we have overridden the event because we have used a top abstract class and are using the object // the abstract class and instantiating the object using subclasses. we have created the events of corresponding delegate type so that user can just subcribe // to the event and display the result in the way they intend to. Public override event CollectDirectoryDelegate displa圜ollectDirectory Public override event CollectFilesDelegate displa圜ollectFiles Public override event DisplayUploadDelegate uploadFile Public override event DisplayDownloadDelegate downloadFile Method property of FtpWebRequest gives us the purpose of the request (whether you want to upload, download or delete etc.) Length (gives us the size of the file), Name (gives the name of the file), FullName (full path for the file). The FileInfo class provides you with the way to do that FileInfo class has property Or any zip files where binary streams of data are involved its better to opt for binary that is set property to true. Mostly text files and documents with ascii format texts you can initialise the property to false while if you have to transfer files such as media or pictures ![]() Each has its scenario in cases where you concerned with ![]() UseBinary property specifies the mode of FTP operation you can opt for either binary orĪSCII mode. When an user is downloading a file one has to create the instance of FtpWebRequest class with the FTP URL for the particular file (e.g., if the file performs the FTP remove directory public override string FtpRemoveDirectory( string serverUri) Request.Method = įtpWebResponse response = (FtpWebResponse)request.GetResponse() Public override string FtpMakeDirectory( string serverUri)įtpWebRequest request = (FtpWebRequest)WebRequest.Create( new Uri( " ftp://" + FtpServer + serverUri)) Method property of FtpWebRequest gives us the purpose of the request( whether you want to create a directory delete a directory or a file). In case of file upload there is a ContentLength property that has to be set with the length of the file that you are uploading.įileInfo class provides you with the way to do that FileInfo class has property Length (gives us the size of the file),įile), FullName (full path for the file). While if you have to transfer files such as media or pictures or any zip files where binary streams of data are involved its better to opt for binary that is set property to true. UseBinary property specifies the mode of FTP operation you can opt for either binary or ascii mode.Įach has its scenario in cases where you concerned with mostly text files and documents with ascii format texts you can initialise the property to false The KeepAlive property specifies whether the connection has to be left open after the corresponding process by default the value is true. With qmake, we add the following to = new NetworkCredential(FtpUserName, FtpPassword) We link against the Qt SCXML module by adding the following line to the project build files. For more information, visit Building and Running an Example. To run the example from Qt Creator, open the Welcome mode and select the example from Examples. ![]() In addition, we implement a FtpControlChannel class and a FtpDataChannel class that handle TCP sockets and servers and convert line endings. It reacts to user input and to replies from the control channel by changing states and sending external events. The state machine is specified in the simpleftp.scxml file and compiled into the FtpClient class that implements the logic of the FTP protocol.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |