How to make Dropdownlist have multiple checkboxes?
<p>I have an aspx page and within the page I have a dropdownlist. On pageload, I add some choices to the dropdownlist. But I want to be able to select more than one option from this list when I click the dropdownlist, like a window which opens below of it and has a checkboxlist with the same choices. </p>

<p>How can I add multiple checkboxes to the dropdownlist, or make a checkboxlist in this manner? Should I use JQuery? </p>

<p>Thanks in advance.</p>
