Add some

Add some

Author: devgis

CSVHelper.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Web;
+using System.Data;
+using System.IO;
+
+namespace Bddd.Common
+{
+    public class CSVHelper
+    {
+        /// <summary>
+        /// Stream读取.csv文件
+        /// </summary>
+        /// <param name="filePath">文件路径</param>
+        /// <returns></returns>
+        public static DataTable OpenCSV(string filePath)
+        {
+            DataTable dt = new DataTable();
+            FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
+            StreamReader sr = new StreamReader(fs, System.Text.Encoding.Default);
+            //记录每次读取的一行记录
+            string strLine = "";
+            //记录每行记录中的各字段内容
+            string[] aryLine;
+            //标示列数
+            int columnCount = 0;
+            //标示是否是读取的第一行
+            bool IsFirst = true;
+            //逐行读取CSV中的数据
+            while ((strLine=sr.ReadLine())!=null)
+            {
+                aryLine = strLine.Split(',');
+                if (IsFirst==true)
+                {
+                    IsFirst = false;
+                    columnCount = aryLine.Length;
+                    for (int i = 0; i < columnCount; i++)
+                    {
+                        DataColumn dc = new DataColumn(aryLine[i]);
+                        dt.Columns.Add(dc);
+                    }
+                }
+                else
+                {
+                    DataRow dr = dt.NewRow();
+                    for (int j = 0; j < columnCount; j++)
+                    {
+                        dr[j] = aryLine[j];
+                    }
+                    dt.Rows.Add(dr);
+                }
+            }
+            sr.Close();
+            fs.Close();
+            return dt;
+        }
+    }
+}

