C#实战008:Excel操作-创建新的Excel工作表

接下来我们接着新建Excel工作表，在新建Excel文件基础上新增工作表。

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 创建工作表
        /// <summary>
        /// 创建新的工作表
        /// </summary>
        /// <param name="ExcelName"></param>
        public void CreateSheet(string ExcelName)
        {
            //创建 Excel对象
            Application App = new Application();
            //获取缺少的object类型值
            object missing = Missing.Value;
            //打开指定的Excel文件
            Workbook openwb = App.Workbooks.Open(ExcelName, missing, missing, missing, missing, 
                missing, missing, missing, missing, missing, missing, missing, missing, missing, missing);
            //添加新的Excel工作表
            Worksheet newsheet = (Worksheet)openwb.Worksheets.Add(missing, missing, 1, missing);
            //Add参数(Before, After, Count, Type);
            Console.WriteLine("请输入需要新增的工作表名称:");
            string sheetName = Console.ReadLine();
            newsheet.Name = sheetName;
            Console.WriteLine("添加成功！");
            App.DisplayAlerts = false;//不现实提示对话框
            openwb.Save();//保存工作表
            App.Visible = true;//显示Excel
            openwb.Close(false, missing, missing);//关闭工作表
            //创建进程对象
            Process[] ExcelProcess = Process.GetProcessesByName("Excel");
            //关闭进程
            foreach (Process p in ExcelProcess)
            {
                p.Kill();
            }
        }
        #endregion
    }
}

Add后面的参数(Before, After, Count, Type)解释：

Before:在其他工作前面添加工作表

After：在其他工作后面添加工作表

Count：要添加几个工作表

Type：工作表的类型

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

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            EditExcel app = new EditExcel();
            //app.Create(@"C:\Users\敏\Desktop");
            app.CreateSheet(@"C:\Users\敏\Desktop\测试页面20181211021229.xls");
        }
    }
   
}

我现在使用控制台写的，所以直接给其赋值绝对路径了，如果你用windows窗口可以动态获取文件路径。

   新增Excel工作表查询，如果Excel工作表中已存在新增工作表名时则直接跳过，没有则新增：

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
    {
        public Microsoft.Office.Interop.Excel.Worksheet ws;
        #region 创建工作表
        /// <summary>
        /// 创建新的工作表
        /// </summary>
        /// <param name="ExcelName"></param>
        public void compute(string ExcelName)
        {
            //创建进程对象
            Process[] ExcelProcess = Process.GetProcessesByName("EXCEL");
            //关闭进程
            foreach (Process p in ExcelProcess)
            {
                p.Kill();
            }
            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
            //--------------------------------获取Excel工作表名称------------------------------
            for (int i = 1; i < openwb.Worksheets.Count; i++)   //循环sheet工作表
            {
                string sheet = ((Worksheet)openwb.Worksheets[i]).Name;
                sheets.Add(sheet);
            }
            //--------------------------------定义新增Excel工作表名称------------------------------
            string addsheet = "刀具预估数量";
            if (sheets.Contains(addsheet))   //判断Excel中是否存在该工作表
            {
                Console.WriteLine("新增工作表已存在");
            }
            else                             //没有则新增该工作表
            {
                ws = (Worksheet)openwb.Worksheets.Add(missing, missing, 1, missing);     //添加新的Excel工作表
                ws.Name = addsheet;
                openwb.Save();//保存Excel文件
                App.DisplayAlerts = false;//不显示提示对话框
                //App.Visible = true;
            }
        }
        #endregion
    }
}