在Excel的Range对象中，哪个属性是将r中的内容中间对齐啊

[MEELON]

代码如下：

WS = (Excel.Worksheet)exc.Application.Worksheets.Add(System.Reflection.Missing.Value,System.Reflection.Missing.Value,System.Re
flection.Missing.Value,System.Reflection.Missing.Value);

WS.Name = Reader["jgmc"].ToString();
WS.Cells.Font.Size = 9;

r = WS.get_Range(WS.Cells[2,1],WS.Cells[2,5]);
r.Font.Bold = true;

//现在想r中间对齐，用什么属性哪？
r.???


另外想附带问问高手，哪位兄台有Excel对象的详细属性与方法说明，拜托提供一二，多谢

[xd123]

r.Halignment = 2

[孟子E章]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dv_wrcore/html/wrgrfexcelworkbookobject.asp

[oh_love]

.HorizontalAlignment = Excel.XlHAlign.xlHAlignCenter;