DataBindingBase Class
Base class of the the Data Binding API. Specifies the source data for the PivotGrid fields in Optimized mode.
Namespace: DevExpress.XtraPivotGrid
Assembly: DevExpress.PivotGrid.v20.1.Core.dll
Declaration
public abstract class DataBindingBase :
INotifyPropertyChanged,
IDesignerContextProviderPublic MustInherit Class DataBindingBase
Implements INotifyPropertyChanged,
IDesignerContextProviderRelated API Members
The following members accept/return DataBindingBase objects:
Remarks
The key concept of the Data Binding API is the data binding source. All functionality related to calculations are encapsulated into the data binding source - the DataBindingBase descendant that is assigned to the field's DataBinding property.
The code snippet below demonstrates how to use the Data Binding API to calculate running totals.
NOTE
The complete sample project is available in the DevExpress Demo Center: Code Examples - Optimized Mode - Field Calculation Bindings module in the XtraPivotGrid MainDemo.
pivotGridControl.OptionsData.DataProcessingEngine = PivotDataProcessingEngine.Optimized;
PivotGridField fieldProductAmount = new PivotGridField() {
Area = PivotArea.DataArea,
Caption = "Product Sales",
Name = "fProductAmount"
};
PivotGridField fieldProductAmountRunningTotal = new PivotGridField {
Area = PivotArea.DataArea,
Caption = "Running Total",
Name = "fRunningTotal"
};
DataSourceColumnBinding productAmountBinding = new DataSourceColumnBinding("ProductAmount");
//Bind a field to a column in the data source.
fieldProductAmount.DataBinding = productAmountBinding;
//Calculate a running summary of the column.
fieldProductAmountRunningTotal.DataBinding = new RunningTotalBinding() {
Source = productAmountBinding,
PartitioningCriteria = CalculationPartitioningCriteria.ColumnValue,
SummaryType = PivotSummaryType.Sum
};
pivotGridControl.Fields.AddRange(new PivotGridField[] { fieldProductAmount, fieldProductAmountRunningTotal });