disallow special chracter and list of words

[newcoder10]

I am sorry I am posting this twice. I originally posted this under asp.net and then read the comment on top. My sincere aplogy. I beleive this question goes here.


Hi All,

I would like to know what's the best way to write function(global) in asp.net c# Framework 2.0 to check for textbox in a form (i have about 80 textbox on one form and I have many forms and textarea
and I have list of 90 ro 100 words and special chracter that I do not want user to enter. If they enter the item from the list of blocked word or character I want to give them error saying "this character or word in not allowed, please correct it"
The site is getting many hits already so I want to make sure it's not going to slow down a lot. I want to give the message as soon as one of the word or special character listed is found and not want to continue checking further.

e.g of block list word "abc","bbc","bbd","cbc","xbc","~","^","'". the list can change in the future.

I am new to asp.net and appreciate any help.

Thanks
newcoder

[GaryTexmo]

Hopefully someone with more web experience can pop in and help you out, but I'll throw out something that might help you.

Do controls in asp.net still have events? If so, perhaps you can create a listener for the TextChanged event on a textbox. Then simply check to see if what's in the textbox is valid.