How to Change Pie Chart Datapoint Color in WinForms Presentation?
The PowerPoint framework is a feature rich .NET PowerPoint class library that can be used by developers to create, read, edit and convert PowerPoint files to PDF and images programmatically without Office or interop dependencies.
Steps to change each datapoint color for Pie chart in the Presentation document:
- Create a new C# console application project.
- Install the Syncfusion.Presentation.WinForms NuGet package as a reference to your .NET Framework applications from NuGet.org
- Include the following namespace in the Program.cs file.
C#
using Syncfusion.Presentation; using Syncfusion.OfficeChart; using System.Drawing;
VB.NET
Imports Syncfusion.Presentation Imports Syncfusion.OfficeChart Imports System.Drawing
- Use the following code example to change each datapoint color for Pie chart in the Presentation document
C#
//Create a Presentation instance
IPresentation pptxDoc = Presentation.Create();
//Add a blank slide to the Presentation
ISlide slide = pptxDoc.Slides.Add(SlideLayoutType.Blank);
//Add chart to the slide with position and size
IPresentationChart chart = slide.Charts.AddChart(100, 10, 700, 500);
//Set chart type
chart.ChartType = OfficeChartType.Pie;
//Set chart title
chart.ChartTitle = "Best Selling Products";
chart.ChartTitleArea.FontName = "Calibri";
chart.ChartTitleArea.Size = 14;
//Set data for chart
chart.ChartData.SetValue(1, 1, "");
chart.ChartData.SetValue(1, 2, "Sales");
chart.ChartData.SetValue(2, 1, "Phyllis Lapin");
chart.ChartData.SetValue(2, 2, 141.396);
chart.ChartData.SetValue(3, 1, "Stanley Hudson");
chart.ChartData.SetValue(3, 2, 80.368);
chart.ChartData.SetValue(4, 1, "Bernard Shah");
chart.ChartData.SetValue(4, 2, 71.155);
chart.ChartData.SetValue(5, 1, "Patricia Lincoln");
chart.ChartData.SetValue(5, 2, 47.234);
chart.ChartData.SetValue(6, 1, "Camembert Pierrot");
chart.ChartData.SetValue(6, 2, 46.825);
chart.ChartData.SetValue(7, 1, "Thomas Hardy");
chart.ChartData.SetValue(7, 2, 42.593);
chart.ChartData.SetValue(8, 1, "Hanna Moos");
chart.ChartData.SetValue(8, 2, 41.819);
chart.ChartData.SetValue(9, 1, "Alice Mutton");
chart.ChartData.SetValue(9, 2, 32.698);
chart.ChartData.SetValue(10, 1, "Christina Berglund");
chart.ChartData.SetValue(10, 2, 29.171);
chart.ChartData.SetValue(11, 1, "Elizabeth Lincoln");
chart.ChartData.SetValue(11, 2, 25.696);
//Create a new chart series with the name “Sales”
IOfficeChartSerie pieSeries = chart.Series.Add("Sales");
pieSeries.Values = chart.ChartData[2, 2, 11, 2];
//set the color for each data point in the pie chart
pieSeries.DataPoints[0].DataFormat.Fill.ForeColor = Color.DarkSlateBlue;
pieSeries.DataPoints[1].DataFormat.Fill.ForeColor = Color.CadetBlue;
pieSeries.DataPoints[2].DataFormat.Fill.ForeColor = Color.Red;
//Set data label
pieSeries.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
pieSeries.DataPoints.DefaultDataPoint.DataLabels.Position = OfficeDataLabelPosition.Outside;
//Set background color
chart.ChartArea.Fill.ForeColor = Color.FromArgb(242, 242, 242);
chart.PlotArea.Fill.ForeColor = Color.FromArgb(242, 242, 242);
chart.ChartArea.Border.LinePattern = OfficeChartLinePattern.None;
//Set category labels
chart.PrimaryCategoryAxis.CategoryLabels = chart.ChartData[2, 1, 11, 1];
//Save the document
pptxDoc.Save("Output.pptx");
//Close the document
pptxDoc.Close();
VB.NET
'Create a Presentation instance
Dim pptxDoc As IPresentation = Presentation.Create()
