我有个问题,当我向复选框中添加标记属性“for”和标记属性“id”来绑定两个组件(复选框和标签)时,会引发Ajax调试错误:“无法为事件绑定侦听器”,因为元素不在DOM中。
下面是复选框代码:
AjaxCheckBox checkBox = new AjaxCheckBox("variantBox", variantModel) {
@Override
protected void onUpdate(AjaxRequestTarget target) {
if (variantModel.getObject()) {
target.appendJavaScript(";utils_showElement(" + item.getModelObject().getId() + ");");
} else {
target.appendJavaScript(";utils_hideElement(" + item.getModelObject().getId() + ");");
}
}
};
我在此代码中将属性修饰符添加到了复选框中:
checkBox.add(new VariantElementAttributeModifier("id",Model.of("checkbox_"+Long.toString(item.getModelObject().getId()))));
在这里,我用Label做了同样的操作:
Label headerLabel = new Label("content", Model.of(item.getModelObject().getContent()));
headerLabel.add(new VariantElementAttributeModifier("for",Model.of("checkbox_"+Long.toString(item.getModelObject().getId()))));
这里是 html代码:
<!DOCTYPE html>
<html lang="en" xmlns:wicket="http://maven.apache.org/FML/1.0.1">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<wicket:panel>
<section class="column column_form">
<div class="column__title">Опросный лист</div>
<div wicket:id="container" class="column__content" style="height:
475px;">
<div wicket:id="list" class="form">
<div wicket:id="contentArea"></div>
<div wicket:id="helpLabel"></div>
<wicket:fragment wicket:id="variantFragment"
class="form__item checkbox">
<div class="checkbox__label" wicket:id="content">
</div>
<input class="checkbox__input" type="checkbox"
wicket:id="variantBox" />
<!--<input class="checkbox__input" type="checkbox"
name="input-name" id="checkbox_1"/>-->
<!--<label class="checkbox__label" for="checkbox_1"><b>текст</b><span>текст текст</span><span>текст текст</span></label>-->
</wicket:fragment>
<wicket:fragment wicket:id="Textfragment"
class="form__item form__textfield">
<label wicket:id="textlabel">лейбл</label>
<input type="text" wicket:id="textfield" />
</wicket:fragment>
</div>
</div>
</section>
</wicket:panel>
</body>
</html>
这是属性修饰符代码:
package ru.simplexsoftware.constructorOfDocuments.Utils;
import org.apache.wicket.AttributeModifier;
import org.apache.wicket.model.IModel;
public class VariantElementAttributeModifier extends AttributeModifier {
public VariantElementAttributeModifier(String attribute, IModel<?> replaceModel) {
super(attribute, replaceModel);
}
}
感谢帮助!