如何在没有“#”的情况下使用onclick防止重新加载? [英] How to prevent reload with onclick without "#"?
问题描述
我希望用链接添加一些指令 - onclick调用显示简单警告框的脚本。如果我这样做...
I wish to put some instructions with a link - onclick calling a script that display a simple alert box. If I did like this...
<label for="arquivo">Máximo de 1MB, observe os <a href="" onclick="ajudaUpload();">tipos permitidos</a>.</label>
即使返回false也会重新加载页面,如果我这样做的话......
the page is reloaded even with a return false, and if I did like this...
<label for="arquivo">Máximo de 1MB, observe os <a href="#" onclick="ajudaUpload();">tipos permitidos</a>.</label>
带有#符号,页面滚动到顶部,#被添加到请求参数。有没有第三种方法可以在不重新加载,滚动和垃圾的情况下完成它?
with the "#" symbol, the page is scrolled to the top and "#" is added to query string. Is there a third way to do it without reloading, scrolling and garbage?
推荐答案
通话后返回false:
Return false after the call:
<a href="" onclick="ajudaUpload();return false;">tipos permitidos</a>
或者如果你的函数返回false,那么你可以返回函数的结果:
Or if your function returns false then you can return the result of the function:
<a href="" onclick="return ajudaUpload();">tipos permitidos</a>
仅仅在函数中返回false是不够的,你需要从点击处理程序实际返回false 。
It's not enough to just return false in the function, you need to actually return false from the click handler.
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