SparklineEdit.PointValueMember Property

Specifies the name of a binding for data point values.

Namespace: DevExpress.Xpf.Editors

Assembly: DevExpress.Xpf.Core.v18.2.dll

Declaration

C#

public string PointValueMember { get; set; }

VB.NET

Public Property PointValueMember As String

Property Value

Type	Description
String	A String value.

Remarks

The SparklineEdit.PointArgumentMember and PointValueMember properties together define how to generate data points for a sparkline.

Example

This example demonstrates how to provide data for a standalone SparklineEdit control and adjust its main properties.

Note

A complete sample project is available at https://github.com/DevExpress-Examples/how-to-create-a-sparkline-control-e4982.

MainWindow.xaml

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:dxe="http://schemas.devexpress.com/winfx/2008/xaml/editors"
        xmlns:System="clr-namespace:System;assembly=mscorlib"
        x:Class="SparklineEdit.MainWindow"
        Title="MainWindow" Height="228" Width="525" WindowStartupLocation="CenterScreen">
    <Window.Resources>
        <System:String x:Key="Limit1">01/02/2000</System:String>
        <System:String x:Key="Limit2">01/07/2000</System:String>
    </Window.Resources>
    <Grid x:Name="grid">
        <dxe:SparklineEdit EditValue="{Binding SourceCollection}" 
                           PointValueMember="ValueColumn" PointArgumentMember="ArgumentColumn" >
            <dxe:SparklineEdit.PointArgumentRange>
                <dxe:Range Auto="False"
                    Limit1="{Binding Source={StaticResource ResourceKey=Limit1}}" 
                    Limit2="{Binding Source={StaticResource ResourceKey=Limit2}}" />
            </dxe:SparklineEdit.PointArgumentRange>
            <dxe:SparklineEdit.StyleSettings>
                <dxe:AreaSparklineStyleSettings 
                    LineWidth="3"
                    AreaOpacity="0.5"
                    ShowMarkers="True" 

                    MarkerSize="3"
                    MaxPointMarkerSize="10"
                    MinPointMarkerSize="9"
                    StartPointMarkerSize="8"
                    EndPointMarkerSize="7"
                    NegativePointMarkerSize="6"

                    HighlightMaxPoint="True" 
                    HighlightMinPoint="True" 
                    HighlightStartPoint="True"
                    HighlightEndPoint="True"
                    HighlightNegativePoints="True"

                    Brush="DarkBlue"
                    MaxPointBrush="#FFF5DA2A"
                    MinPointBrush="#FF2B0DEA"
                    StartPointBrush="#FF127A0D"
                    EndPointBrush="#FFF71616"
                    NegativePointBrush="#FF9C0404"
                    MarkerBrush="Black" />
            </dxe:SparklineEdit.StyleSettings>
        </dxe:SparklineEdit>
    </Grid>
</Window>

MainWindow.xaml.vb

Imports Microsoft.VisualBasic
Imports System
Imports System.Collections
Imports System.Collections.ObjectModel
Imports System.Windows

Namespace SparklineEdit

    Partial Public Class MainWindow
        Inherits Window

        Private privateSourceCollection As IList
        Public Property SourceCollection() As IList
            Get
                Return privateSourceCollection
            End Get
            Set(ByVal value As IList)
                privateSourceCollection = value
            End Set
        End Property

        Public Sub New()
            InitializeComponent()

            grid.DataContext = Me

            GenerateData(7)
        End Sub

        Private Sub GenerateData(ByVal n As Integer)
            SourceCollection = New ObservableCollection(Of CustomElement)()

            Dim rnd As New Random()
            For i As Integer = 1 To n
                SourceCollection.Add(New CustomElement() With {.ArgumentColumn = New DateTime(2000, 1, i), .ValueColumn = rnd.Next(20), .FilteringColumn = 1})
            Next i


        End Sub
    End Class

    Public Class CustomElement
        Private privateArgumentColumn As Object
        Public Property ArgumentColumn() As Object
            Get
                Return privateArgumentColumn
            End Get
            Set(ByVal value As Object)
                privateArgumentColumn = value
            End Set
        End Property
        Private privateValueColumn As Integer
        Public Property ValueColumn() As Integer
            Get
                Return privateValueColumn
            End Get
            Set(ByVal value As Integer)
                privateValueColumn = value
            End Set
        End Property
        Private privateFilteringColumn As Integer
        Public Property FilteringColumn() As Integer
            Get
                Return privateFilteringColumn
            End Get
            Set(ByVal value As Integer)
                privateFilteringColumn = value
            End Set
        End Property
    End Class


End Namespace

MainWindow.xaml.cs

using System;
using System.Collections;
using System.Collections.ObjectModel;
using System.Windows;

namespace SparklineEdit {

    public partial class MainWindow : Window {

        public IList SourceCollection { get; set; }

        public MainWindow() {
            InitializeComponent();

            grid.DataContext = this;

            GenerateData(7);
        }

        private void GenerateData(int n) {
            SourceCollection = new ObservableCollection<CustomElement>();

            Random rnd = new Random();
            for (int i = 1; i <= n; i++) {
                SourceCollection.Add(new CustomElement() {
                    ArgumentColumn = new DateTime(2000, 1, i),
                    ValueColumn = rnd.Next(20),
                    FilteringColumn = 1
                });
            }


        }
    }

    public class CustomElement {
        public object ArgumentColumn { get; set; }
        public int ValueColumn { get; set; }
        public int FilteringColumn { get; set; }
    }


}

Related GitHub Examples

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

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-sparkline-control-e4982/VB/SparklineEdit/MainWindow.xaml#L14

<dxe:SparklineEdit EditValue="{Binding SourceCollection}"
                   PointValueMember="ValueColumn" PointArgumentMember="ArgumentColumn" >
    <dxe:SparklineEdit.PointArgumentRange>