如何避免在使用Javascript的多选框中单击Ctrl键? [英] How to avoid the need for ctrl-click in a multi-select box using Javascript?
问题描述
< select multiple =multiple>
),除了我不希望用户不得不按住控制键进行多个选择。换句话说,我想要左键单击可以切换光标下面的< option>
元素,而不需要改变其他任何一个。换句话说,我想要的东西看起来像一个组合列表框,但行为像一组复选框。 有人可以建议一个简单的方式来做这个在Javascript ?谢谢。
检查这个小提琴: http://jsfiddle.net/techfoobar/xQqbR/
您基本上需要覆盖 mousedown
< option> 的事件,并切换选定的
属性。
$('option')。mousedown(function(e){
e.preventDefault();
$(this).prop 'selected',!$(this).prop('selected'));
return false;
});
为了简单起见,我给了选项作为上面的选择器。您可以调整它以匹配特定< select>
元素下的< option> s
。例如: $('#mymultiselect option')
I thought this would be a simple hack, but I've now been searching for hours and can't seen to find the right search term. I want to have an ordinary multiple select box (<select multiple="multiple">
) except I don't want the user to have to hold down the control key to make multiple selections.
In other words, I want a left click to toggle the <option>
element that's under the cursor without changing any of the others. In other other words, I want something that looks like a combo list box but behaves like a group of check boxes.
Can anybody suggest a simple way to do this in Javascript? Thanks.
Check this fiddle: http://jsfiddle.net/techfoobar/xQqbR/
You basically need to override the mousedown
event for each <option>
and toggle the selected
property there.
$('option').mousedown(function(e) {
e.preventDefault();
$(this).prop('selected', !$(this).prop('selected'));
return false;
});
For simplicity, I've given 'option' as the selector above. You can fine tune it to match <option>s
under specific <select>
element(s). For ex: $('#mymultiselect option')
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