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出于奇怪的原因,我必须在下拉框中更改所选元素,而不是通过e.selectedIndex,而是通过模拟鼠标和按键事件。向下箭头键通过javascript在选择框中按下按钮
我试过如下:
//e = the dropdown
e.focus();
//my custom function to fire mouse events. This opens the dropdown.
fireMouseEvent("mousedown", e);
//firing the key press, tried it via keydown, keypress and keyup. Nothing works.
var evt = e.ownerDocument.createEvent("KeyEvents");
evt.initKeyEvent("keydown", true, true, null, false, false, false, false, 40, 0);
evt.initKeyEvent("keypress", true, true, null, false, false, false, false, 40, 0);
evt.initKeyEvent("keyup", true, true, null, false, false, false, false, 40, 40);
e.dispatchEvent(evt);
上午我做错什么,或者这是不可能的?
谢谢。
奇怪的原因,确实如此。小心解释,以便我们建议替代? :) – 2011-02-07 15:25:46