993977-How to apply the line pattern to each data point in the series

Document-Processing/Excel/Excel-Library/NET/faqs/how-to-apply-the-line-pattern-to-each-data-point-in-the-series.md

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+---
+title: How to apply Line Pattern to Line Chart Series | Syncfusion
+description: Learn how to apply a line pattern to every data point in a line chart series using Syncfusion .NET Excel library (XlsIO) in C# and VB.NET.
+platform: document-processing
+control: XlsIO
+documentation: UG
+---
+
+# How to apply a line pattern to a line chart series in Excel?
+
+By default, Microsoft Excel applies a line pattern to each data point when you set it on a series. Syncfusion XlsIO, however, does not propagate the pattern automatically. To ensure every point in a line series uses the same pattern, you must apply it to the series and then to each data point individually.
+
+The code snippet below shows how to set a CircleDot line pattern on the second series of a line chart in both C# and VB.NET.
+
+{% tabs %}
+{% highlight c# tabtitle="C# [Cross-platform]" %}
+using (ExcelEngine excelEngine = new ExcelEngine())
+{
+    IApplication application = excelEngine.Excel;
+    application.DefaultVersion = ExcelVersion.Xlsx;
+    IWorkbook workbook = application.Workbooks.Open("../../../Data/Input.xlsx", ExcelOpenType.Automatic);
+    IWorksheet sheet = workbook.Worksheets[0];
+
+    //Access the first chart and its second series
+    IChartShape chart = sheet.Charts[0];
+    IChartSerie serie = chart.Series[1];
+
+	//Set the line pattern for the series
+    serie.SerieFormat.LineProperties.LinePattern = ExcelChartLinePattern.CircleDot;
+
+	//Apply the same line pattern to each data point
+    foreach (IChartDataPoint dataPoint in serie.DataPoints)
+    {
+        dataPoint.DataFormat.LineProperties.LinePattern = ExcelChartLinePattern.CircleDot;
+    }
+
+    //Save the modified workbook
+    workbook.SaveAs("../../../Output/Chart.xlsx");
+}
+{% endhighlight %}
+
+{% highlight c# tabtitle="C# [Windows-specific]" %}
+using (ExcelEngine excelEngine = new ExcelEngine())
+{
+    IApplication application = excelEngine.Excel;
+    application.DefaultVersion = ExcelVersion.Xlsx;
+    IWorkbook workbook = application.Workbooks.Open("../../Data/Input.xlsx", ExcelOpenType.Automatic);
+    IWorksheet sheet = workbook.Worksheets[0];
+
+    //Access the first chart and its second series
+    IChartShape chart = sheet.Charts[0];
+    IChartSerie serie = chart.Series[1];
+
+    //Set the line pattern for the series
+    serie.SerieFormat.LineProperties.LinePattern = ExcelChartLinePattern.CircleDot;
+
+    //Apply the same line pattern to each data point
+    foreach (IChartDataPoint dataPoint in serie.DataPoints)
+    {
+        dataPoint.DataFormat.LineProperties.LinePattern = ExcelChartLinePattern.CircleDot;
+    }
+
+    //Save the modified workbook
+    workbook.SaveAs("../../Output/Chart.xlsx");
+}
+{% endhighlight %}
+
+{% highlight vb.net tabtitle="VB.NET [Windows-specific]" %}
+Using excelEngine As New ExcelEngine()
+    Dim application As IApplication = excelEngine.Excel
+    application.DefaultVersion = ExcelVersion.Xlsx
+
+    Dim workbook As IWorkbook = application.Workbooks.Open("../../Data/Input.xlsx", ExcelOpenType.Automatic)
+    Dim sheet As IWorksheet = workbook.Worksheets(0)
+
+    ' Access the first chart and its second series
+    Dim chart As IChartShape = sheet.Charts(0)
+    Dim serie As IChartSerie = chart.Series(1)
+
+    ' Set the line pattern for the series
+    serie.SerieFormat.LineProperties.LinePattern = ExcelChartLinePattern.CircleDot
+
+    ' Apply the same line pattern to each data point
+    For Each dataPoint As IChartDataPoint In serie.DataPoints
+        dataPoint.DataFormat.LineProperties.LinePattern = ExcelChartLinePattern.CircleDot
+    Next
+
+    ' Save the modified workbook
+    workbook.SaveAs("../../Output/Chart.xlsx")
+End Using
+{% endhighlight %}
+{% endtabs %}
+
+## See Also
+
+* [How to change the grid line color of the Excel sheet?](https://help.syncfusion.com/file-formats/xlsio/faqs/how-to-change-the-grid-line-color-of-the-excel-sheet)
+* [How to add chart labels to scatter points?](https://help.syncfusion.com/file-formats/xlsio/faqs/how-to-add-chart-labels-to-scatter-points)
+* [How to create a Chart with a discontinuous range?](https://help.syncfusion.com/file-formats/xlsio/faqs/how-to-create-a-chart-with-a-discontinuous-range)