To use onchange event of dropdownlist on asp.net MVC

Lots of us are still learning the MVC framework. Some are facing difficulties on how to interact the controller and the views. Probably one of the common problems we encounter was dealing with the dropdownlist. In a scenario that you will be having two dropdownlist linking to each other
(dropdown A and dropdown B). And on the onchange event of the dropdown A another set of values will be loaded on the dropdown B.

You don’t want to post the form containing the two dropdown lists back to the server each and every time a user selects a new value from dropdown A. That would create a really bad user experience. Instead, you want to update the list of dropdown B after a new value of dropdown A is selected without a form post.


so probably you be needed cascading drop-downs.

A good sample.

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