C#实战014:Excel操作-获取Excel工作表明细

          昨天新增工作表时忽略了一个问题，那就是当你所建的表已经存在时程序就报错了，所以这里我们先获取sheet工作表明细，然后进行比对，当没有时创建，有则跳过。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Office.Interop.Excel;
using System.Diagnostics;
using System.Reflection;

namespace ConsoleApplication3
{
    class EditExcel
    {
        #region 获取Excel工作表
        /// <summary>
        /// 获取Excel工作表
        /// </summary>
        /// <param name="ExcelName"></param>
        public void compute(string ExcelName)
        {
            List<string> sheets = new List<string>(); //存储Excel中的sheet工作表
            Application App = new Application();       //创建 Excel对象
            object missing = Missing.Value;            //获取缺少的object类型值
            Workbook openwb = App.Workbooks.Open(ExcelName, missing, missing, missing, missing,
                missing, missing, missing, missing, missing, missing, missing, missing, missing, missing);    //打开指定的Excel文件
            Worksheet newsheet = (Worksheet)openwb.Worksheets.Add(missing, missing, 1, missing);     //添加新的Excel工作表
            for (int i = 1; i < openwb.Worksheets.Count; i++)   //循环sheet工作表
            {
                string sheet =( (Worksheet)openwb.Worksheets[i]).Name; 
                Console.WriteLine(sheet);  //打印sheets列表
                sheets.Add(sheet);   //将Excel工作表存入sheets数组中
            }
            Console.ReadLine();
        }
        #endregion
    }
}