geboshi_V1/LeatherProject/LeatherApp/Utils/ExcelUtil.cs

//using ClosedXML.Excel;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace LeatherApp.Utils
{
    public class ExcelUtil
    {
        public static DataTable ConvertToDataTable<T>(IList<T> data,List<string> lstColName)
        {
            PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(typeof(T));
            DataTable table = new DataTable();
            foreach (PropertyDescriptor prop in properties)
            {
                if(lstColName.Contains(prop.Name))
                    table.Columns.Add(prop.Name, Nullable.GetUnderlyingType(prop.PropertyType) ?? prop.PropertyType);
            }
            foreach (T item in data)
            {
                DataRow row = table.NewRow();
                foreach (PropertyDescriptor prop in properties)
                {
                    if (lstColName.Contains(prop.Name))
                        row[prop.Name] = prop.GetValue(item) ?? DBNull.Value;
                }
                table.Rows.Add(row);
            }
            return table;
        }
        public static bool DataTable2CSV( string saveFilePath,System.Data.DataTable dt)
        {
            //MessageBox.Show(AbosultedFilePath);
            System.IO.FileStream fs = new FileStream(saveFilePath, System.IO.FileMode.Create, System.IO.FileAccess.Write);
            StreamWriter sw = new StreamWriter(fs, new System.Text.UnicodeEncoding());
            //Tabel header
            for (int i = 0; i < dt.Columns.Count; i++)
            {
                sw.Write(dt.Columns[i].ColumnName);
                sw.Write("\t");
            }
            sw.WriteLine("");
            //Table body
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                for (int j = 0; j < dt.Columns.Count; j++)
                {
                    sw.Write(DelQuota(dt.Rows[i][j].ToString()));
                    sw.Write("\t");
                }
                sw.WriteLine("");
            }
            sw.Flush();
            sw.Close();
            return true;
        }
        public static string DelQuota(string str)
        {
            string result = str;
            string[] strQuota = { "~", "!", "@", "#", "$", "%", "^", "&", "*", "(", ")", "`", ";", "'", ",",  "/", ":", "/,", "<", ">", "?" };//".",
            for (int i = 0; i < strQuota.Length; i++)
            {
                if (result.IndexOf(strQuota[i]) > -1)
                    result = result.Replace(strQuota[i], "");
            }
            return result;
        }

        //public static bool saveFile(string saveFilePath, DataTable dataTable)
        //{
        //    try
        //    {
        //        //// 创建一个 DataTable 对象来存储数据
        //        //DataTable dataTable = new DataTable("MyData");
        //        //// 添加列到 DataTable
        //        //dataTable.Columns.Add("Name", typeof(string));
        //        //dataTable.Columns.Add("Age", typeof(int));
        //        //// 向 DataTable 中添加数据行
        //        //dataTable.Rows.Add("John Doe", 30);
        //        //dataTable.Rows.Add("Jane Smith", 25);
        //        // 使用 ClosedXML 组件导出 Excel 文件
        //        using (XLWorkbook workbook = new XLWorkbook())
        //        {
        //            IXLWorksheet worksheet = workbook.AddWorksheet("MySheet");
        //            int row = 1; //行从1开始
        //            for (int i = 0; i < dataTable.Rows.Count; i++)
        //            {
        //                for (int j = 0; j < dataTable.Columns.Count; j++)
        //                {
        //                    if (row == 1)//头标题
        //                        worksheet.Cell(1, j + 1).Value = dataTable.Columns[j].ColumnName;
                            
        //                    //内容
        //                    worksheet.Cell(row + 1, j + 1).Value = dataTable.Rows[i][j].ToString();
        //                    // 设置单元格样式
        //                    //worksheet.Cell(row, 2).Style.Font.Bold = true;
        //                    //worksheet.Cell(row, 2).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;
                 
        //                }
        //                row++;
        //            }
        //            // 将 Excel 文件保存到磁盘
        //            //string fileName = @"C:\temp\MyExcelFile.xlsx";
        //            workbook.SaveAs(saveFilePath);
        //            // 释放资源
        //            workbook.Dispose();
        //        }
        //        return true;
        //    }
        //    catch (Exception ex)
        //    {
        //        throw ex;
        //    }
        //}
        //public static bool test(string saveFilePath, DataTable dataTable1)
        //{
        //    try
        //    {
        //        // 创建一个 DataTable 对象来存储数据
        //        DataTable dataTable = new DataTable("MyData");
        //        // 添加列到 DataTable
        //        dataTable.Columns.Add("Name", typeof(string));
        //        dataTable.Columns.Add("Age", typeof(int));
        //        // 向 DataTable 中添加数据行
        //        dataTable.Rows.Add("John Doe", 30);
        //        dataTable.Rows.Add("Jane Smith", 25);
        //        // 使用 ClosedXML 组件导出 Excel 文件
        //        using (XLWorkbook workbook = new XLWorkbook())
        //        {
        //            IXLWorksheet worksheet = workbook.AddWorksheet("MySheet");
        //            int row = 1;
        //            foreach (DataRow dataRow in dataTable.Rows)
        //            {
        //                worksheet.Cell(row, 1).Value = dataRow["Name"].ToString();
        //                worksheet.Cell(row, 2).Value = Convert.ToInt32(dataRow["Age"]);
        //                // 设置单元格样式
        //                worksheet.Cell(row, 2).Style.Font.Bold = true;
        //                worksheet.Cell(row, 2).Style.Alignment.Horizontal = XLAlignmentHorizontalValues.Right;
        //                row++;
        //            }
        //            // 将 Excel 文件保存到磁盘
        //            //string fileName = @"C:\temp\MyExcelFile.xlsx";
        //            workbook.SaveAs(saveFilePath);
        //            // 释放资源
        //            workbook.Dispose();
        //        }
        //        return true;
        //    }
        //    catch (Exception ex)
        //    {
        //        return false;
        //    }
        //}
    }
}