DataSourceValues Class

Represents a dictionary containing values from a chart’s data source for a particular argument.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v18.1.dll

Declaration

C#

public class DataSourceValues :
    DataSourceValuesCore

VB.NET

Public Class DataSourceValues
    Inherits DataSourceValuesCore

Remarks

An object of the DataSourceValues type is, among other settings of the SummaryFunction delegate, passed to the ChartControl.RegisterSummaryFunction method as a parameter, to provide access to data source values when calculating a custom summary function.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the DataSourceValues class.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-create-a-custom-summary-function-e368/CS/Form1.cs#L49

// Declare the Product summary function.
private static SeriesPoint[] CalcProductValue(Series series, object argument, string[] functionArguments, DataSourceValues[] values, object[] colors)
{

how-to-filter-points-in-a-chartcontrol-series-by-using-filtercontrol-e2340/CS/Form1.cs#L14

private static SeriesPoint[] FilterData(Series series, object argument, string[] functionArguments, DataSourceValues[] values, object[] colors)
{

how-to-register-and-use-a-custom-summary-function-t257050/CS/RegisterSummaryFunctionExample/Form1.cs#L15

string[] functionArguments,
DataSourceValues[] values,
object[] colors) {

how-to-register-and-use-a-custom-summary-function-t257661/CS/RegisterSummaryFunctionExample/MainForm.aspx.cs#L15

string[] functionArguments,
DataSourceValues[] values,
object[] colors) {

VB.NET

how-to-create-a-custom-summary-function-e368/VB/Form1.vb#L47

' Declare the Product summary function.
Private Shared Function CalcProductValue(ByVal series As Series, ByVal argument As Object, ByVal functionArguments() As String, ByVal values() As DataSourceValues, ByVal colors() As Object) As SeriesPoint()

how-to-filter-points-in-a-chartcontrol-series-by-using-filtercontrol-e2340/VB/Form1.vb#L16

Private Shared Function FilterData(ByVal series As Series, ByVal argument As Object, ByVal functionArguments() As String, ByVal values() As DataSourceValues, ByVal colors() As Object) As SeriesPoint()
    Dim list As New List(Of SeriesPoint)()

how-to-register-and-use-a-custom-summary-function-t257050/VB/RegisterSummaryFunctionExample/Form1.vb#L13

' Declare the Financial summary function.
Private Shared Function CalculateProductValue(ByVal series As Series, ByVal argument As Object, ByVal functionArguments() As String, ByVal values() As DataSourceValues, ByVal colors() As Object) As SeriesPoint()

how-to-register-and-use-a-custom-summary-function-t257661/VB/RegisterSummaryFunctionExample/MainForm.aspx.vb#L13

' Declare the Product summary function.
Private Shared Function CalculateProductValue(ByVal series As Series, ByVal argument As Object, ByVal functionArguments() As String, ByVal values() As DataSourceValues, ByVal colors() As Object) As SeriesPoint()

Inheritance

Object

SortedDictionary<String, Object>

DevExpress.Charts.Native.DataSourceValuesCore

DataSourceValues