DataGridViewExportExcel .cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.IO;
+using NPOI.HSSF.UserModel;
+using System.Windows.Forms;
+using NPOI.SS.UserModel;
+using NPOI.HSSF.Util;
+
+namespace HFSIFrame.UC
+{
+    public class ExportExcel
+    {
+        public static void GridToExcel(string fileName, DataGridView dgv)
+        {
+            if (dgv.Rows.Count == 0)
+            {
+                return;
+            }
+            SaveFileDialog sfd = new SaveFileDialog();
+            sfd.Filter = "Excel 2003格式|*.xls";
+            sfd.FileName = fileName + DateTime.Now.ToString("yyyyMMddHHmmssms");
+            if (sfd.ShowDialog() != DialogResult.OK)
+            {
+                return;
+            }
+            HSSFWorkbook wb = new HSSFWorkbook();
+            HSSFSheet sheet = (HSSFSheet)wb.CreateSheet(fileName);
+            HSSFRow headRow = (HSSFRow)sheet.CreateRow(0);
+
+            //样式
+            ICellStyle cellStyle = Getcellstyle(wb);
+
+            for (int i = 0; i < dgv.Columns.Count; i++)
+            {
+                HSSFCell headCell = (HSSFCell)headRow.CreateCell(i, CellType.String);
+                headCell.SetCellValue(dgv.Columns[i].HeaderText);
+                headCell.CellStyle = cellStyle;
+            }
+
+           
+
+
+            for (int i = 0; i < dgv.Rows.Count; i++)
+            {
+                HSSFRow row = (HSSFRow)sheet.CreateRow(i + 1);
+                for (int j = 0; j < dgv.Columns.Count; j++)
+                {
+                    HSSFCell cell = (HSSFCell)row.CreateCell(j);
+                    if (dgv.Rows[i].Cells[j].Value == null)
+                    {
+                        cell.SetCellType(CellType.Blank);
+                    }
+                    else
+                    {
+                        if (dgv.Rows[i].Cells[j].ValueType.FullName.Contains("System.Int32"))
+                        {
+                            cell.SetCellValue(Convert.ToInt32(dgv.Rows[i].Cells[j].Value));
+                        }
+                        else if (dgv.Rows[i].Cells[j].ValueType.FullName.Contains("System.String"))
+                        {
+                            cell.SetCellValue(dgv.Rows[i].Cells[j].Value.ToString());
+                        }
+                        else if (dgv.Rows[i].Cells[j].ValueType.FullName.Contains("System.Single"))
+                        {
+                            cell.SetCellValue(Convert.ToSingle(dgv.Rows[i].Cells[j].Value));
+                        }
+                        else if (dgv.Rows[i].Cells[j].ValueType.FullName.Contains("System.Double"))
+                        {
+                            cell.SetCellValue(Convert.ToDouble(dgv.Rows[i].Cells[j].Value));
+                        }
+                        else if (dgv.Rows[i].Cells[j].ValueType.FullName.Contains("System.Decimal"))
+                        {
+                            cell.SetCellValue(Convert.ToDouble(dgv.Rows[i].Cells[j].Value));
+                        }
+                        else if (dgv.Rows[i].Cells[j].ValueType.FullName.Contains("System.DateTime"))
+                        {
+                            cell.SetCellValue(Convert.ToDateTime(dgv.Rows[i].Cells[j].Value).ToString("yyyy-MM-dd"));
+                        }
+                    }
+                    //cell.CellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
+                    //cell.CellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
+                    //cell.CellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
+                    //cell.CellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
+                    cell.CellStyle = cellStyle;
+                }
+
+            }
+            for (int i = 0; i < dgv.Columns.Count; i++)
+            {
+                sheet.AutoSizeColumn(i);
+            }
+            using (FileStream fs = new FileStream(sfd.FileName, FileMode.Create))
+            {
+                wb.Write(fs);
+            }
+            HFSMessageBox.ShowMessage("导出成功！");
+            //MessageBox.Show("导出成功！", "导出提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
+        }
+
+        public enum stylexls
+        {
+
+            头,
+
+            url,
+
+            时间,
+
+            数字,
+
+            钱,
+
+            百分比,
+
+            中文大写,
+
+            科学计数法,
+
+            默认
+
+        }
+
+
+        static ICellStyle Getcellstyle(IWorkbook wb, stylexls str=stylexls.默认)
+        {
+
+            ICellStyle cellStyle = wb.CreateCellStyle();
+
+
+
+
+            //定义几种字体
+
+            //也可以一种字体，写一些公共属性，然后在下面需要时加特殊的
+
+            IFont font12 = wb.CreateFont();
+
+            font12.FontHeightInPoints = 10;
+
+            font12.FontName = "微软雅黑";
+
+
+
+
+
+
+            IFont font = wb.CreateFont();
+
+            font.FontName = "微软雅黑";
+
+            //font.Underline = 1;下划线
+
+
+
+
+
+
+
+            IFont fontcolorblue = wb.CreateFont();
+
+            fontcolorblue.Color = HSSFColor.OliveGreen.Black.Index;
+
+            fontcolorblue.IsItalic = true;//下划线
+
+            fontcolorblue.FontName = "微软雅黑";
+
+
+
+
+
+
+
+            //边框
+
+            cellStyle.BorderBottom = NPOI.SS.UserModel.BorderStyle.Thin;
+
+            cellStyle.BorderLeft = NPOI.SS.UserModel.BorderStyle.Thin;
+
+            cellStyle.BorderRight = NPOI.SS.UserModel.BorderStyle.Thin;
+
+            cellStyle.BorderTop = NPOI.SS.UserModel.BorderStyle.Thin;
+
+            //边框颜色
+
+            cellStyle.BottomBorderColor = HSSFColor.OliveGreen.Black.Index;
+
+            cellStyle.TopBorderColor = HSSFColor.OliveGreen.Black.Index;
+
+
+
+
+            //背景图形，我没有用到过。感觉很丑
+
+            //cellStyle.FillBackgroundColor = HSSFColor.OLIVE_GREEN.BLUE.index;
+
+            //cellStyle.FillForegroundColor = HSSFColor.OLIVE_GREEN.BLUE.index;
+
+            cellStyle.FillForegroundColor = HSSFColor.White.Index;
+
+            // cellStyle.FillPattern = FillPatternType.NO_FILL;
+
+            cellStyle.FillBackgroundColor = HSSFColor.Maroon.Index;
+
+
+
+            //水平对齐
+
+            cellStyle.Alignment = NPOI.SS.UserModel.HorizontalAlignment.Left;
+
+
+
+
+            //垂直对齐
+
+            cellStyle.VerticalAlignment = VerticalAlignment.Center;
+
+
+
+
+            //自动换行
+
+            cellStyle.WrapText = true;
+
+
+
+
+            //缩进;当设置为1时，前面留的空白太大了。希旺官网改进。或者是我设置的不对
+
+            cellStyle.Indention = 0;
+
+
+            return cellStyle;
+
+            //上面基本都是设共公的设置
+
+            //下面列出了常用的字段类型
+
+            switch (str)
+            {
+
+                case stylexls.头:
+
+                    // cellStyle.FillPattern = FillPatternType.LEAST_DOTS;
+
+                    cellStyle.SetFont(font12);
+
+                    break;
+
+                case stylexls.时间:
+
+                    IDataFormat datastyle = wb.CreateDataFormat();
+
+
+
+
+                    cellStyle.DataFormat = datastyle.GetFormat("yyyy/mm/dd");
+
+                    cellStyle.SetFont(font);
+
+                    break;
+
+                case stylexls.数字:
+
+                    cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("0.00");
+
+                    cellStyle.SetFont(font);
+
+                    break;
+
+                case stylexls.钱:
+
+                    IDataFormat format = wb.CreateDataFormat();
+
+                    cellStyle.DataFormat = format.GetFormat("￥#,##0");
+
+                    cellStyle.SetFont(font);
+
+                    break;
+
+                case stylexls.url:
+
+                    fontcolorblue.Underline = FontUnderlineType.Single;
+
+                    cellStyle.SetFont(fontcolorblue);
+
+                    break;
+
+                case stylexls.百分比:
+
+                    cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("0.00%");
+
+                    cellStyle.SetFont(font);
+
+                    break;
+
+                case stylexls.中文大写:
+
+                    IDataFormat format1 = wb.CreateDataFormat();
+
+                    cellStyle.DataFormat = format1.GetFormat("[DbNum2][$-804]0");
+
+                    cellStyle.SetFont(font);
+
+                    break;
+
+                case stylexls.科学计数法:
+
+                    cellStyle.DataFormat = HSSFDataFormat.GetBuiltinFormat("0.00E+00");
+
+                    cellStyle.SetFont(font);
+
+                    break;
+
+                case stylexls.默认:
+
+                    cellStyle.SetFont(font);
+
+                    break;
+
+            }
+
+            return cellStyle;
+        }
+ 
+
+    }
+}