IChartGridLine Border Property

<para>//Create worksheet</para><para>Workbook workbook = new Workbook();</para><para>workbook.LoadFromFile("Sample.xlsx");</para><para>Worksheet worksheet = workbook.Worksheets[0];</para><para>//Create chart and set range</para><para>IChart chart = worksheet.Charts.Add();</para><para>chart.DataRange = worksheet.Range["A1:C2"];</para><para>//Set value axis minor gridLines to visible</para><para>chart.PrimaryValueAxis.HasMinorGridLines = true;</para><para>//Get value axis minor gridlines</para><para>IChartGridLine gridLine = chart.PrimaryValueAxis.MinorGridLines;</para><para>Set minor gridlines broder properties</para><para>gridLine.Border.Color = Color.Red;</para><para>//Save to file</para><para>workbook.SaveToFile("Chart.xlsx");</para>