I would like to know the method of using RegisterForEventValidation in asp.net

My problem is this.

If I enable eventvalidation, then changing the controls using javascript and then posting the information back to the server later on throws up an error.

But If I disable event validation, the data present/selected in the controls is not available in the event handlers in code behind.

So, how should one resolve such issues?

Also, are there are any good articles that explain the issue and a resolution in detail? Tried googling. Came across many articles. But nothing that matched my expectations.

Thanks!