I took look at http://www.techfeed.net/blog/index.cfm/2006/2/27/ColdFusion-is-better-than. What this author missed out is that first it’s asp tutorial, not asp.net. And 2nd: there’s a validation webcontrol in asp.net which minimizes any possible work for the validation to work.
Check out this site for that: http://samples.gotdotnet.com/quickstart/aspplus/doc/webvalidation.aspx
I just wanted to note that asp.net has those kinds of validation feature already and not to mislead readers to the wrong fact regarding asp.net. The article seemed to went to the conclusion stright.
It’s just my 2cents.