当发生验证错误时,在JSF 2.0中突出显示一个inputText [英] Highlight an inputText in JSF 2.0 when a validation error occurs
问题描述
我有一个有很多inputText的表单,我想要的是突出那些没有填充正确数据的人。
我试图使用'component 。
这是代码:
< h:column>
< h:outputText value =#{msg ['Nom']}/> ;: *
< / h:column&
< h:column>
< h:inputText value =#{creerPersonne1.nom}id =nomstyle =#{not nom.valid?'border-color:red;':'border-color:black; '}>
< f:validateRegex
pattern =^ [a-zA-Z] + $>< / f:validateRegex>
< rich:validator />
< / h:inputText>
< / h:column>
这是结果:
img src =https://i.stack.imgur.com/pDybL.pngalt =始终无效>
请注意,该字段也会突出显示
您应该使用 component.valid
而不是 nom.valid
。
component
是当前输入组件的隐式EL对象。并且 component.valid
调用服务器端组件的 isValid()
方法。 id
参数不能以这种方式使用。
所以你应该更改你的代码如下:
style =#{component.valid?'border-color:black;':'border-color:red;'}
(不相关,但应该更好地使用样式类而不是硬编码样式有效的检查适用于 styleClass
属性)。
I have a form with a lot of inputText, what I want is to highlight those who are not being filled with correct data.
I tried to use 'component.valid' but it always return that the field is invalid (i.e. fields are always red).
this is the code :
<h:column>
<h:outputText value="#{msg['Nom']}" />: *
</h:column>
<h:column>
<h:inputText value="#{creerPersonne1.nom}" id="nom" style="#{not nom.valid ? 'border-color:red;' : 'border-color:black;'}">
<f:validateRegex
pattern="^[a-zA-Z]+$"></f:validateRegex>
<rich:validator />
</h:inputText>
</h:column>
this is the result :
note that the field is also highlighted when the page is loaded for the first time.
You should use component.valid
instead of nom.valid
.
component
is an implicit EL object for the current input component. And component.valid
calls the isValid()
method of the server side component. The id
argument cannot be used this way.
So you should change your code as follows:
style="#{ component.valid ? 'border-color:black;' : 'border-color:red;'}"
(Not related but you should better use style classes instead of hard coded styles. The valid check works for the styleClass
attribute as well).
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