Create a Pie Chart in VSTO and Aspose.Cells

This article compares how to create a pie chart using Office Automation and VSTO to using Aspose.Cells for .NET. The steps for creating a pie chart are:

1. Creating a workbook and worksheet.
2. Adding sample data.
3. Referencing productsChart.
4. Adding a pie chart, defining the data range and chart title.
5. Saving spreadsheet. The code samples in this article show how to add a pie chart with VSTO, using either C#, compared to creating one with Aspose.Cells, again using either C#.

VSTO

 private void PieChart()

{

//Instantiate the Application object.

Excel.Application ExcelApp = Application;

//Add a Workbook.

Excel.Workbook objBook = ExcelApp.Workbooks.Add(System.Reflection.Missing.Value);

// Access a Vsto Worksheet

Microsoft.Office.Interop.Excel.Worksheet nativeWorksheet = Globals.ThisAddIn.Application.ActiveWorkbook.ActiveSheet;

Microsoft.Office.Tools.Excel.Worksheet sheet = Globals.Factory.GetVstoObject(nativeWorksheet);

//Add sample data for pie chart

//Add headings in A1 and B1

sheet.Cells[1, 1] = "Products";

sheet.Cells[1, 2] = "Users";

//Add data from A2 till B4

sheet.Cells[2, 1] = "Aspose.Cells";

sheet.Cells[2, 2] = 10000;

sheet.Cells[3, 1] = "Aspose.Slides";

sheet.Cells[3, 2] = 8000;

sheet.Cells[4, 1] = "Aspose.Words";

sheet.Cells[4, 2] = 12000;

//Chart reference

Microsoft.Office.Tools.Excel.Chart productsChart;

//Add a Pie Chart

productsChart = sheet.Controls.AddChart(0, 105, 330, 200, "ProductUsers");

productsChart.ChartType = Microsoft.Office.Interop.Excel.XlChartType.xlPie;

//Set chart title

productsChart.HasTitle = true;

productsChart.ChartTitle.Text = "Users";

//Gets the cells that define the data to be charted.

Microsoft.Office.Interop.Excel.Range chartRange = sheet.get_Range("A2", "B4");

productsChart.SetSourceData(chartRange, missing);

//Access the Active workbook from Vsto sheet

Microsoft.Office.Interop.Excel.Workbook workbook = sheet.Application.ActiveWorkbook;

//Save the copy of workbook as OutputVsto.xlsx

workbook.SaveCopyAs("OutputVsto.xlsx");

}

Aspose.Cells

 private static void PieChart()

{

	//Create Aspose.Cells Workbook

	Workbook workbook = new Workbook();

	//Access Aspose.Cells Worksheet

	Worksheet sheet = workbook.Worksheets[0];

	//Add sample data for pie chart

	//Add headings in A1 and B1

	sheet.Cells["A1"].PutValue("Products");

	sheet.Cells["B1"].PutValue("Users");

	//Add data from A2 till B4

	sheet.Cells["A2"].PutValue("Aspose.Cells");

	sheet.Cells["B2"].PutValue(10000);

	sheet.Cells["A3"].PutValue("Aspose.Slides");

	sheet.Cells["B3"].PutValue(8000);

	sheet.Cells["A4"].PutValue("Aspose.Words");

	sheet.Cells["B4"].PutValue(12000);

	//Chart reference

	Chart productsChart;

	//Add a Pie Chart

	int chartIdx = sheet.Charts.Add(ChartType.Pie, 7, 0, 20, 6);

	productsChart = sheet.Charts[chartIdx];

	//Gets the cells that define the data to be charted

	int seriesIdx = productsChart.NSeries.Add("=Sheet1!$B$2:$B$4", true);

	Series nSeries = productsChart.NSeries[seriesIdx];

	nSeries.XValues = "=Sheet1!$A$2:$A$4";

	//Set chart title

	productsChart.Title.Text = "Users";

	//Autofit first column

	sheet.AutoFitColumn(0);

	//Save the copy of workbook as OutputAspose.xlsx

	workbook.Save("OutputAspose.xlsx");

}

Download Sample Code

• Github
• Sourceforge
• Bitbucket