Question

这是我的yesNoPanel课程，扩展了Panel：

public class YesNoPanel extends Panel {

/**
 * 
 */

private String password = "Password";
public String getPassword() {
    return password;
}

public void setPassword(String password) {
    this.password = password;
}



private static final long serialVersionUID = -8356163236155431543L;

public String getPw()
  {
         String pw=ConfigurationHelper.getConfigurationProperty("REFRESH_CACHE_PASSWORD", "");
         return pw;
  }

public YesNoPanel(String id, String message, final ModalWindow modalWindow, final ConfirmationAnswer answer) {
    super(id);

    final Form yesNoForm = new Form("yesNoForm");
    final String wrongPw = "Wrong Password";


    final TextField<String> passwordString = new RequiredTextField<String>("password", new PropertyModel(this, password));

    passwordString.add(new AjaxFormComponentUpdatingBehavior("onchange") { 
        @Override 
        protected void onUpdate(AjaxRequestTarget target) {
        }
    });


    MultiLineLabel messageLabel = new MultiLineLabel("message", message);
    yesNoForm.add(messageLabel);
    final Label wrongPW = new Label("WrongPassword", wrongPw );
    modalWindow.setTitle("Please confirm");
    modalWindow.setInitialHeight(200);
    modalWindow.setInitialWidth(350);


    AjaxButton yesButton = new AjaxButton("yesButton", yesNoForm) {
        private static final long serialVersionUID = -3827487963204274386L;
        @Override
        protected void onSubmit(AjaxRequestTarget target, Form form) {
            if (target != null && password.equals(getPw())) {
                answer.setAnswer(true);
                modalWindow.close(target);
            }else if(target != null && !password.equals(getPw())){
                answer.setAnswer(false);
                wrongPW.setVisible(true);
                target.add(wrongPW);
            }
        }
    };

    AjaxButton noButton = new AjaxButton("noButton", yesNoForm) {
        @Override
        protected void onSubmit(AjaxRequestTarget target, Form form) {
            if (target != null) {
                answer.setAnswer(false);
                modalWindow.close(target);
                wrongPW.setVisible(false);
            }
        }
    };

    yesNoForm.add(yesButton);
    yesNoForm.add(noButton);
    yesNoForm.add(passwordString);
    add(yesNoForm);
    wrongPW.setOutputMarkupPlaceholderTag(true);
    wrongPW.setVisible(false);
    add(wrongPW);

  }

}

和有问题的HTML：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns:wicket>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
    <title></title>
</head>
<body>
    <wicket:panel>
        <form wicket:id="yesNoForm" action="">
            <span wicket:id="message">Are you sure?</span>
            <table style="width: 65%;" align="center">
                <tr>
                    <td align="left">
                        <input type="submit" wicket:id="noButton" value="No" />
                    </td>
                    <td align="right">
                        <input type="text" wicket:id="password" size = "20" />
                    </td>
                    <td align="right">
                        <input type="submit" wicket:id="yesButton" value="Yes" />
                    </td> 
                </tr>
            </table>

        </form>
       <font color="red"><p align="center" wicket:id="WrongPassword"></p> </font>
    </wicket:panel>
</body>

就像现在一样，当用户打开模态窗口时，输入框中会填充wicket id password - 这就是字符串“Password”。如果输入留空（或使用占位符，这是首选），Yes或No按钮不会执行任何操作。为什么会这样，我该如何解决呢？

Answer 1

您应该使用TextField而不是RequiredTextField。使用带有空白输入的RequiredTextField，按钮不会执行任何操作。

Wicket - 当值为null时，提交按钮功能出现问题

1 个答案: