Chapter 8-ICellStyle Cell Style Operation

1. Border settings

			ICellStyle cellstyle= workbook.CreateCellStyle();
            /*
             * 边框样式(四周边框)，如果文本框内本身有内容，设置边框样式会失效
             */
            //下边框
            cellstyle.BorderBottom = BorderStyle.Thin;
            //上边框
            cellstyle.BorderTop = BorderStyle.Hair;
            //左边框
            cellstyle.BorderLeft = BorderStyle.Medium;
            //右边框
            cellstyle.BorderRight = BorderStyle.Dotted;

            //其它边框---实线类
            cellstyle.BorderBottom = BorderStyle.Thin;//细实线（黑色）
            cellstyle.BorderBottom = BorderStyle.Medium;//粗实线（黑色）
            cellstyle.BorderBottom = BorderStyle.Thick;//更粗的实线
            cellstyle.BorderBottom = BorderStyle.Double;//细的双实线

            //其它边框---虚线类
            cellstyle.BorderBottom = BorderStyle.Hair;//点状的虚线
            cellstyle.BorderBottom = BorderStyle.Dashed;//细的，较短虚线
            cellstyle.BorderBottom = BorderStyle.Dotted;//细的，短的的虚线（比dashed更短）
            cellstyle.BorderBottom = BorderStyle.MediumDashed;//粗的，长的短横 虚线

            cellstyle.BorderBottom = BorderStyle.DashDot;//细的，长短交替的虚线
            cellstyle.BorderBottom = BorderStyle.MediumDashDot;//粗的，长短交替的虚线
            cellstyle.BorderBottom = BorderStyle.DashDotDot;//细的 长短短交替的虚线
            cellstyle.BorderBottom = BorderStyle.MediumDashDotDot;//粗的，长短短交替的虚线
            cellstyle.BorderBottom = BorderStyle.SlantedDashDot;//连接较为紧密的虚线（有点花那种）


            /*
             * 边框颜色
             */
            //下边框颜色
            cellstyle.BottomBorderColor = 10;//红色
            //左边框颜色
            cellstyle.LeftBorderColor = 10;
            //右边框颜色
            cellstyle.RightBorderColor = 10;
            //上边框颜色
            cellstyle.TopBorderColor = 10;

2. Text position

 			//水平位置
            cellstyle.Alignment = HorizontalAlignment.Center;//居中
            cellstyle.Alignment = HorizontalAlignment.General;//常规
            cellstyle.Alignment = HorizontalAlignment.Left;//靠左
            cellstyle.Alignment = HorizontalAlignment.Right;//靠右
            cellstyle.Alignment = HorizontalAlignment.Fill;//填充
            cellstyle.Alignment = HorizontalAlignment.Justify;//两端对齐
            cellstyle.Alignment = HorizontalAlignment.CenterSelection;//跨列居中
            cellstyle.Alignment = HorizontalAlignment.Distributed;//分散对齐（缩进）
            //垂直位置
            cellstyle.VerticalAlignment = VerticalAlignment.Top;
            cellstyle.VerticalAlignment = VerticalAlignment.Center;
            cellstyle.VerticalAlignment = VerticalAlignment.Bottom;
            cellstyle.VerticalAlignment = VerticalAlignment.Justify;//两端对齐
            cellstyle.VerticalAlignment = VerticalAlignment.Distributed;//分散对齐

3. Font settings

            /*
             * 字体设置
             * 行设置了字体后，excel中所有的行的字体样式都发生了改变，不仅仅是我设置了字体样式的行
             * 列设置字体后，其他行的字体也发生了改变
             * 单独获取单元格的cellstyle之后，对这个对象设置对应字体，仍然是全局的字体发生变化
             */
            IFont font = cellstyle.GetFont(workbook);
            font.FontName = "微软雅黑";//字体
            font.Color = 10;//颜色
            //font.FontHeight = 15;//字体高度---不要使用
            font.FontHeightInPoints = 15;//字体高度（与excel中的字号一致）
            font.IsBold = true;//是否加粗
            font.IsItalic = true;//是否斜体
            font.IsStrikeout = true;//是否加删除线
            cellstyle.SetFont(font);

Note: Have questions about font settings?
1. Why does the global font style change when the font is set?
2. Why does FontName have no effect?

4. Color settings

			/*
             * 单元格背景色设置
             */
            cellstyle.FillForegroundColor = 10;//10代表红色
            cellstyle.FillPattern = FillPattern.SolidForeground;//必须设置这个，否则样式无效

Remarks: This way of setting colors is not very scientific. You need to know the corresponding values ​​of various colors in advance, and then set the corresponding colors.
Here is a temporary color comparison table, a better way to summarize in the new blog post