Customize regular expression to allow alphabets and dots in textbox
<p>Hello friends
In my application I want to customize regular expression in such a way that it will allow character and dot only. For eg. I could be be able to enter M.C.A or MCA any of these. For this task how to customize regular expression? I tried [a-zA-Z] followed by\ and dot in side bracket but is not working.
I also tried [ABCD] just for testing but it shows invalid text for ABC.
What might be the reason????
Thanks to all...</p>
