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How do I specify different colors for each data point in a column series?

2 mins read

 

The color of each of the columns (points) in a Column Chart can be changed by handling the PrepareStyle event of the series

.

C#

series.PrepareStyle += new ChartPrepareStyleInfoHandler(this.ChartControlSeries_PrepareStyle);
protected void ChartControlSeries_PrepareStyle(object sender, ChartPrepareStyleInfoEventArgs args)
{
ChartSeries series = sender as ChartSeries;
int r, g, b;
switch(args.Index)
{
case 0:
r = 222;b=245;g=123;
break;
default:
r = 222;b=245;g=123;
break;
}
if(series != null)
{
args.Style.Interior = new BrushInfo(GradientStyle.None,Color.Black,Color.FromArgb(r,g,b ) );
args.Handled = true;
}
}
VB
AddHandler series.PrepareStyle, AddressOf ChartControlSeries_PrepareStyle
Protected Sub ChartControlSeries_PrepareStyle(ByVal sender As Object, ByVal args As ChartPrepareStyleInfoEventArgs)
Dim series As ChartSeries = CType(IIf(TypeOf sender Is ChartSeries, sender, Nothing), ChartSeries)
Dim r, g, b As Integer
Select Case args.Index
Case 0
  r = 222
  b=245
  g=123
Case Else
  r = 222
  b=245
  g=123
 End Select
If Not series Is Nothing Then
args.Style.Interior = New BrushInfo(GradientStyle.None,Color.Black,Color.FromArgb(r,g,b))
args.Handled = True
End If
End Sub

Note

A new version of Essential Studio for ASP.NET is available. Versions prior to the release of Essential Studio 2014, Volume 2 will now be referred to as a classic versions.The new ASP.NET suite is powered by Essential Studio for JavaScript providing client-side rendering of HTML 5-JavaScript controls, offering better performance, and better support for touch interactivity. The new version includes all the features of the old version, so migration is easy.

The Classic controls can be used in existing projects; however, if you are starting a new project, we recommend using the latest version of Essential Studio for ASP.NET. Although Syncfusion will continue to support all Classic Versions, we are happy to assist you in migrating to the newest edition.

For current customers, you can check out our components from the License and Downloads page. If you are new to Syncfusion, you can try our 30-day free trial to check out our other controls. If you have any queries or require clarifications, please let us know in the comments section below.

You can also contact us through our support forumsDirect-Trac, or feedback portal. We are always happy to assist you!

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