What is the best way to implement a dynamic dropdown list in an MVC3 application that is dependent on a specific element being selected?

I am trying to add a new DropDownFor on my View, but it should only appear if a specific SelectList item from the first DropDownFor is selected.

Just to make things clear, let's say my first DropDownFor has two options: "A" and "B". If "B" is chosen, then I want the additional DropDownFor to be displayed on the page. However, if "A" is chosen, then I don't want any further action to occur on the page.

Does anyone have suggestions on how I can achieve this?

Answer №1

Here is a solution that may help:

Javascript code (utilizing jQuery)

$(document).ready(function() {
    $('#choiceTwo').change(function (){
        if($(this).val() === 'x') {
            $('#selections').append("<select><option>newcollection</option></select>");
        }            
    });
});​

HTML Code

<div id="selections">
    <select id="choiceTwo">
        <option>y</option>
        <option>x</option>
    </select>
​</div>​

See the example implementation on JSFiddle -- http://jsfiddle.net/AbCdE/1/

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