如何更新p的标签：selectCheckboxMenu没有成分被封闭在primefaces AJAX调用之后？

问题描述

还有，当我试图动态生成的支持bean标签出现的一个问题。的问题是，在出现的下拉消失对于每个选择，但标签被正确地更新。是否有解决方法吗？

＆LT;电话号码：selectCheckboxMenu值=＃{formBean.selectedMovies}标签=＃{formBean.movi​​esLabel} ID =电影＆GT;    ＆LT; F：selectItems的值=＃{formBean.movi​​es}＆GT;＆LT; / F：selectItems的＆GT;    ＆LT;电话号码：AJAX更新=电影监听器=＃{formBean.populateLabel}＆GT;＆LT; / P：AJAX＆GT;＆LT; / P：selectCheckboxMenu＆GT;

和

  //备份豆
公共无效populateLabel（）{
    / *与所选的选项填充标签* /
    moviesLabel =新的String（）;
    如果（selectedMovies.size（）== 0）{
        moviesLabel =选择;
    } 其他 {
        的for（int i = 0; I＆LT; selectedMovies.size（）;我++）{
            如果（moviesLabel.length（）== 0）{
                moviesLabel = selectedMovies.get（ⅰ）;
            } 其他 {
                moviesLabel = moviesLabel +，+ selectedMovies.get（ⅰ）;
            }
        }
    }
}
 

解决方案

下面是如何

添加 widgetVar =someVarName您号码：selectCheckboxMenu

和修改号码：加入的onComplete = AJAX someVarName.show（）

完成code：

 ＆LT;电话号码：selectCheckboxMenu widgetVar =someVarName值=＃{usersManagmentPage.selectedMovies}
        标签=＃{usersManagmentPage.movi​​esLabel}ID =电影＆GT;
    ＆LT; F：selectItems的值=＃{usersManagmentPage.movi​​es}＆GT;＆LT; / F：selectItems的＆GT;
    ＆LT;电话号码：阿贾克斯的onComplete =someVarName.show（）监听器=＃{usersManagmentPage.populateLabel}更新=电影＆GT;＆LT; / P：AJAX＆GT;
＆LT; / P：selectCheckboxMenu＆GT;
 

---

在最新的PrimeFaces 你应该使用的onComplete =PF（'someVarName'）。显示（）而不是的onComplete =someVarName.show（）

There is one problem occurring when I am trying to dynamically generate the label from the backing bean. The problem is that the dropdown that appears vanishes for each selection but the label is updated properly. Is there a workaround for this?

<p:selectCheckboxMenu value="#{formBean.selectedMovies}" label="#{formBean.moviesLabel}"    id="Movies" >
    <f:selectItems value="#{formBean.movies}" ></f:selectItems>
    <p:ajax update="Movies" listener="#{formBean.populateLabel}"></p:ajax>
</p:selectCheckboxMenu>

and

//Backing bean 
public void populateLabel() {
    /* Populating the label with the selected options */
    moviesLabel = new String("");
    if (selectedMovies.size() == 0) {
        moviesLabel = "Select";
    } else {
        for (int i = 0; i < selectedMovies.size(); i++) {
            if (moviesLabel.length() == 0) {
                moviesLabel = selectedMovies.get(i);
            } else {
                moviesLabel = moviesLabel + "," + selectedMovies.get(i);
            }
        }
    }
}

解决方案

Here is how

add widgetVar="someVarName" to your p:selectCheckboxMenu

and modify your p:"ajax by adding oncomplete="someVarName.show()"

complete code :

<p:selectCheckboxMenu widgetVar="someVarName" value="#{usersManagmentPage.selectedMovies}" 
        label="#{usersManagmentPage.moviesLabel}"   id="Movies" >
    <f:selectItems value="#{usersManagmentPage.movies}" ></f:selectItems>
    <p:ajax oncomplete="someVarName.show()" listener="#{usersManagmentPage.populateLabel}" update="Movies" ></p:ajax>
</p:selectCheckboxMenu>

---

In latest PrimeFaces you should use oncomplete="PF('someVarName').show()" instead of oncomplete="someVarName.show()"

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