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Back to my second question. If I do this in the code behind does that prevent someone from viewing my source code and figuring out what key codes to use to enable the buttons?


Thanks,

Thanks. I have the \ key working but I cannot get the ] key. Here is what I have now if (/^[a-zA-Z0-9- `!@#$%^&*()_+-={}|:"'?>

Thanks

you have to provide a escape sequence for these characters exampke if its \ then give it as \\  

For matching special characters u can also use \ W representation


you can also regular expression validator to perform the same operation


In server code if you want to handle u can call server side code on change events but this is unnecessary as enabling a button is a simple step which doesn't need a server call