Many popular JQuery UI elements append the JavaScript to the Body of the HTML. This does not allow the asp controls to be exposed without some work such as passing control values from DropDownLists to hidden fields in the main Form. A way to work arround this is to simply change the JQuery script you are using.

For Example the Twitter Bootstrap Modal can be changed like this

.appendTo(document.body)
.appendTo('form')

Many popular JQuery UI elements append the JavaScript to the Body of the HTML. This does not allow the asp controls to be exposed without some work such as passing control values from DropDownLists to hidden fields in the main Form. A way to work arround this is to simply change the JQuery script you are using.

For Example the Twitter Bootstrap Modal can be changed like this

.appendTo(document.body)
.appendTo('form')