DateTimeSummaryOptions Class

Date-time summarization options storage.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v20.1.dll

Declaration

public class DateTimeSummaryOptions :
    SummaryOptionsBase,
    IDateTimeSummaryOptions,
    ISummaryOptionsBase
Public Class DateTimeSummaryOptions
    Inherits SummaryOptionsBase
    Implements IDateTimeSummaryOptions,
               ISummaryOptionsBase

Related API Members

The following members accept/return DateTimeSummaryOptions objects:

Remarks

The SeriesBase.DateTimeSummaryOptions property has this type.

The series groups values with more detailed argument values into a collection with the key that has the required precision value. Then, the summary function calculates series points' values by these collections.

Note that the options' DateTimeSummaryOptions.MeasureUnit specifies the most data detail level. And, any options change leads to data reload. Use the AxisBase.DateTimeScaleOptions to display less detail data without data reload.

Examples

This example demonstrates how to use the summary options to configure the date-time data source summarization:

List<SaleItem> dataSource = this.viewModel.GetSaleItems();
this.chartControl.DataSource = dataSource;
SeriesTemplate template = this.chartControl.SeriesTemplate;
template.SeriesDataMember = "Category";
template.ArgumentDataMember = "Company";
template.DateTimeSummaryOptions.MeasureUnit = DateTimeMeasureUnit.Month;
template.DateTimeSummaryOptions.SummaryFunction = "SUM([Income])";
template.View = new StackedBarSeriesView();

Inheritance

See Also