'Add a blank slide to the Presentation
Dim slide As ISlide = pptxDoc.Slides.Add(SlideLayoutType.Blank)
'Add chart to the slide with position and size
Dim chart As IPresentationChart = slide.Charts.AddChart(100, 10, 700, 500)
'Set chart type
chart.ChartType = OfficeChartType.Pie
'Set chart title
chart.ChartTitle = "Best Selling Products"
chart.ChartTitleArea.FontName = "Calibri"
chart.ChartTitleArea.Size = 14
'Set data for chart
chart.ChartData.SetValue(1, 1, "")
chart.ChartData.SetValue(1, 2, "Sales")
chart.ChartData.SetValue(2, 1, "Phyllis Lapin")
chart.ChartData.SetValue(2, 2, 141.396)
chart.ChartData.SetValue(3, 1, "Stanley Hudson")
chart.ChartData.SetValue(3, 2, 80.368)
chart.ChartData.SetValue(4, 1, "Bernard Shah")
chart.ChartData.SetValue(4, 2, 71.155)
chart.ChartData.SetValue(5, 1, "Patricia Lincoln")
chart.ChartData.SetValue(5, 2, 47.234)
chart.ChartData.SetValue(6, 1, "Camembert Pierrot")
chart.ChartData.SetValue(6, 2, 46.825)
chart.ChartData.SetValue(7, 1, "Thomas Hardy")
chart.ChartData.SetValue(7, 2, 42.593)
chart.ChartData.SetValue(8, 1, "Hanna Moos")
chart.ChartData.SetValue(8, 2, 41.819)
chart.ChartData.SetValue(9, 1, "Alice Mutton")
chart.ChartData.SetValue(9, 2, 32.698)
chart.ChartData.SetValue(10, 1, "Christina Berglund")
chart.ChartData.SetValue(10, 2, 29.171)
chart.ChartData.SetValue(11, 1, "Elizabeth Lincoln")
chart.ChartData.SetValue(11, 2, 25.696)
'Create a new chart series with the name “Sales”
Dim pieSeries As IOfficeChartSerie = chart.Series.Add("Sales")
pieSeries.Values = chart.ChartData(2, 2, 11, 2)
'set the color for each data point in the pie chart
pieSeries.DataPoints(0).DataFormat.Fill.ForeColor = Color.DarkSlateBlue
pieSeries.DataPoints(1).DataFormat.Fill.ForeColor = Color.CadetBlue
pieSeries.DataPoints(2).DataFormat.Fill.ForeColor = Color.Red
'Set data label
pieSeries.DataPoints.DefaultDataPoInteger.DataLabels.IsValue = True
pieSeries.DataPoints.DefaultDataPoInteger.DataLabels.Position = OfficeDataLabelPosition.Outside
'Set background color
chart.ChartArea.Fill.ForeColor = Color.FromArgb(242, 242, 242)
chart.PlotArea.Fill.ForeColor = Color.FromArgb(242, 242, 242)
chart.ChartArea.Border.LinePattern = OfficeChartLinePattern.None
'Set category labels
chart.PrimaryCategoryAxis.CategoryLabels = chart.ChartData(2, 1, 11, 1)
'Save the document
pptxDoc.Save("Output.pptx")
'Close the document
pptxDoc.Close()
A complete working sample to change scatter chart marker color for each data points in Presentation using C# can be downloaded from here
By executing the program, you will get the output Word document as follows.
Explore more about the rich set of Syncfusion® PowerPoint Framework features.
Starting with v16.2.0.x, if you reference Syncfusion® assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to the link to learn about generating and registering a Syncfusion® license key in your application to use the components without trail message.
Conclusion
I hope you enjoyed learning about how to change pie chart datapoint color in WinForms Presentation.
You can refer to our WinForms Presentation feature tour page to know about its other groundbreaking feature representations. You can also explore our WinForms Presentation documentation to understand how to create and manipulate data. You can also explore our WinForms Presentation example to understand how to create and manipulate data.
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 forums, Direct-Trac, or feedback portal. We are always happy to assist you!
