p:pickList验证失败后无法填充数据 问题描述： 在一个dialog里有input和pickList；input里填入非法数据后，提交表单，验证失败；立刻关闭dialog，重新打开它，发现pickList无法填充数据。 同样问题已经出现在 stackoverflow, 目前已在官方论坛提问解决办法还未得到有效回答。

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下面是我做出的解决办法，虽然有点丑陋： This is an old question, but I also encountered this issue recently, and now being helpless. Let's see the p:pickList:

We know the [var="customer"] is an iterator, but when validation error happens, this var is assigned to String type, it's odd. When you close this popup then re-populate it again, you will get an error, messages like this: no property label(value) on type of String... the customer var now is a String, so it has no value nor label property. For now, I use a tricky way, it won't work out always, it depends on your code: Assume that the value and label are unique, set customersList type of List String, customersList binds the label, find the value of the label when submit at the backend; Why this way can avoid re-populate exception, that's because the iterator is always type of String, no matter validation error occurs or not. Hope this can help the need.