实例介绍
【实例简介】包含了ftp上传及下载的各种操作
【实例截图】
【核心代码】using ftpClient.Core;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace ftpClient
{
public partial class main : Form
{
public main()
{
InitializeComponent();
btnConnect.Click = BtnConnect_Click;
btnUpload.Click = BtnUpload_Click;
btnDownload.Click = BtnDownload_Click;
lblBack.Click = LblBack_Click;
gvFiles.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
gvFiles.MultiSelect = false;
gvFiles.SelectionChanged = GvFiles_SelectionChanged;
gvFiles.CellFormatting = GvFiles_CellFormatting;
gvFiles.CellDoubleClick = GvFiles_CellDoubleClick;
this.FormClosing = Main_FormClosing;
}
private void Main_FormClosing(object sender, FormClosingEventArgs e)
{
Ftp.Instance.Disconnct();
}
private void LblBack_Click(object sender, EventArgs e)
{
gvFiles.DataSource = Ftp.Instance.GoToParentFolder();
}
private void GvFiles_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
var selectedRow = gvFiles.Rows[e.RowIndex];
var item = selectedRow.DataBoundItem as FtpFileObject;
if (item.IsFolder)
{
gvFiles.DataSource = Ftp.Instance.GetListing(item.Name);
}
}
private void GvFiles_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
if (gvFiles.Columns[e.ColumnIndex].Name == "IsFolder")
{
var selectedRow = gvFiles.Rows[e.RowIndex];
var item = selectedRow.DataBoundItem as FtpFileObject;
var image = item.IsFolder ? UI.Properties.Resources.folder : UI.Properties.Resources.file;
e.Value = image;
}
}
private void GvFiles_SelectionChanged(object sender, EventArgs e)
{
btnDownload.Enabled = true;
}
private void BtnDownload_Click(object sender, EventArgs e)
{
var selectedRows = gvFiles.SelectedRows;
if(selectedRows.Count < 1)
{
MessageBox.Show("请先选择一个文件");
return;
}
var selectedRow = selectedRows[0];
var file = selectedRow.DataBoundItem as FtpFileObject;
if (file.IsFolder)
{
MessageBox.Show("请选择文件");
return;
}
using(var folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog())
{
DialogResult result = folderBrowserDialog.ShowDialog();
if (result == DialogResult.OK)
{
var folderName = folderBrowserDialog.SelectedPath;
if (Ftp.Instance.DownloadFile(file.Name, Path.Combine(folderName, file.Name)))
{
MessageBox.Show("下载成功");
}
}
}
}
private void BtnUpload_Click(object sender, EventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = "c:\\";
openFileDialog.Filter = "All files (*.*)|*.*";
openFileDialog.FilterIndex = 2;
openFileDialog.RestoreDirectory = true;
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
try
{
var selectedFiles = openFileDialog.FileNames;
if(Ftp.Instance.UploadFile(selectedFiles) > 0)
{
gvFiles.DataSource = Ftp.Instance.GetListing();
}
}
catch (Exception ex)
{
MessageBox.Show("Error: Could not read file from disk. Original error: " ex.Message);
}
}
}
private void BtnConnect_Click(object sender, EventArgs e)
{
string strUserName = tbUserName.Text.Trim();
string strPassword = tbUserName.Text.Trim();
string strHost = tbServer.Text.Trim();
string strPort = tbPort.Text.Trim();
int port = 21;
if (string.IsNullOrWhiteSpace(strUserName))
{
MessageBox.Show("请输入用户名");
return;
}
if (string.IsNullOrWhiteSpace(strPassword))
{
MessageBox.Show("请输入密码");
return;
}
if (string.IsNullOrWhiteSpace(strHost))
{
MessageBox.Show("请输入远程ftp地址");
return;
}
if(!int.TryParse(strPort, out port))
{
MessageBox.Show("请输入正确的端口号");
return;
}
Ftp.Instance.Connect(strHost, port, strUserName, strPassword);
var files = Ftp.Instance.GetListing();
gvFiles.DataSource = files;
}
}
}
【实例截图】

