防止选择下拉菜单打开但允许其事件触发 [英] Prevent select dropdown to open but allow its events to fire

问题描述

有什么办法可以捕获 html 选择事件，并阻止 html 选择下拉菜单打开?(禁用 html select 被排除，因为事件也将被禁用.)

Is there any way I can trap html select events, and prevent the html select dropdown to open? (Disabling html select is ruled out since the events will be disabled too.)

推荐答案

我怀疑这实际上会阻止它打开，但它会确保 DropDown 始终保持相同的值:

I doubt this will actually prevent it from opening, but it will ensure that the DropDown will always maintain the same value:

<select name="theselect" onchange="this.selectedIndex = 1;">
    <option value="Red">Red</option>  
    <option value="Green" selected="selected">Green</option>  
    <option value="Blue">Blue</option> 
</select>

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