How to fire a change event on a HTMLSelectElement if the new value is the same as the old?
I have the following markup:
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use the "onmouseup" property with each option element. it's verbose, but should work. also, depending on what your function is actually doing, you could arrange things a little differently, assuming the number is important in the handler:
<select> <option onmouseup="handler()" value="1">1</option> //get selected element in handler <option onmouseup="handler(2)" value="2">2</option> //explicitly send the value as argument <option onmouseup="handler(this.value)" value="3">3</option> //same as above, but using the element's value property and allowing for dynamic option value. you could also send "this.innerHTML" or "this.textContent" to the handler, making option value unnecessary </select>讨论(0) -
It's not firing because the value hasn't "changed". It's the same value. Unfortunately, you can't achieve the desired behaviour using the
changeevent.You can handle the
blurevent and do whatever processing you need when the user leaves the select box. That way you can run the code you need even if the user selects the same value.讨论(0)
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