auto change text in textbox

[azad]

Hi,
I want to change my Text in textbox so what coding will be do.
ex:- when user given input A, A is autoconvert to B, textbox showing only
B not A, without using enter.
all working will done in one text box.

 

[Nathan Sokalski]

I'm not sure why you would want to do that, but it sounds like you are
looking for the JavaScript onkeypress event. Here is a page to get you
started:

http://unixpapa.com/js/key.html

Take note that there are slight browser differences for these events, so you
may want to test it and do a little research as to what works on what. Good
Luck!