asp.net validator that allows everything but not numbers

i thnik you are looking like for strong password matching

if yees then follow

http://www.aspsnippets.com/Articles/Implement-Password-Policy-using-Regular-Expressions-and-ASPNet-RegularExpression-Validator.aspx


or http://www.codingfusion.com/Post/Validate-strong-passwords-using-RegularExpressionV

I've seen what you send me, but I could find something that fits what I want.
I want a regex that allows all letters and all special characters incluiding space (this is done with ^[^0-9]+$  )  but now the thing that I can't get to work is that it doesn't allow the user to only enter spaces, the textbox has to have at least one letter or special character but not only the space.


Can you help me with this?


I'm really thankful 

or you can use

<asp:TextBox id="txtbox" onkeypress="return isNumberKey(event)" runat="server"/>

Thanks! This works very well, but the only problem I have is that it allows that the user inputs only one space.


Is there a way to also validate that it has no spaces on the begnin?


Thank you very much
Sabrina

use below javascript