Sending Ctrl+Z to a serial port

I开发者_如何学C'm sending AT-Command to gsm modem through serial port.

At the end of the AT-Command I have to terminate the command with Ctrl+z

How would I do that in serial port?

try this

(char)26

detail on ascii of char-z

Send the ASCII character 0x1A.

Have a look at the ASCII code table

Use this Command

port.Write(txt_msgbox.Text + char.ConvertFromUtf32(26));