本文介绍了需要选择滑轨的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在rails视图中部分看到了这样的select标签:
I see such select tag in my rails view partial:
= f.select :shipping_id, options_for_select(["Select"] + @shippings.map{ |c| [c.name, c.id]}), :required => true我不会做的是这样的: 如果是页面加载,则此选择仅显示请选择我:D",并且我必须从选择中选择一些值,而不是此值(请选择我:D"),并且如果我已选择或默认为请选择我:D" ",我收到错误消息,或者类似的东西? 如果我单击此选择,它一定是占位符,哪个值隐藏了?我知道如何在jQuery中执行此操作,但想在Rails视图中执行
And what i wont to do is this: If page load's, this select show only "Select me please :D", and i must select some value from select, not this ("Select me please :D"), and if i have selected or default "Select me please :D", i get error, or something like this? It must be something like placeholder, which value hides, if i click on this select? I know how to do this in jQuery, but wanna do in rails view
推荐答案= f.select :shipping_id, [["Select Me", "Value for Jquery to attach to"]] + @shippings.map{ |c| [c.name, c.id]}, {:required => true}
这是你的意思吗?
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需要选择滑轨
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