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V25.1
  • How to Add Error Bars to a Chart Series

    The example shows how to add error bars for a chart series.

    Follow the steps below to create an error bar:

    1. Call the Add method to create an error bar for a chart series.

    2. Specify the properties of the created ErrorBarsOptions object.

    The code sample below creates error bars for a line chart:

    chart with error bars

    using DevExpress.Spreadsheet.Charts;
    //... 
    spreadsheetControl1.LoadDocument("Document.xlsx");
    
    var chart1 = spreadsheetControl1.ActiveWorksheet.Charts[0];
    ErrorBarsOptions errorBar = chart1.Series[0].ErrorBars.Add(ErrorBarType.Both);
    //Specify the error type and value
    errorBar.ValueType = ErrorBarValueType.Percentage;
    errorBar.Value = 10;
    //Specify error bar settings
    errorBar.NoEndCap = true;