【.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",,HorizontalAlignment.Center);
            listView1.Columns.Add("文件大小", , HorizontalAlignment.Center);
            listView1.Columns.Add("文件路径", , 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 > )
                {
                    int j = ;
                    string count = listView1.CheckedItems.Count.ToString();
                    for (int i = ; 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[];
                            int size = ; int ren = ;
                            while (ren < fir.Length)
                           {
                               Application.DoEvents();
                                size = fir.Read(buffer,,buffer.Length);
                                des.Write(buffer, , 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[].Text;
                int pro = (int)((float)copy / long.Parse(total) * );
                if (pro <= progressBarEx1.Maximum)
                {
                    progressBarEx1.Value = pro;
                    progressBarEx1.Text = label1.Text.Split('：')[].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('：')[].ToString(), label1.Text.Split('：')[].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