带有 UI 对话框并显示有关 <p> 元素的信息的注册页面

Question

我需要在 HTML 上制作一个注册页面，用户必须先在该页面上注册，然后 he/she 才能使用该网页。当页面打开时，除了 "Registration" 按钮外没有其他任何东西，当单击该按钮时，jQuery UI 对话框会询问用户姓名和用户名。

如果用户输入了两个值并且每个值字段数据的长度至少为 5 个字符，则数据正确并且可以通过 "Save" 按钮关闭对话框。对话框也可以通过 "Cancel" 按钮关闭，该按钮不存储信息。如果数据错误，则无法关闭对话框并向用户显示某种错误消息。

注册成功后，对话框关闭，对话框下方显示网页内容。网页上方显示p元素的注册用户信息。

所以...

1.How我能transfer/show在web/HTML页面顶部注册用户信息成功吗？

到目前为止，这是我的代码：

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>jQuery UI Dialog - Modal form</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
  <link rel="stylesheet" href="/resources/demos/style.css">
  <style>
    label, input { display:block; }
    input.text { margin-bottom:12px; width:95%; padding: .4em; }
    fieldset { padding:0; border:0; margin-top:25px; }
    h1 { font-size: 1.2em; margin: .6em 0; }
    div#users-contain { width: 350px; margin: 20px 0; }
    div#users-contain table { margin: 1em 0; border-collapse: collapse; width: 100%; }
    div#users-contain table td, div#users-contain table th { border: 1px solid #eee; padding: .6em 10px; text-align: left; }
    .ui-dialog .ui-state-error { padding: .3em; }
    .validateTips { border: 1px solid transparent; padding: 0.3em; }
  </style>
  <script src="https://code.jquery.com/jquery-1.12.4.js"></script>
  <script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
  <script>
  $( function() {
    var dialog, form,

      // From http://www.whatwg.org/specs/web-apps/current-work/multipage/states-of-the-type-attribute.html#e-mail-state-%28type=email%29
      //emailRegex = /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/,
      name = $( "#name" ),
      password = $( "#password" ),
      allFields = $( [] ).add( name ).add( password ),
      tips = $( ".validateTips" );

    function updateTips( t ) {
      tips
        .text( t )
        .addClass( "ui-state-highlight" );
      setTimeout(function() {
        tips.removeClass( "ui-state-highlight", 1500 );
      }, 500 );
    }

    function checkLength( o, n, min, max ) {
      if ( o.val().length > max || o.val().length < min ) {
        o.addClass( "ui-state-error" );
        updateTips( "The form information " + n + " has to have a length " + " between " +
          min + " and " + max + "." );
        return false;
      } else {
        return true;
      }
    }

    function checkRegexp( o, regexp, n ) {
      if ( !( regexp.test( o.val() ) ) ) {
        o.addClass( "ui-state-error" );
        updateTips( n );
        return false;
      } else {
        return true;
      }
    }

    function addUser() {
      var valid = true;
      allFields.removeClass( "ui-state-error" );

      valid = valid && checkLength( name, "username", 5, 16 );
      valid = valid && checkLength( password, "password", 5, 16 );

      valid = valid && checkRegexp( name, /^[a-z]([0-9a-z_\s])+$/i, "Username may consist of a-z, 0-9, underscores, spaces and must begin with a letter." );
      valid = valid && checkRegexp( password, /^([0-9a-zA-Z])+$/, "Password field only allow : a-z 0-9" );

      if ( valid ) {
        $( "#users tbody" ).append( "<tr>" +
          "<td>" + name.val() + "</td>" +
          "<td>" + password.val() + "</td>" +
        "</tr>" );
        dialog.dialog( "close" );
      }
      return valid;
    }

    dialog = $( "#dialog-form" ).dialog({
      autoOpen: false,
      height: 400,
      width: 350,
      modal: true,
      buttons: {
        "Save": addUser,
        Cancel: function() {
          dialog.dialog( "close" );
        }
      },
      close: function() {
        form[ 0 ].reset();
        allFields.removeClass( "ui-state-error" );
      }
    });

    form = dialog.find( "form" ).on( "submit", function( event ) {
      event.preventDefault();
      addUser();
    });

    $( "#create-user" ).button().on( "click", function() {
      dialog.dialog( "open" );
    });


  } );
  </script>
</head>
<body>
<p id="information"></p>

<div id="dialog-form" title="Registration">
  <p class="validateTips">Give name and username</p>

  <form>
    <fieldset>
      <label for="name">Name</label>
      <input type="text" name="name" id="name" value="" class="text ui-widget-content ui-corner-all" placeholder="name">
      <label for="password">Username</label>
      <input type="password" name="password" id="password" value="" class="text ui-widget-content ui-corner-all" placeholder="username">

      <!-- Allow form submission with keyboard without duplicating the dialog button -->
      <input type="submit" tabindex="-1" style="position:absolute; top:-1000px">
    </fieldset>
  </form>
</div>


<div id="users-contain" class="ui-widget">
    <thead>
    </thead>
    <tbody>
      <tr>
        <td></td>
        <td></td>
        <td></td>
      </tr>
    </tbody>
  </table>
</div>
<button id="create-user">Registrate</button>


</body>
</html>

Answer 1

您缺少起始 table 标签。

更改以下代码：

<div id="users-contain" class="ui-widget">
    <thead>
    </thead>

到下面（添加 ID 为 "users" 的缺失 table 标签。

<div id="users-contain" class="ui-widget">
   <table id="users">
    <thead>
    </thead>

带有 UI 对话框并显示有关 <p> 元素的信息的注册页面

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