Documents for Excel .NET Edition | GCDocuments
Features / Chart / Chart Types / Combo Chart
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    Combo Chart
    In This Topic

    Combo chart is a combination of two or more chart types in a single plot area. For instance, a bar and line chart in a single plot. Combination charts are best used to compare the different data sets that are related to each other, such as actual and target values, total revenue and profit, temperature and precipitation etc. Note that these charts may require multiple axes to cater different scales. 

    Chart Type Chart Snapshot Use Case
    Combo
    Combo chart

    Combo chart

    Combo chart can be used to interpret and understand different type of data that is completely unrelated (for instance: price and volume) or to plot one or more data series on the secondary axis.

    Using Code

    Refer to the following example code to add Combo Chart:

    C#
    Copy Code
     public void ComboCharts()
     {
         // Initialize workbook
         Workbook workbook = new Workbook();
         // Fetch default worksheet 
         IWorksheet worksheet = workbook.Worksheets[0];
    
         // Prepare data for chart
         worksheet.Range["A1:C17"].Value = new object[,] {
        { "Mobile Phones", "Laptops", "Tablets" },
        { 1350, 120, 75 },
        { 1500, 90, 35 },
        { 1200, 80, 50 },
        { 1300, 80, 80 },
        { 1750, 90, 100 },
        { 1640, 120, 130 },
        { 1700, 120, 95 },
        { 1100, 90, 80 },
        { 1350, 120, 75 },
        { 1500, 90, 35 },
        { 1200, 80, 50 },
    };
         worksheet.Range["A:C"].Columns.AutoFit();
    
         // Add Combination Chart
         IShape comboChartShape = worksheet.Shapes.AddChart(ChartType.ColumnClustered, 250, 20, 360, 230);
         // Adding series to SeriesCollection
         comboChartShape.Chart.SeriesCollection.Add(worksheet.Range["A1:C17"], RowCol.Columns);
    
         // Configure Chart Title 
         comboChartShape.Chart.ChartTitle.Text = "Annual Sales Record-Combination Chart";
         ISeries series1 = comboChartShape.Chart.SeriesCollection[0];
         ISeries series2 = comboChartShape.Chart.SeriesCollection[1];
         ISeries series3 = comboChartShape.Chart.SeriesCollection[2];
    
         //Change series type to make it Combination chart of different ChartTypes
         series1.ChartType = ChartType.Area;
         series2.ChartType = ChartType.ColumnStacked;
         series3.ChartType = ChartType.Line;
    
         //Set axis group
         series2.AxisGroup = AxisGroup.Secondary;
         series3.AxisGroup = AxisGroup.Secondary;
    
         //Configure axis scale and unit
         IAxis value_axis = comboChartShape.Chart.Axes.Item(AxisType.Value);
         IAxis value_second_axis = comboChartShape.Chart.Axes.Item(AxisType.Value, AxisGroup.Secondary);
         value_axis.MaximumScale = 1800;
         value_axis.MajorUnit = 450;
         value_second_axis.MaximumScale = 300;
         value_second_axis.MajorUnit = 75;
    
         // Saving workbook to Xlsx
         workbook.Save("24-ComboChart.xlsx", SaveFileFormat.Xlsx);
     }