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How to change line style to smoothed line in line chart using XlsIO?

Platform: WinForms |
Control: XlsIO |
Published Date: February 28, 2018 |
Last Revised Date: February 28, 2018

This article explains how to change line style to smoothed line in line chart using XlsIO.


What is smoothed line?


A smoothed line helps you explore the potential relationships between two variables without fitting a specific model. Smoothed lines are most useful when the curvature of the relationship does not change sharply.



            Line style changed to smoothed line using XlsIO

To create a line chart and change the line style to smoothed line in Excel using XlsIO, you need to do the following steps.     


Steps to create change line style to smoothed line


  1. Initialize chart


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



  1. 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.



  1. Apply basic chart elements


Add the basic elements like chart title, legend and datalabels.


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



  1. Change line style to smoothed line


Change the line style of chart series to smoothed line.


  • Change line style by using IsSmoothedLine property.



Applicable properties for a Line Chart


Common property applicable for a line charts is


  1. IsVarycolor  (This property holds good for single series chart).


NOTE: Applying other properties apart from the mentioned property might throw exception or the changes will not be reflected in the output document because those properties are not related to line chart.


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 how to change line style to smoothed line in line chart using XlsIO.






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