A calculated field that allows you to apply complex expressions to data fields obtained from the data source.
Namespace: DevExpress.DashboardCommon
Assembly: DevExpress.Dashboard.v18.2.Core.dll
public class CalculatedField :
INamedItem,
INameContainer,
ISupportPrefixPublic Class CalculatedField
Implements INamedItem,
INameContainer,
ISupportPrefixDevExpress Dashboard allows you to create calculated fields for the following data source types.
To manage calculated fields of the specified data source, use the CalculatedFields property (for instance, DashboardSqlDataSource.CalculatedFields for SQL data sources or DashboardExcelDataSource.CalculatedFields for Excel data sources).
To learn more about calculated fields, see the following topics.
The following code snippet shows how to create a new calculated field based on the values of the 'UnitPrice' and 'Discount' data fields, and add it to the existing DashboardSqlDataSource.
using DevExpress.DashboardCommon;
//...
CalculatedField priceWithDiscount = new CalculatedField("[UnitPrice] * (1 - [Discount])");
priceWithDiscount.DataMember = "SalesPerson";
priceWithDiscount.Name = "Price with discount";
sqlDataSource.CalculatedFields.Add(priceWithDiscount);
Imports DevExpress.DashboardCommon
'...
Dim priceWithDiscount As New CalculatedField("[UnitPrice] * (1 - [Discount])")
priceWithDiscount.DataMember = "SalesPerson"
priceWithDiscount.Name = "Price with discount"
sqlDataSource.CalculatedFields.Add(priceWithDiscount)