Here Mudassar Ahmed Khan has explained with an example, how to display Confirmation Box (Dialog) before Form Submit in ASP.Net MVC Razor.

The JavaScript Confirmation Message Box (Dialog) will be displayed using jQuery by attaching a Submit event handler to the Form.

When the Submit button is clicked, the Confirmation Message Box (Dialog) with OK (Yes) and Cancel (No) buttons will be displayed, if the User clicks OK (Yes) button only then the Form will be submitted and the Controller’s Action method will be called.