ExpressionDataBinding Class

Defines a calculation based on a string expression.

Namespace: DevExpress.XtraPivotGrid

Assembly: DevExpress.XtraPivotGrid.v20.2.dll

NuGet Package: DevExpress.Win.PivotGrid

Declaration

C#

public class ExpressionDataBinding :
    ExpressionBindingBase

VB.NET

Public Class ExpressionDataBinding
    Inherits ExpressionBindingBase

Remarks

To bind a PivotGrid field to the result of the calculation, do the following:

1. Create an instance of the ExpressionDataBinding class.
2. Specify the expression.
3. Assign the ExpressionDataBinding instance to the PivotGridField.DataBinding property.

Example

The following code snippet illustrates the use of the Data Binding API:

Note

The complete sample project is available in the DevExpress Demo Center: Code Examples - Intermediate Level Aggregations (Optimized Mode) - Grouping by Year of First Sale module in the XtraPivotGrid MainDemo.

C#

pivotGridControl.OptionsData.DataProcessingEngine = PivotDataProcessingEngine.Optimized;
PivotGridField yearOfFirstSale = new PivotGridField()
{
    Area = PivotArea.RowArea,
    AreaIndex = 0,
    Caption = "Year of first sale"
};
yearOfFirstSale.DataBinding = new ExpressionDataBinding()
{
    Expression = "Aggr(Min(GetYear([OrderDate])), [Country])"
};
yearOfFirstSale.Options.ShowTotals = false;
pivotGridControl.Fields.Add(yearOfFirstSale);

VB.NET

pivotGridControl.OptionsData.DataProcessingEngine = PivotDataProcessingEngine.Optimized
Dim yearOfFirstSale As New PivotGridField()
yearOfFirstSale.Area = PivotArea.RowArea
yearOfFirstSale.AreaIndex = 0
yearOfFirstSale.Caption = "Year of first sale"
Dim newExpressionDataBinding As New ExpressionDataBinding()
newExpressionDataBinding.Expression = "Aggr(Min(GetYear([OrderDate])), [Country])"
yearOfFirstSale.DataBinding = newExpressionDataBinding
yearOfFirstSale.Options.ShowTotals = False
pivotGridControl.Fields.Add(yearOfFirstSale)

Inheritance

Object

DataBindingBase

ExpressionBindingBase

ExpressionDataBinding