Create a Chart

The code examples below describe the process of adding a simple 3D clustered column chart using VSTO. You create a presentation instance, add a default chart to it. Then use Microsoft Excel workbook to access and modify chart data along with setting chart properties. Lastly, save the presentation.

VSTO

Using VSTO, the following steps are performed:

Create an instance of a Microsoft PowerPoint presentation.
Add a blank slide to the presentation.
Add a 3D clustered column chart and access it.
Create a new Microsoft Excel Workbook instance and load chart data.
Access the chart data worksheet using Microsoft Excel Workbook instance from workbook.
Set the chart range in the worksheet and remove series 2 and 3 from the chart.
Modify the chart category data in the chart data worksheet.
Modify chart series 1 data in the chart data worksheet.
Now, access the chart title and set the font related properties.
Access the chart value axis and set the major unit, minor units, max value and min values.
Access the chart depth or series axis and remove that as in this example, only one serie is used.
Now, set the chart rotation angles in X and Y direction.
Save the presentation.
Close the instances of Microsoft Excel and PowerPoint.


 //Global Variables

public static Microsoft.Office.Interop.PowerPoint.Application objPPT;

public static Microsoft.Office.Interop.PowerPoint.Presentation objPres;

private void ThisAddIn_Startup(object sender, System.EventArgs e)

{

	GEN_VSTO_Chart();

}

public static void GEN_VSTO_Chart()

{


	EnsurePowerPointIsRunning(true, true);

	//Instantiate slide object

	Microsoft.Office.Interop.PowerPoint.Slide objSlide = null;

	//Access the first slide of presentation

	objSlide = objPres.Slides[1];

	//Select firs slide and set its layout

	objSlide.Select();

	objSlide.Layout = Microsoft.Office.Interop.PowerPoint.PpSlideLayout.ppLayoutBlank;

	//Add a default chart in slide

	objSlide.Shapes.AddChart(Microsoft.Office.Core.XlChartType.xl3DColumn, 20F, 30F, 400F, 300F);

	//Access the added chart

	Microsoft.Office.Interop.PowerPoint.Chart ppChart = objSlide.Shapes[1].Chart;

	//Access the chart data

	Microsoft.Office.Interop.PowerPoint.ChartData chartData = ppChart.ChartData;

	//Create instance to Excel workbook to work with chart data

	Microsoft.Office.Interop.Excel.Workbook dataWorkbook = (Microsoft.Office.Interop.Excel.Workbook)chartData.Workbook;

	//Accessing the data worksheet for chart

	Microsoft.Office.Interop.Excel.Worksheet dataSheet = dataWorkbook.Worksheets[1];

	//Setting the range of chart

	Microsoft.Office.Interop.Excel.Range tRange = dataSheet.Cells.get_Range("A1", "B5");

	//Applying the set range on chart data table

	Microsoft.Office.Interop.Excel.ListObject tbl1 = dataSheet.ListObjects["Table1"];

	tbl1.Resize(tRange);

	//Setting values for categories and respective series data

	((Microsoft.Office.Interop.Excel.Range)(dataSheet.Cells.get_Range("A2"))).FormulaR1C1 = "Bikes";

	((Microsoft.Office.Interop.Excel.Range)(dataSheet.Cells.get_Range("A3"))).FormulaR1C1 = "Accessories";

	((Microsoft.Office.Interop.Excel.Range)(dataSheet.Cells.get_Range("A4"))).FormulaR1C1 = "Repairs";

	((Microsoft.Office.Interop.Excel.Range)(dataSheet.Cells.get_Range("A5"))).FormulaR1C1 = "Clothing";

	((Microsoft.Office.Interop.Excel.Range)(dataSheet.Cells.get_Range("B2"))).FormulaR1C1 = "1000";

	((Microsoft.Office.Interop.Excel.Range)(dataSheet.Cells.get_Range("B3"))).FormulaR1C1 = "2500";

	((Microsoft.Office.Interop.Excel.Range)(dataSheet.Cells.get_Range("B4"))).FormulaR1C1 = "4000";

	((Microsoft.Office.Interop.Excel.Range)(dataSheet.Cells.get_Range("B5"))).FormulaR1C1 = "3000";

	//Setting chart title

	ppChart.ChartTitle.Font.Italic = true;

	ppChart.ChartTitle.Text = "2007 Sales";

	ppChart.ChartTitle.Font.Size = 18;

	ppChart.ChartTitle.Font.Color = Color.Black.ToArgb();

	ppChart.ChartTitle.Format.Line.Visible = Microsoft.Office.Core.MsoTriState.msoTrue;

	ppChart.ChartTitle.Format.Line.ForeColor.RGB = Color.Black.ToArgb();

	//Accessing Chart value axis

	Microsoft.Office.Interop.PowerPoint.Axis valaxis = ppChart.Axes(Microsoft.Office.Interop.PowerPoint.XlAxisType.xlValue, Microsoft.Office.Interop.PowerPoint.XlAxisGroup.xlPrimary);

	//Setting values axis units

	valaxis.MajorUnit = 2000.0F;

	valaxis.MinorUnit = 1000.0F;

	valaxis.MinimumScale = 0.0F;

	valaxis.MaximumScale = 4000.0F;

	//Accessing Chart Depth axis

	Microsoft.Office.Interop.PowerPoint.Axis Depthaxis = ppChart.Axes(Microsoft.Office.Interop.PowerPoint.XlAxisType.xlSeriesAxis, Microsoft.Office.Interop.PowerPoint.XlAxisGroup.xlPrimary);

	Depthaxis.Delete();

