File transfer using socket programming in vb.net

Both codes are in there own Thread, so it should be no problem for you are anyone to add to they projects. I do have an extra section Just for sending the name and file size. Then from there it is just a matter of sending and receiving while suspending chat or opening up a new connection the value of those two. If you want to see my code for that too then let me know. You have to add both codes to the client sending and receiving and the server sending and receiving so that both can send and receive files.

FileName ProgressBar1. FileName, FileMode. Open, FileAccess. Read bytesToSend, 0, bytesToSend. Length NWStream. Update NWStream. Flush Loop Threading. Sleep ProgressBar1.

Flush FileSTR. Close FileReader. GetStream Dim bytesToRead client. Text, FileMode. Append, FileAccess. Close NWStream. Close Client. Close MsgBox "All done! Start End Sub. Differences Hi man, very thank you. Thank you again. If I understand your question correctly, than you would like to know what is the difference between sending a String and a File right?

There are only two differences. If you want to send a String, this is how you would convert it to its Byte form. GetBytes TextBox1. Send SendBytes, SendBytes. Yes, correct question is : Like the server it differentiates when what receives it is a String or File?

That routine can be created using the Network Stream which is what I used in the pervious example to send and receive a file. If this explanation does not answer your question, then provide a detailed example of what you're trying to understand. Hi, i try understand the server side. Follow the link below. Ho i can extend here server recibe the file? Receive Recibir, Recibir.

Length, SocketFlags. Here it is! It will accept more than one client and it will be all TCP socket. Sockets Imports System.

Thread AddressOf sendSub sendThread. Connect Form1. Open, FileAccess. Read buffer, 0, buffer. Write buffer, 0, bytesRead nstm. Flush Loop clist. Close nstm. Close fstm. Object, ByVal e As System. EventArgs Handles MyBase.

Any, servertr. GetStream Try System. Delete Application. Sends the file fileName and buffers of data to a connected Socket object using the specified TransmitFileOptions value.

A String that contains the path and name of the file to be sent. This parameter can be null. This buffer can be empty. One or more of TransmitFileOptions values. The Socket object has been closed. The Socket object is not connected to a remote host. The Socket object is not in blocking mode and cannot accept this synchronous call. The path and name of the file to be sent. The data to be sent before the file is sent. The data to be sent after the file is sent.

The following code example creates and connects a socket. The file "test. In this example, we create a prebuffer and postbuffer of data and send them to the remote host with the file. The default TransmitFileOptions are used. This overload requires the name of the file you want to send and a bitwise combination of TransmitFileOptions values.

The preBuffer parameter contains any data you want to precede the file. If fileName is in the current working directory, it may be identified with just the name of the file; otherwise, the full path and name of the file must be specified.

Wildcards ".. The flags parameter provides the Window Sockets service provider with additional information about the file transfer. For more information about how to use this parameter, see TransmitFileOptions.