New answers tagged dropdown
I think a cheap way to make it clear is to add a small, gray text next to 'identity' stating 'multiple selection' or something like that. It can also be stated within the dropdown. Or add checkboxes for options within the dropdown of 'Identity'.
I would say definitely sacrifice the images on mobile. Don't think of it as a sacrifice though, just an efficiency :-) You'll never cater for the full breadth of mobile devices with a large menu and images - keep it simple and get the users where they want to go. By the looks of things the links have very concise titles so the images are just for aesthetic ...
Separate the UX concern from the implementation concern From the UX perspective, what you are looking for is a placeholder. Placeholders are by definition non selectable. Your real problem is how to implement the placeholder in a non-selectable way. That is beyond the scope of UX stackexchange, but this stackoverflow question shows a way to do it. ...
One way could be to place a little [x] next to the select element download bmml source – Wireframes created with Balsamiq Mockups Clicking that [x] will act as select none you can see it in action in my yadcf plugin showcaes (next to each column filter - including select elements) Another way is to do something similar to select2 plugin ...
you can use a plugin like Chosen http://harvesthq.github.io/chosen/
Limiting the number of options as a determiner for which UI input method to use breaks the logic for these elements. Drop-down menus can be single or multi-select and if the intent is to limit the user to a single choice you should use radio buttons and set a default selection. Drop-down menus have issues with long lists of options as well forcing the ...
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