corelibraries-devexpress-dot-sparkline-935738ba.md
The base class for sparkline views.
Namespace : DevExpress.Sparkline
Assembly : DevExpress.Sparkline.v25.2.Core.dll
NuGet Package : DevExpress.Sparkline.Core
public abstract class SparklineViewBase :
IXtraSupportShouldSerialize,
ISparklineInfo
Public MustInherit Class SparklineViewBase
Implements IXtraSupportShouldSerialize,
ISparklineInfo
The following members return SparklineViewBase objects:
| Library | Related API Members |
|---|---|
| Cross-Platform Class Library | SparklineViewBase.CreateView(SparklineViewType) |
| WinForms Controls | RepositoryItemSparklineEdit.View |
| .NET Reporting Tools | XRSparkline.View |
Each sparkline view is represented by the SparklineViewBase class descendant. To assign a specific view for a sparkline, set the required view to the RepositoryItemSparklineEdit.View property.
This example demonstrates how to create a sparkline control, fill it with data, choose the way to represent this data, and customize the sparkline appearance.
To do this, you should create a SparklineEdit object and assign the datasource object to its BaseEdit.EditValue property. Then, you need to set the appropriate view instance to the SparklineEdit.Properties.View property and customize view properties to meet your requirements.
Note that in this sample, the AreaSparklineView class is used to display area sparklines. To display other sparklines types, use the BarSparklineView, LineSparklineView or WinLossSparklineView classes instead.
using System;
using System.Drawing;
using System.Windows.Forms;
using DevExpress.Sparkline;
using DevExpress.XtraEditors;
private SparklineEdit CreateSparkline() {
// Create a Sparkline editor and set its dock style.
SparklineEdit sparkline = new SparklineEdit();
sparkline.Dock = DockStyle.Fill;
sparkline.EditValue = CreateData();
// Create an Area view and assign it to the sparkline.
AreaSparklineView view = new AreaSparklineView();
sparkline.Properties.View = view;
// Customize area appearance.
view.Color = Color.Aqua;
view.AreaOpacity = 50;
// Show markerks.
view.HighlightStartPoint = true;
view.HighlightEndPoint = true;
view.HighlightMaxPoint = true;
view.HighlightMinPoint = true;
view.HighlightNegativePoints = true;
view.SetSizeForAllMarkers(10);
return sparkline;
}
private double[] CreateData() {
return new double[] { 2, 4, 5, 1, -1, -2, -1, 2, 4, 5, 6, 3, 5, 4, 8, -1, 6 };
}
Imports System
Imports System.Drawing
Imports System.Windows.Forms
Imports DevExpress.Sparkline
Imports DevExpress.XtraEditors
Private Function CreateSparkline() As SparklineEdit
' Create a Sparkline editor and set its dock style.
Dim sparkline As New SparklineEdit()
sparkline.Dock = DockStyle.Fill
sparkline.EditValue = CreateData()
' Create an Area view and assign it to the sparkline.
Dim view As New AreaSparklineView()
sparkline.Properties.View = view
' Customize area appearance.
view.Color = Color.Aqua
view.AreaOpacity = 50
' Show markerks.
view.HighlightStartPoint = True
view.HighlightEndPoint = True
view.HighlightMaxPoint = True
view.HighlightMinPoint = True
view.HighlightNegativePoints = True
view.SetSizeForAllMarkers(10)
Return sparkline
End Function
Private Function CreateData() As Double()
Return New Double() { 2, 4, 5, 1, -1, -2, -1, 2, 4, 5, 6, 3, 5, 4, 8, -1, 6 }
End Function
Object SparklineViewBase BarSparklineViewBase
See Also