【.NET】转载：使用FileStream批量上传文件。

  先看效果图：

                                                           

代码（没什么难度的一个案例，进度条为第三方控件ProgressODoom.dll，自己去网上下。）

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 System.IO;  
using System.Collections;  
using System.Threading;  
  
namespace VideoTrans  
{  
    public partial class Form2 : Form  
    {  
        public Form2()  
        {  
            InitializeComponent();  
            LoadListView();  
            this.FormClosed += (sender, e) => {  
                Application.Exit();  
               System.Diagnostics.Process pro = System.Diagnostics.Process.GetCurrentProcess();  
                pro.Kill();  
            };  
        }  
        /// <summary>   
        /// 初始化上传列表   
        /// </summary>   
        void LoadListView()  
        {  
            listView1.View = View.Details;  
            listView1.CheckBoxes = true;  
            listView1.GridLines = true;  
            listView1.Columns.Add("文件名",150,HorizontalAlignment.Center);  
            listView1.Columns.Add("文件大小", 150, HorizontalAlignment.Center);  
            listView1.Columns.Add("文件路径", 150, HorizontalAlignment.Center);  
        }  
       /// <summary>   
        /// 存储目录   
        /// </summary>   
        /// <param name="sender"></param>   
        /// <param name="e"></param>   
       private void button2_Click(object sender, EventArgs e)  
        {  
            FolderBrowserDialog fbd = new FolderBrowserDialog();  
           if(fbd.ShowDialog()==DialogResult.OK)  
            {  
                textBox1.Text=fbd.SelectedPath;  
            }  
        }  
        /// <summary>   
        /// 打开上传文件   
        /// </summary>   
        /// <param name="sender"></param>   
        /// <param name="e"></param>   
        private void button3_Click(object sender, EventArgs e)  
        {  
              
            OpenFileDialog ofd = new OpenFileDialog();  
            ofd.Multiselect = true;  
            if(ofd.ShowDialog()==DialogResult.OK)  
            {  
                foreach(string filename in ofd.FileNames)  
                {  
                    FileInfo fi=new FileInfo(filename);  
                    ListViewItem lvi = new ListViewItem(Path.GetFileNameWithoutExtension(filename));  
                    lvi.Tag = filename;  
                    lvi.SubItems.Add(fi.Length.ToString());  
                    //lvi.SubItems.Add((fi.Length / (1024 * 1024)).ToString() + "M");   
                    lvi.SubItems.Add(Path.GetDirectoryName(filename));  
                    listView1.Items.Add(lvi);  
                }  
                  
            }  
        }  
        public delegate void DeleFile(int position);  
        /// <summary>   
        /// 文件上传   
        /// </summary>   
        /// <param name="sender"></param>   
        /// <param name="e"></param>   
        private void button1_Click(object sender, EventArgs e)  
        {  
  
            if (textBox1.Text.Trim().Equals(""))  
            {  
                MessageBox.Show("请先选择存储目录..!");  
            }  
            else  
            {  
                  
                if (listView1.Items.Count > 0)  
                {  
                    int j = 0;  
                    string count = listView1.CheckedItems.Count.ToString();  
                    for (int i = 0; i < listView1.Items.Count;i++ )  
                    {  
                          
                        if (listView1.Items[i].Checked)  
                        {  
                            j++;  
                            string fileName = Path.GetFileName(listView1.Items[i].Tag.ToString());  
                            label1.Text = string.Format("正在上传文件:[{0}]", listView1.Items[i].Text) + "：" + j.ToString() + "：" + count;  
                            FileStream des = new FileStream(Path.Combine(textBox1.Text, fileName), FileMode.OpenOrCreate, FileAccess.Write);  
                            FileStream fir = new FileStream(listView1.Items[i].Tag.ToString(), FileMode.Open, FileAccess.Read);  
                            byte[] buffer = new byte[10240];  
                            int size = 0; int ren = 0;  
                            while (ren < fir.Length)  
                           {  
                               Application.DoEvents();  
                                size = fir.Read(buffer,0,buffer.Length);  
                                des.Write(buffer, 0, size);  
                                ren += size;  
                                Pro(ren);  
                           }                 
                            listView1.Items[i].Checked = false;  
                        }  
                        else  
                        {  
                            continue;  
                        }       
                    }  
                    //MessageBox.Show("上传成功!");   
                }  
                else  
                {  
                    return;  
                }  
            }       
             
        }  
        public void Pro(int copy)  
        {  
        
            if (this.progressBarEx1.InvokeRequired)  
           {  
                this.progressBarEx1.Invoke(new DeleFile(Pro),new object[]{copy});  
                return;  
            }  
            foreach (ListViewItem lvi in listView1.CheckedItems)  
            {  
                string total = lvi.SubItems[1].Text;  
                int pro = (int)((float)copy / long.Parse(total) * 100);  
                if (pro <= progressBarEx1.Maximum)  
                {  
                    progressBarEx1.Value = pro;  
                    progressBarEx1.Text = label1.Text.Split('：')[0].ToString() + Environment.NewLine + string.Format("上传进度:{0}%", pro) + Environment.NewLine + string.Format("已上传文件数：{0}/{1}", label1.Text.Split('：')[1].ToString(), label1.Text.Split('：')[2].ToString());  
                      
                }  
            }  
              
        }  
        /// <summary>   
        /// 删除文件   
        /// </summary>   
        /// <param name="sender"></param>   
        /// <param name="e"></param>   
        private void button4_Click(object sender, EventArgs e)  
        {  
            foreach(ListViewItem lvi in listView1.CheckedItems)  
            {  
                lvi.Remove();  
            }  
        }  
        
    }  
}  

转自：http://blog.csdn.net/wanlong360599336/article/details/7564508