Can you identify this Multi-Select dropdown with c

问题:

I'm looking for this control, which is definitely not stock. It's on a website that I won't link so people don't think I'm spamming. In its native state, it looks like this:

and when selected, it drops down like this:

I don't know if the language used is C# or VB, but I know the page has an ASPX extension.

If you can't identify the exact control, can you suggest a way to do something similar in a C#/ASP.Net environment?

回答1:

You can do it both with Javascript/Jquery and server side.

The control you're after called CheckBoxList

it looks like :

if it is hosted within a DIV you can get the scroller thingy.

Regarding :

it is a DIV which , when clicked , shows the div i've talked about.

Example here :