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CalculatedField.DataMember Property

Specifies the data member of the calculated field.

Namespace: DevExpress.XtraReports.UI

Assembly: DevExpress.XtraReports.v24.1.dll

NuGet Package: DevExpress.Reporting.Core


public override string DataMember { get; set; }

Property Value

Type Description

A String containing a calculated field’s data member.


To allow a calculated field to get access to data fields available in a data source, specify the CalculatedField.DataSource and DataMember properties. Following that, you can refer to these data fields from within the calculated field’s CalculatedField.Expression.

To learn more, see Calculated Fields Overview.


This example demonstrates how to create a calculated field at runtime, and bind the field to the report control’s Text property.

using DevExpress.XtraReports.UI;
using DevExpress.XtraReports.Configuration;
// ...
// Create a report.
XtraReport1 report = new XtraReport1();

// Create a calculated field 
// and add it to the report's collection.
CalculatedField calcField = new CalculatedField();

// Specify the calculated field's properties.
calcField.DataSource = report.DataSource;
calcField.DataMember = report.DataMember;
calcField.FieldType = FieldType.Double;
calcField.DisplayName = "Calculated Field";
calcField.Name = "myField";
calcField.Expression = "[UnitPrice] * [UnitsInStock]";

// Bind the label's Text property to the calculated field.
report.FindControl("xrlabel3", true).ExpressionBindings
            .Add(new ExpressionBinding() {
                EventName = "BeforePrint",
                PropertyName = "Text",
                Expression = "FormatString('{0:c2}', [myField])"

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the DataMember property.


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See Also