Question

Is there any way to know by javascript that textbox has changed its valid state, in this situation as in the image. If all the validation in a rows is valid, we will hide that row but if any validation in that row is not valid, we will show that row.

What i will do now is to use onblur on each textbox but i doubt that is there is a better way or not.

Answer 1

You could add a listener to your form using setInterval. I have cooked up an basic example of that @this jsfiddle.