What is meaning of Internet E-mail Address in vaildation control:

You may have problems with the email validation regular expression if you don't add anchors at the beginning and end of the expression.

Check out this thread:

http://www.c-sharpcorner.com/Forums/Thread/135211/in-email-field-should-not-allow-special-characters.aspx

Hi Rushikesh,

To understand the regular expressions you should have little knowledge of expression rules. There are numerous article on learning regular expression on web.
for explanation of Email field lets break it...

 \w+([-+.']\w+)* means you can have any alphabets and combinations containing - or . in the ID part
@  means address can contain only 1 occurrence of @ symbol

\w+([-.]\w+)*   this is again the same as above.

\. means a single . dot can occur after the above words

\w+([-.]\w+)*  this is again repeated combination as explained above.

for phone number validation regular expression

(0( \d|\d ))? this means 0 or more combination of single digits starting with 0.

hope this was helpful.

Thanks.