How to create Excel histogram chart in C#, VB.NET?

This article explains how to create a histogram chart in Excel using XlsIO.

What is a histogram chart?

Histogram shows the frequencies within a distribution. Each column of the chart is called a bin, which can be changed further to analyze the data.

             Histogram chart created using XlsIO

To create a histogram chart in Excel using XlsIO, you need to do the following steps.

Steps to create histogram chart

1. Initialize chart

Create a chart object by calling the worksheet.Charts.Add method and specify the chart type to ExcelChartType.Histogram enum value.

2. Assign data

Set a range of data from the worksheet to chart’s DataRange property. To plot the series values in column and categories in row, set chart’s IsSeriesInRows property to false.

3. Apply basic chart elements

Add the basic elements like chart title, data labels and legend with the below list of properties.

• ChartTitle of chart object.
• Set DataLabels via DefaultDataPoint.
• Set TRUE to chart’s HasLegend property, to show the legend.

Applicable properties of histogram chart

Below is the list of other properties that is applicable for a histogram chart.

1.  GapWidth

2.  IsBinningByCategory

3.  HasAutomaticBins

4.  BinWidth

5.  NumberOfBins

6.  OverflowBinValue

7.  UnderflowBinValue

NOTES:

1. Applying other properties unrelated to this chart might throw exception or the changes will not be reflected in the output document because those properties are not related to histogram chart.
2. As histogram chart is introduced in MS Excel 2016, it can’t be viewed in MS Excel 2013 and its earlier versions.

Download Complete Sample

Download input file with data

To know more about creating charts with various settings using XlsIO, please refer the documentation.

The following C#/ VB.NET complete code snippet shows the creation of histogram chart using XlsIO.

C#

VB