I'm having trouble finding anything about how to trigger a modal on postback. This is for a website whereby a button triggers a form in a modal popup. Once the form is submitted, the code behind processes and email and refreshes the page. Upon the page refresh, I'd like to trigger another modal that thanks the user for their submission. So far, I haven't found what I'm looking for using Google. Any help would be greatly appreciated. My experience with vb.net is limited