Question

How do I apply a border around merged cells? (I don’t mind if it is in VB, c#…)
My code only apply a border around the first cell.

My code:

Range range = sheet.Cells[r,c]; // Select first cell in a group.
range.Borders = XlLineStyle.xlContinuous;

Thank you!

Answer 1

Range chartrange = worksheet.Range["a5", "d8"];
            chartrange.Merge();

            chartrange = worksheet.Range["a5", "d8"];
            chartrange.Borders.LineStyle = Microsoft.Office.Interop.Excel.XlLineStyle.xlDouble;
            chartrange.Borders.Color = System.Drawing.Color.Red;

This works as well. so, you can choose merged cells range again and apply border on it.