【核心代码】using ftpClient.Core;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace ftpClient
{
public partial class main : Form
{
public main()
{
InitializeComponent();
btnConnect.Click = BtnConnect_Click;
btnUpload.Click = BtnUpload_Click;
btnDownload.Click = BtnDownload_Click;
lblBack.Click = LblBack_Click;
gvFiles.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
gvFiles.MultiSelect = false;
gvFiles.SelectionChanged = GvFiles_SelectionChanged;
gvFiles.CellFormatting = GvFiles_CellFormatting;
gvFiles.CellDoubleClick = GvFiles_CellDoubleClick;
this.FormClosing = Main_FormClosing;
}
private void Main_FormClosing(object sender, FormClosingEventArgs e)
{
Ftp.Instance.Disconnct();
}
private void LblBack_Click(object sender, EventArgs e)
{
gvFiles.DataSource = Ftp.Instance.GoToParentFolder();
}
private void GvFiles_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
{
var selectedRow = gvFiles.Rows[e.RowIndex];
var item = selectedRow.DataBoundItem as FtpFileObject;
if (item.IsFolder)
{
gvFiles.DataSource = Ftp.Instance.GetListing(item.Name);
}
}
private void GvFiles_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
if (gvFiles.Columns[e.ColumnIndex].Name == "IsFolder")
{
var selectedRow = gvFiles.Rows[e.RowIndex];
var item = selectedRow.DataBoundItem as FtpFileObject;
var image = item.IsFolder ? UI.Properties.Resources.folder : UI.Properties.Resources.file;
e.Value = image;
}
}
private void GvFiles_SelectionChanged(object sender, EventArgs e)
{
btnDownload.Enabled = true;
}
private void BtnDownload_Click(object sender, EventArgs e)
{
var selectedRows = gvFiles.SelectedRows;
if(selectedRows.Count < 1)
{
MessageBox.Show("请先选择一个文件");
return;
}
var selectedRow = selectedRows[0];
var file = selectedRow.DataBoundItem as FtpFileObject;
if (file.IsFolder)
{
MessageBox.Show("请选择文件");
return;
}
using(var folderBrowserDialog = new System.Windows.Forms.FolderBrowserDialog())
{
DialogResult result = folderBrowserDialog.ShowDialog();
if (result == DialogResult.OK)
{
var folderName = folderBrowserDialog.SelectedPath;
if (Ftp.Instance.DownloadFile(file.Name, Path.Combine(folderName, file.Name)))
{
MessageBox.Show("下载成功");
}
}
}
}
private void BtnUpload_Click(object sender, EventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.InitialDirectory = "c:\\";
openFileDialog.Filter = "All files (*.*)|*.*";
openFileDialog.FilterIndex = 2;
openFileDialog.RestoreDirectory = true;
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
try
{
var selectedFiles = openFileDialog.FileNames;
if(Ftp.Instance.UploadFile(selectedFiles) > 0)
{
gvFiles.DataSource = Ftp.Instance.GetListing();
}
}
catch (Exception ex)
{
MessageBox.Show("Error: Could not read file from disk. Original error: " ex.Message);
}
}
}
private void BtnConnect_Click(object sender, EventArgs e)
{
string strUserName = tbUserName.Text.Trim();
string strPassword = tbUserName.Text.Trim();
string strHost = tbServer.Text.Trim();
string strPort = tbPort.Text.Trim();
int port = 21;
if (string.IsNullOrWhiteSpace(strUserName))
{
MessageBox.Show("请输入用户名");
return;
}
if (string.IsNullOrWhiteSpace(strPassword))
{
MessageBox.Show("请输入密码");
return;
}
if (string.IsNullOrWhiteSpace(strHost))
{
MessageBox.Show("请输入远程ftp地址");
return;
}
if(!int.TryParse(strPort, out port))
{
MessageBox.Show("请输入正确的端口号");
return;
}
Ftp.Instance.Connect(strHost, port, strUserName, strPassword);
var files = Ftp.Instance.GetListing();
gvFiles.DataSource = files;
}
}
}
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