Markers | ActiveReports 14 .NET Edition

Markers

In This Topic

Show All

Hide All

Use markers to show specific data series values in a chart. Markers are created by setting the Marker property of the series.

Using Markers in a Chart

The following code demonstrates how to create a marker object at run time and assign it to the Marker property of the Series object. The results are shown in the image above.

Visual Basic code. Paste INSIDE the section Format event	Copy Code
' create the marker object Dim marker1 As New GrapeCity.ActiveReports.Chart.Marker ' set the marker properties. marker1.Backdrop = New Chart.Graphics.Backdrop(Chart.Graphics.GradientType.Horizontal, Color.Navy, Color.Black) marker1.Line = New Chart.Graphics.Line(Color.White) marker1.Label = New Chart.LabelInfo(New Chart.Graphics.Line(Color.Transparent, 0, Chart.Graphics.LineStyle.None), New Chart.Graphics.Backdrop(Chart.Graphics.BackdropStyle.Transparent, Color.White, Color.White, _ Chart.Graphics.GradientType.Vertical, System.Drawing.Drawing2D.HatchStyle.DottedGrid, Nothing, _Chart.Graphics.PicturePutStyle.Stretched), New Chart.FontInfo(Color.White, New Font("Arial", 8.0F)), "{Value}", Chart.Alignment.Center) marker1.Size = 24 marker1.Style = Chart.MarkerStyle.Diamond ' assign the marker to the series Marker property Me.ChartControl1.Series(0).Marker = marker1

Visual Basic code. Paste INSIDE the section Format event

Copy Code

' create the marker object
Dim marker1 As New GrapeCity.ActiveReports.Chart.Marker

' set the marker properties.
marker1.Backdrop = New Chart.Graphics.Backdrop(Chart.Graphics.GradientType.Horizontal, Color.Navy, Color.Black)
marker1.Line = New Chart.Graphics.Line(Color.White)
marker1.Label = New Chart.LabelInfo(New Chart.Graphics.Line(Color.Transparent, 0, Chart.Graphics.LineStyle.None),
 New Chart.Graphics.Backdrop(Chart.Graphics.BackdropStyle.Transparent, Color.White, Color.White,
 _ Chart.Graphics.GradientType.Vertical, System.Drawing.Drawing2D.HatchStyle.DottedGrid, Nothing,
 _Chart.Graphics.PicturePutStyle.Stretched),
 New Chart.FontInfo(Color.White, New Font("Arial", 8.0F)), "{Value}", Chart.Alignment.Center)
marker1.Size = 24
marker1.Style = Chart.MarkerStyle.Diamond

' assign the marker to the series Marker property
Me.ChartControl1.Series(0).Marker = marker1

C# code. Paste INSIDE the section Format event	Copy Code
// create the marker object GrapeCity.ActiveReports.Chart.Marker marker1 = new GrapeCity.ActiveReports.Chart.Marker(); // set the marker properties marker1.Backdrop = new GrapeCity.ActiveReports.Chart.Graphics.Backdrop(GrapeCity.ActiveReports.Chart.Graphics.GradientType.Horizontal, System.Drawing.Color.Navy, System.Drawing.Color.Black); marker1.Line = new GrapeCity.ActiveReports.Chart.Graphics.Line(System.Drawing.Color.White); marker1.Label = new GrapeCity.ActiveReports.Chart.LabelInfo(new GrapeCity.ActiveReports.Chart.Graphics.Line (System.Drawing.Color.Transparent, 0, GrapeCity.ActiveReports.Chart.Graphics.LineStyle.None), new GrapeCity.ActiveReports.Chart.Graphics.Backdrop(GrapeCity.ActiveReports.Chart.Graphics.BackdropStyle.Transparent, System.Drawing.Color.White, System.Drawing.Color.White, GrapeCity.ActiveReports.Chart.Graphics.GradientType.Vertical, System.Drawing.Drawing2D.HatchStyle.DottedGrid, null, GrapeCity.ActiveReports.Chart.Graphics.PicturePutStyle.Stretched), new GrapeCity.ActiveReports.Chart.FontInfo(System.Drawing.Color.White, new System.Drawing.Font("Arial", 8F)), "{Value}", GrapeCity.ActiveReports.Chart.Alignment.Center); marker1.Size = 24; marker1.Style = GrapeCity.ActiveReports.Chart.MarkerStyle.Diamond; // assign the marker to the series Marker property this.ChartControl1.Series[0].Marker = marker1;

C# code. Paste INSIDE the section Format event

Copy Code

// create the marker object
GrapeCity.ActiveReports.Chart.Marker marker1 = new GrapeCity.ActiveReports.Chart.Marker();

// set the marker properties
marker1.Backdrop = new GrapeCity.ActiveReports.Chart.Graphics.Backdrop(GrapeCity.ActiveReports.Chart.Graphics.GradientType.Horizontal,
 System.Drawing.Color.Navy, System.Drawing.Color.Black);
marker1.Line = new GrapeCity.ActiveReports.Chart.Graphics.Line(System.Drawing.Color.White);
marker1.Label = new GrapeCity.ActiveReports.Chart.LabelInfo(new GrapeCity.ActiveReports.Chart.Graphics.Line
(System.Drawing.Color.Transparent, 0, GrapeCity.ActiveReports.Chart.Graphics.LineStyle.None),
new GrapeCity.ActiveReports.Chart.Graphics.Backdrop(GrapeCity.ActiveReports.Chart.Graphics.BackdropStyle.Transparent,
 System.Drawing.Color.White, System.Drawing.Color.White, GrapeCity.ActiveReports.Chart.Graphics.GradientType.Vertical,
System.Drawing.Drawing2D.HatchStyle.DottedGrid, null, GrapeCity.ActiveReports.Chart.Graphics.PicturePutStyle.Stretched),
 new GrapeCity.ActiveReports.Chart.FontInfo(System.Drawing.Color.White, new System.Drawing.Font("Arial", 8F)),
 "{Value}", GrapeCity.ActiveReports.Chart.Alignment.Center);
marker1.Size = 24;
marker1.Style = GrapeCity.ActiveReports.Chart.MarkerStyle.Diamond;

// assign the marker to the series Marker property
this.ChartControl1.Series[0].Marker = marker1;