How to send and receive a struct in TCP or UDP

You'll need to convert the struct to a byte array and then use BinaryWriter to send it and BinaryReader to read it:

http://msdn.microsoft.com/en-us/library/system.io.binarywriter.aspx 

http://msdn.microsoft.com/en-us/library/system.io.binaryreader.aspx 

You can convert the struct to a byte array, and back again, using methods in the System.Runtime.InteropServices.Marshal class.

There's some example code in this thread:

http://stackoverflow.com/questions/3278827/how-to-convert-structure-to-byte-array-in-c 

Although I don't think it says so in there, I'd also decorate your struct with the following attribute:

[StructLayout(LayoutKind.Sequential)]