how to append text to textedit

[Assassintears]

I code a tcp client desktop app, want to receive string data from the server and put it to textedit. Now the error description likes bellow when I calling AppendText of textedit.

[kjk]

The error tells you that str contains a byte 0 in it (which is not a valid character). Most likely this happens because Read() doesn't fill the whole by and the rest of it is filled with default 0 bytes. Try:

n, err := tcp.conn.Read(by)
...
tcp.Ch <- string(by[:n])

It'll still fail if the bytes sent on tcp connection contains 0 byte. You might want to filter invalid chars to guard against that.

[Assassintears]

@kjk yes, I fixed the problem with your method, thank you very much