我对 wicket 还很陌生，刚刚遇到 setRequired。

我有 5 个文本字段

    final TextField<String> mfnField = new TextField<>("mfn", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getMfn())); 
        form.add(mfnField); 
        mfnField.setOutputMarkupId(true); 
        form.add(new FdsInfoButton("mfn.infoButton", new ResourceModel("mfn.infoButton"))); 
        form.add(new FormComponentFeedbackPanel("mfnFeedbackPanel", mfnField)); 
 
final TextField<String> pbField = new TextField<>("pid", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getPBId())); 
        form.add(pbField); 
        pbField.setOutputMarkupId(true); 
        form.add(new FormComponentFeedbackPanel("pidFeedbackPanel", pbField)); 
 
        final TextField<String> gpidField = new TextField<>("gpid", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getGpid())); 
        form.add(gpidField); 
        gpidField.setOutputMarkupId(true); 
        form.add(new FormComponentFeedbackPanel("gpidFeedbackPanel", gpidField)); 
 
        final TextField<String> tidField = new TextField<>("tid", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getTransaction_id())); 
        form.add(tidField); 
        form.add(new FdsInfoButton("tid.infoButton", new ResourceModel("tid.infoButton"))); 
        form.add(new FormComponentFeedbackPanel("tidFeedbackPanel", tidField)); 
final TextField<String> ibanField = new TextField<>("iban", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getIban())); 
        form.add(ibanField); 
        ibanField.setOutputMarkupId(true); 
        form.add(new FormComponentFeedbackPanel("ibanFeedbackPanel", ibanField));    

我有一个 fromfield 和一个 tofield:

final DateTimePicker fromInput = new DateTimePicker("from", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getFromDate()), 
                DateTimePicker.START_OF_DAY); 
        form.add(fromInput); 
        form.add(new FormComponentFeedbackPanel("fromFeedbackPanel", fromInput)); 
 
        final DateTimePicker toInput = new DateTimePicker("to", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getToDate()), 
                DateTimePicker.END_OF_DAY); 
        form.add(toInput); 
        form.add(new FormComponentFeedbackPanel("toFeedbackPanel", toInput)); 

5 个文本字段中:

• 如果在前四个中输入了任何内容，那么我还需要输入 fromfield 和 tofield，因此对于此 setRequired 应该为 true
• 但如果 tidField 中输入了任何内容，无论其他文本字段是空还是已填充，setRequired 对于 frominput 和 toinput 都应该为 false。

我的问题是如何设置 true 和 false。

或者除了 setRequired 之外我还可以使用其他东西吗？

请您参考如下方法:

我找到了解决办法: 我必须使用 isRequired 而不是 setRequired

final DateTimePicker fromInput = new DateTimePicker("from", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getFromDate()), 
                DateTimePicker.START_OF_DAY) { 
            /** 
             * 
             */ 
            private static final long serialVersionUID = 1L; 
 
            @Override 
            public boolean isRequired() { 
                return Strings.isBlank(tidField.getConvertedInput()); 
            } 
 
        }; 
        form.add(fromInput); 
        form.add(new FormComponentFeedbackPanel("fromFeedbackPanel", fromInput)); 
 
        final DateTimePicker toInput = new DateTimePicker("to", 
                model(criteriaModel, on(RechercheServiceFunctionCriteria.class).getToDate()), 
                DateTimePicker.END_OF_DAY) { 
 
            /** 
                     * 
                     */ 
            private static final long serialVersionUID = 1L; 
 
            @Override 
            public boolean isRequired() { 
                return Strings.isBlank(tidField.getConvertedInput()); 
            } 
        }; 
        form.add(toInput);