code snippets (auto-collected from DevExpress Examples) contain references to the AreaIndex property.
Note
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