C#路徑選擇及Excel讀寫操作
阿新 • • 發佈：2019-02-15
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Reflection;
using NPOI.SS.UserModel;
using NPOI.HSSF.UserModel;
using NPOI.XSSF.UserModel;
namespace AutoData
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
public string path = string.Empty;
public string readstr1 = string.Empty;
public string readstr2 = string.Empty;
public string readstr3 = string.Empty;
public string fileName = string.Empty;
private string read_excel(int readsheet,int x,int y)
{
IWorkbook workbook = null; //新建IWorkbook物件
fileName = @path + "/123.xlsx";
FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read);
if (fileName.IndexOf(".xlsx") > 0) // 2007版本
{
workbook = new XSSFWorkbook(fileStream); //xlsx資料讀入workbook
}
else if (fileName.IndexOf(".xls") > 0) // 2003版本
{
workbook = new HSSFWorkbook(fileStream); //xls資料讀入workbook
}
fileStream.Close(); //關閉檔案流
ISheet sheet = workbook.GetSheetAt(readsheet-1); //獲取第一個工作表
workbook.Close();
IRow row;
row = sheet.GetRow(x-1);
//int rowcount = sheet.LastRowNum;
string cellValue = row.GetCell(y-1).ToString();
Console.WriteLine(cellValue);
return cellValue;
}
private bool write_excle(int readsheet,int x,int y,string value)
{
//IWorkbook workbook = null; //新建IWorkbook物件
// fileName = @path + "/123.xlsx";
//FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
//if (fileName.IndexOf(".xlsx") > 0) // 2007版本
//{
// workbook = new XSSFWorkbook(fileStream); //xlsx資料讀入workbook
//}
//else if (fileName.IndexOf(".xls") > 0) // 2003版本
//{
// workbook = new HSSFWorkbook(fileStream); //xls資料讀入workbook
//}
//ISheet sheet = workbook.GetSheetAt(readsheet - 1); //獲取第一個工作表
//ICell cell = sheet.GetRow(x - 1).GetCell(y - 1);
//cell.SetCellValue(value);
//workbook.Write(fileStream);
//Console.WriteLine("寫入成功！");
//fileStream.Close(); //關閉檔案流
//workbook.Close();
IWorkbook workbook = new XSSFWorkbook();
workbook.CreateSheet("sheet1");//建立sheet
fileName = @path + "/123.xlsx";
FileStream fs = File.Create(fileName);//path=mmm.xls;
ISheet sheet = workbook.GetSheetAt(readsheet-1);//獲取sheet
sheet.CreateRow(5).CreateCell(4).SetCellValue(value);
workbook.Write(fs);
return true;
}
private void button1_Click(object sender, EventArgs e)
{
System.Windows.Forms.FolderBrowserDialog fbd = new System.Windows.Forms.FolderBrowserDialog();
if (fbd.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
path = fbd.SelectedPath;
}
textBox1.Text = path;
}
private void button2_Click(object sender, EventArgs e)
{
bool ret = false;
readstr1 = read_excel(1,3,3);
// textBox1.Text = readstr1;
ret = write_excle(1, 4, 3, readstr1);
if (ret)
{
textBox1.Text = "OK";
}
}
}
}