-
-
Save hopbit/6a7c03afc6c55813673e to your computer and use it in GitHub Desktop.
attach unselect behaviour to multibox, original source: http://jsbin.com/kuneg/1/edit, after modifications: http://jsbin.com/kuneg/15/edit
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://code.jquery.com/jquery-1.10.2.min.js"></script> | |
| <meta charset=utf-8 /> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <select size="10" multiple id="myMultiSelectBox"> | |
| <option value="1" selected>One</option> | |
| <option value="2" selected>Two</option> | |
| <option value="3" selected>Three</option> | |
| <option value="4">Four</option> | |
| <option value="5">Five</option> | |
| <option value="6" selected>Six</option> | |
| <option value="7">Seven</option> | |
| <option value="8">Eight</option> | |
| <option value="9">Nine</option> | |
| </select> | |
| <script> | |
| attachUnselectBehaviour($("#myMultiSelectBox")); | |
| function attachUnselectBehaviour(selectBoxObj) { | |
| var selected = {}; | |
| // initialize with previously selected values | |
| var selectedValues = selectBoxObj.val(); | |
| var arrayLength = selectedValues.length; | |
| for (var i = 0; i < arrayLength; i++) { | |
| selected[selectedValues[i]] = true; | |
| } | |
| // console.log(selected); | |
| selectBoxObj.click(function(e) { | |
| var $this = $(this), | |
| options = this.options, | |
| option, | |
| value, | |
| n; | |
| // Find out what option was just added | |
| value = $this.val(); | |
| // Re-apply the selections | |
| for (n = 0; n < options.length; ++n) { | |
| option = options[n]; | |
| if (option.value == value) { | |
| // The one being updated | |
| selected[value] = !selected[value]; | |
| } | |
| // One of the others | |
| option.selected = !!selected[option.value]; | |
| } | |
| return false; | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment