FTP 服务器的安装和配置方法FTP 客户端的开发方法
btnUpload.Enabled = true; btndownload.Enabled = true; btnDelete.Enabled = true; } else {
lstbxFtpState.Enabled = true; tbxloginmessage.Text = "登录失败"; }
}
6. 上传模块代码
/// <summary>
/// 上传文件 /// </summary>
private void btnUpload_Click(object sender, EventArgs e)
{
// 选择要上传的文件
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.FileName = openFileDialog.FileNames.ToString(); openFileDialog.Filter = "所有文件(*.*)|*.*"; if (openFileDialog.ShowDialog() != DialogResult.OK) {
return; }
FileInfo fileinfo = new FileInfo(openFileDialog.FileName); try {
string uri = GetUriString(http://www.77cn.com.cn); FtpWebRequest request = CreateFtpWebRequest(uri, WebRequestMethods.Ftp.UploadFile);
request.ContentLength = fileinfo.Length; int buflength = 8196;
byte[] buffer = new byte[buflength];
FileStream filestream = fileinfo.OpenRead(); Stream responseStream = request.GetRequestStream(); lstbxFtpState.Items.Add("打开上传流，文件上传中..."); int contenlength = filestream.Read(buffer, 0, buflength); while (contenlength != 0) {
responseStream.Write(buffer, 0, contenlength); contenlength = filestream.Read(buffer, 0, buflength); }