NPOI2.0学习（三）

HSSFWorkbook wk = new HSSFWorkbook();//你用来操作的HSSFWorkbook的实例
ICellStyle cellStyle = wk.CreateCellStyle();

ICellStyle cellStyle = wk.CreateCellStyle();
//设置单元格上下左右边框线
cellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
cellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
//文字水平和垂直对齐方式
cellStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Center;
cellStyle.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.Center;
//是否换行
//cellStyle.WrapText = true;
//缩小字体填充
cellStyle.ShrinkToFit = true;

ICellStyle style2 = wb.CreateCellStyle();//样式
IFont font1 = wb.CreateFont();//字体
font1.FontName = "楷体";
font1.Color = HSSFColor.Red.Index;//字体颜色
font1.Boldweight = (short)FontBoldWeight.Normal;//字体加粗样式
style2.SetFont(font1);//样式里的字体设置具体的字体样式
//设置背景色
style2.FillForegroundColor = NPOI.HSSF.Util.HSSFColor.Yellow.Index;
style2.FillPattern = FillPattern.SolidForeground;
style2.FillBackgroundColor = NPOI.HSSF.Util.HSSFColor.Yellow.Index;
style2.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Left;//文字水平对齐方式
style2.VerticalAlignment = NPOI.SS.UserModel.VerticalAlignment.Center;//文字垂直对齐方式

ICell Cell = sheet.CreateRow(0).CreateCell(0);
Cell.CellStyle = cellStyle;
Cell.SetCellValue("测试格式效果");

ICellStyle newCellStyle = wk.CreateCellStyle();
newCellStyle.CloneStyleFrom(cellStyle);
newCellStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Left;