如何从AJAX事件中获取源元素? [英] How to get source element from AJAX event?
问题描述
我有一个控件行的表。我希望在输入更改时处理行中的其他元素:
I have a table with controls in rows. I want to process another elements in the row when the input is changed:
<p:inputText value="#{item.text}">
<p:ajax event="change" onstart="refreshColumn(this)"/>
</p:inputText>
但是,'this'是我在这里无法识别的:
However, 'this' is something that I can't identify here:
Object {encodeViewState = function(),updateState = function(),updateElement = function(),mehr ...}
Object { encodeViewState=function(), updateState=function(), updateElement=function(), mehr...}
当然它不包含 source
属性,因为该链接会建议: http://forum.primefaces.org/viewtopic.php?f=3&t=14871
Surely it doesn't contain source
attribute, as that link would suggest: http://forum.primefaces.org/viewtopic.php?f=3&t=14871
是否有可能(如何)从获取触发事件的元素p:ajax
回调?
Is it possible (how) to get the element that triggered the event from p:ajax
callbacks?
推荐答案
您可以传递事件
而不是....
You can pass the event
instead....
XHTML
XHTML
<p:inputText value="#{item.text}">
<p:ajax event="change" onstart="refreshColumn(event)"/>
</p:inputText>
JS
JS
function refreshColumn(event) {
// "event.target.id" is the id of the inputText
console.log(event.target.id)
}
您在问题中引用的对象是 PrimeFaces.ajax.AjaxUtils
。
PrimeFaces ajax /回调函数是 PrimeFaces.Behavior s。
The PrimeFaces ajax/callback functions are PrimeFaces.Behaviors.
至于你可以传递的更多信息:
As for what you can pass more:
PrimeFaces.bc = function(source, event, ext, behaviorsArray) {
PrimeFaces.Behavior.chain(source, event, ext, behaviorsArray);
}
更改事件的输出应该是这样的(仅传递事件) :
The output of the change event should be something like this (passing only event):
PrimeFaces.bc(this, event, ext, ['PrimeFaces.ab({source:\'form:inputId\',event:\'change\',process:\'form:inputId\',onstart:function(cfg){refreshColumn(event);}}, arguments[1]);']);
希望这有帮助。
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