jsf - 如何在没有java脚本的情况下重置primefaces commandButton上的下拉菜单？

Question

我想<p:selectOneMenu>在primeface中重置。我用type="reset"这个只能重置文本字段而不是selectonemenu. 我的代码

    <p:panel id="Applyleave_panel" >
      <p:selectOneMenu id="leavetype" value="#{requestbean.leavetype}" required="true" style="width:50%;">
        <f:selectItem itemLabel="Select type" itemValue="" /> 
        <f:selectItems value="#{requestbean.leave_type}" />
      </p:selectOneMenu>
    </panel>
  <p:commandButton value="Reset" type="reset"/>

Answer 1

鉴于您的组件位于表单内，您可以使用p:resetInput 。

<p:commandButton value="Reset" update=":form" immediate="true">
                    <p:resetInput target=":form" />
                </p:commandButton>

编辑：您也可以定位p:panel组件。

<p:commandButton value="Reset" update=":Applyleave_panel" immediate="true">
                        <p:resetInput target=":Applyleave_panel" />
                    </p:commandButton>

Answer 2

我使用以下

                <p:commandButton id="resetSearchCir" type="reset"
                            value="#{button.reset}" immediate="true">
                            <f:ajax event="click"
                                listener="#{searchBean.resetActionListener}" render="@form" />          
                        </p:commandButton>



                 public void resetActionListener(AjaxBehaviorEvent event) {
                    LOG.info("Reset button clicked...");
                    setResetClicked(true);
                    // re-initialise your form field objects which you want to reset
                    logWarn("All values have been reset. Please enter the new values to search again.");
                    }