Documents for Excel .NET Edition | GCDocuments
Features / Conditional Formatting / Average Rule
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    Average Rule
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    The average rule in conditional formatting can be added and deleted using the properties and methods of the IAboveAverage interface.

    Refer to the following example code to add average rule to a range of cells in a worksheet.

    C#
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    // Adding average rule
    worksheet.Range["A1"].Value = 1;
    worksheet.Range["A2"].Value = 2;
    worksheet.Range["A3"].Value = 3;
    worksheet.Range["A4"].Value = 4;
    worksheet.Range["A5"].Value = 60000000;
    
    IAboveAverage averageCondition = worksheet.Range["A1:A5"].FormatConditions.AddAboveAverage();
    averageCondition.AboveBelow = AboveBelow.AboveAverage;
    averageCondition.NumStdDev = 2;
    averageCondition.NumberFormat = "0.00";