如何以编程方式在C＃Excel vsto中为单元格添加彩色边框？

Question

How can I add a colored border to a cell in C# Excel VSTO?

I found the API via the following link, and there're some descriptions regarding adding borders, but not very specific. The weird thing is VS2010 doesn't recognize BorderAround() method. It seems to only recognize BorderAround2() , but complaining the arguments I put int.

Below is the code that I tried, but VS complains about the invalid arguments.

range.BorderAround2(Excel.XlLineStyle.xlDash, Type.Missing, Type.Missing, System.Drawing.Color.Red, Type.Missing);

http://msdn.microsoft.com/en-us/library/microsoft.office.interop.excel.range.borderaround(v=office.14).aspx

Answer 1

Use the Borders.Color and Bordes.LineStyle properties of the Range object.

This is a snippet from a VSTO application-level addin.

using Excel = Microsoft.Office.Interop.Excel;

Excel.Range pRange = Globals.ThisAddIn.Application.ActiveCell;

pRange.Borders.Color = 0x0000FF; // an RGB value in hex
pRange.Borders.LineStyle = Excel.XlLineStyle.xlContinuous;

Note that the Borders.Color property uses the inverse of the supplied RGB value as the color.

Alternatively, you could use the ColorIndex property, but the range of colors is limited. See this for more details.

Answer 2

My own approach is similar to what idssl suggested, but utilizing ColorTranslator.ToOle method.

range.Borders.LineStyle = Excel.XlLineStyle.xlDot;
range.Borders.Color = ColorTranslator.ToOle(Color.Red);

Which also works for me.

Answer 3

You should see here

http://www.aspose.com/docs/display/cellsnet/Add+Borders+to+Cells+in+a+Worksheet

With

//Set the borders with hair lines style.
_range.SetOutlineBorders( CellBorderType.Hair, Color.Black);