	//Setting chart rotation

	ppChart.Rotation = 20; //Y-Value

	ppChart.Elevation = 15; //X-Value

	ppChart.RightAngleAxes = false;

	// Save the presentation as a PPTX

	objPres.SaveAs("VSTOSampleChart", Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsDefault, MsoTriState.msoTrue);

	//Close Workbook and presentation

	dataWorkbook.Application.Quit();

	objPres.Application.Quit();

}

//Supplementary methods

public static void StartPowerPoint()

{

	objPPT = new Microsoft.Office.Interop.PowerPoint.Application();

	objPPT.Visible = MsoTriState.msoTrue;

	//  objPPT.WindowState = PowerPoint.PpWindowState.ppWindowMaximized

}

public static void EnsurePowerPointIsRunning(bool blnAddPresentation)

{

	EnsurePowerPointIsRunning(blnAddPresentation, false);

}

public static void EnsurePowerPointIsRunning()

{

	EnsurePowerPointIsRunning(false, false);

}

public static void EnsurePowerPointIsRunning(bool blnAddPresentation, bool blnAddSlide)

{

	string strName = null;

	//

	//Try accessing the name property. If it causes an exception then

	//start a new instance of PowerPoint

	try

	{

		strName = objPPT.Name;

	}

	catch (Exception ex)

	{

		StartPowerPoint();

	}

	//

	//blnAddPresentation is used to ensure there is a presentation loaded

	if (blnAddPresentation == true)

	{

		try

		{

			strName = objPres.Name;

		}

		catch (Exception ex)

		{

			objPres = objPPT.Presentations.Add(MsoTriState.msoTrue);

		}

	}

	//

	//BlnAddSlide is used to ensure there is at least one slide in the

	//presentation

	if (blnAddSlide)

	{

		try

		{

			strName = objPres.Slides[1].Name;

		}

		catch (Exception ex)

		{

			Microsoft.Office.Interop.PowerPoint.Slide objSlide = null;

			Microsoft.Office.Interop.PowerPoint.CustomLayout objCustomLayout = null;

			objCustomLayout = objPres.SlideMaster.CustomLayouts[1];

			objSlide = objPres.Slides.AddSlide(1, objCustomLayout);

			objSlide.Layout = Microsoft.Office.Interop.PowerPoint.PpSlideLayout.ppLayoutText;

			objCustomLayout = null;

			objSlide = null;

		}

	}

Aspose.Slides

Using Aspose.Slides for .NET, the following steps are performed:

Create an instance of a Microsoft PowerPoint presentation.
Add a blank slide to the presentation.
Add a 3D clustered column chart and access that.
Access the chart data worksheet using a Microsoft Excel Workbook instance from workbook.
Remove unused series 2 and 3.
Access chart categories and modify the labels.
Acces series 1 and modify the series values.
Now, access the chart title and set the font properties.
Access the chart value axis and set the major unit, minor units, max value and min values.
Now, set the chart rotation angles in X and Y direction.
Save the presentation to PPTX format.


 public static void GEN_ASPOSE_Chart()

{

	//Create empty presentation

	using (PresentationEx pres = new PresentationEx())

	{

		//Accessing first slide

		SlideEx slide = pres.Slides[0];

		//Addding default chart

		ChartEx ppChart = slide.Shapes.AddChart(ChartTypeEx.ClusteredColumn3D, 20F, 30F, 400F, 300F);

		//Getting Chart data

		ChartDataEx chartData = ppChart.ChartData;

		//Removing Extra default series

		chartData.Series.RemoveAt(1);

		chartData.Series.RemoveAt(1);

		//Modifying chart categories names

		chartData.Categories[0].ChartDataCell.Value = "Bikes";

		chartData.Categories[1].ChartDataCell.Value = "Accessories";

		chartData.Categories[2].ChartDataCell.Value = "Repairs";

		chartData.Categories[3].ChartDataCell.Value = "Clothing";

		//Modifying chart series values for first category

		chartData.Series[0].Values[0].Value = 1000;

		chartData.Series[0].Values[1].Value = 2500;

		chartData.Series[0].Values[2].Value = 4000;

		chartData.Series[0].Values[3].Value = 3000;

		//Setting Chart title

		ppChart.HasTitle = true;

		ppChart.ChartTitle.Text.Text = "2007 Sales";

		PortionFormatEx format = ppChart.ChartTitle.Text.Paragraphs[0].Portions[0].PortionFormat;

		format.FontItalic = NullableBool.True;

		format.FontHeight = 18;

		format.FillFormat.FillType = FillTypeEx.Solid;

		format.FillFormat.SolidFillColor.Color = Color.Black;


		//Setting Axis values

		ppChart.ValueAxis.IsAutomaticMaxValue = false;

		ppChart.ValueAxis.IsAutomaticMinValue = false;

		ppChart.ValueAxis.IsAutomaticMajorUnit = false;

		ppChart.ValueAxis.IsAutomaticMinorUnit = false;

		ppChart.ValueAxis.MaxValue = 4000.0F;

		ppChart.ValueAxis.MinValue = 0.0F;

		ppChart.ValueAxis.MajorUnit = 2000.0F;

		ppChart.ValueAxis.MinorUnit = 1000.0F;

		ppChart.ValueAxis.TickLabelPosition = TickLabelPositionType.NextTo;

		//Setting Chart rotation

		ppChart.Rotation3D.RotationX = 15;

		ppChart.Rotation3D.RotationY = 20;

		//Saving Presentation

		pres.Write("AsposeSampleChart.pptx");

	}

Download Sample Code

Add Picture Frame to Presentation Create and Embed an Excel Chart as an OLE Object