modalpopupextender and commas appearing in my textbox asp.net

Question

Some weird stuff is happening, I am converting an application that used to use javascript to open another web page in a tiny window for data input to use a ModalPopupExtende

Answer 1

The solution is to get the modal popup out of the main update panel. Once Do that the commas will go away. If you truly need an update panel inside of the modal popup, create one of it's own inside that panel.