using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Microsoft.Office.Interop.Excel;
using System.IO;
using NPOI.SS.UserModel;
using NPOI.XSSF.UserModel;

namespace SopShow
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
       //在窗体的OnLoad事件中调用该方法
        //protected void Form1_OnLoad(...) {
        //    showOnMonitor(1);//index=1
        //}

        private void showOnMonitor(int showOnMonitor) 
        { 
            Screen[] sc; 
            sc = Screen.AllScreens; 
            if (showOnMonitor >= sc.Length) {
                showOnMonitor = 0;
            }


            this.StartPosition = FormStartPosition.Manual; 
            this.Location = new System.Drawing.Point(sc[showOnMonitor].Bounds.Left, sc[showOnMonitor].Bounds.Top);
            // If you intend the form to be maximized, change it to normal then maximized.
            this.WindowState = FormWindowState.Normal;
            this.WindowState = FormWindowState.Maximized;
        }
        private void button1_Click(object sender, EventArgs e)
        {
            int showOnMonitor = 1;
                        Screen[] sc; 
            sc = Screen.AllScreens;
            if (showOnMonitor >= sc.Length)
            {
                showOnMonitor = 0;
            }
            ShowExcel(sc[showOnMonitor]);
        }

        private void ShowExcel(Screen sc)
        {
            //IWorkbook workbook;
            //FileStream fileStream = new FileStream(@"D:\test.xlsx", FileMode.Open, FileAccess.Read);
            //workbook = new XSSFWorkbook(fileStream);
            //NPOI.HSSF.UserModel.HSSFWorkbook book = new NPOI.HSSF.UserModel.HSSFWorkbook(new FileStream("D:\\test.xlsx", FileMode.Open));
            Microsoft.Office.Interop.Excel.Application excelApp = new Microsoft.Office.Interop.Excel.Application();
   
            //不可或缺
            excelApp.Visible = true;
            excelApp.DisplayFullScreen = true;

            string top = excelApp.Top.ToString();
            string Left = excelApp.Left.ToString();
   
            Workbook wb = excelApp.Workbooks.Open("D:/test.xlsx", Type.Missing, Type.Missing,
                                                            Type.Missing, Type.Missing,
                                                            Type.Missing, Type.Missing,
                                                            Type.Missing, Type.Missing,
                                                            Type.Missing, Type.Missing,
                                                            Type.Missing, Type.Missing);
            try
            {
                Worksheet ws = (Worksheet)wb.Worksheets[1];
                ws.ShowAllData();

                GC.Collect();
                GC.WaitForPendingFinalizers();
                wb.Close(false, Type.Missing, Type.Missing);
                excelApp.Quit();
            }
            catch (Exception e)
            {
                int i = 0;
            }
            finally
            {
                //GC.Collect();
                //GC.WaitForPendingFinalizers();
                //wb.Close(false, Type.Missing, Type.Missing);
                //excelApp.Quit();
            }

        }

        private void Form1_Load(object sender, EventArgs e)
        {
            //showOnMonitor(1);
            //ShowExcel();
        }
    }
}