winform下用FileStream实现多文件上传

feisguan 2018-05-25

展开全文

先看效果图：

代码：

[csharp] view plain copy

print?

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();
}
}
}
}