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jQuery UI 實例– 自動完成(Autocomplete)

根據用戶輸入值進行搜索和過濾,讓用戶快速找到並從預設值列表中選擇。

如需了解更多有關autocomplete部件的細節,請查看API文檔自動完成部件(Autocomplete Widget)

本章節使用到search.php下載

默認功能

當您在輸入域中輸入時,自動完成(Autocomplete)部件提供相應的建議。 在本實例中,提供了編程語言的建議選項,您可以輸入"ja" 嘗試一下,可以得到Java 或JavaScript。

數據源是一個簡單的JavaScript 數組,使用source 選項提供給部件。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 默認功能</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <script>
  $(function() {
    var availableTags = [
      "ActionScript",
      "AppleScript",
      "Asp",
      "BASIC",
      "C",
      "C++",
      "Clojure",
      "COBOL",
      "ColdFusion",
      "Erlang",
      "Fortran",
      "Groovy",
      "Haskell",
      "Java",
      "JavaScript",
      "Lisp",
      "Perl",
      "PHP",
      "Python",
      "Ruby",
      "Scala",
      "Scheme"
    ];
    $( "#tags" ).autocomplete({
      source: availableTags
    });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label for="tags">標籤:</label>
  <input id="tags">
</div>
 
 
</body>
</html>

包含重音

autocomplete 域使用自定義的source 選項來匹配帶有重音字符的結果項,即使文本域不包含重音字符也會匹配。 但是如果您在文本域中鍵入了重音字符,則不會顯示非重音的結果項。

嘗試鍵入"Jo",會看到"John" 和"Jorn",然後鍵入"Jo",只會看到"Jorn"。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 包含重音</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <script>
  $(function() {
    var names = [ "Jörn Zaefferer", "Scott González", "John Resig" ];
 
    var accentMap = {
      "á": "a",
      "ö": "o"
    };
    var normalize = function( term ) {
      var ret = "";
      for ( var i = 0; i < term.length; i++ ) {
        ret += accentMap[ term.charAt(i) ] || term.charAt(i);
      }
      return ret;
    };
 
    $( "#developer" ).autocomplete({
      source: function( request, response ) {
        var matcher = new RegExp( $.ui.autocomplete.escapeRegex( request.term ), "i" );
        response( $.grep( names, function( value ) {
          value = value.label || value.value || value;
          return matcher.test( value ) || matcher.test( normalize( value ) );
        }) );
      }
    });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <form>
  <label for="developer">開發人員:</label>
  <input id="developer">
  </form>
</div>
 
 
</body>
</html>

分類

分類的搜索結果。 嘗試鍵入"a" 或"n"。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 分類</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  .ui-autocomplete-category {
    font-weight: bold;
    padding: .2em .4em;
    margin: .8em 0 .2em;
    line-height: 1.5;
  }
  </style>
  <script>
  $.widget( "custom.catcomplete", $.ui.autocomplete, {
    _renderMenu: function( ul, items ) {
      var that = this,
        currentCategory = "";
      $.each( items, function( index, item ) {
        if ( item.category != currentCategory ) {
          ul.append( "<li class='ui-autocomplete-category'>" + item.category + "</li>" );
          currentCategory = item.category;
        }
        that._renderItemData( ul, item );
      });
    }
  });
  </script>
  <script>
  $(function() {
    var data = [
      { label: "anders", category: "" },
      { label: "andreas", category: "" },
      { label: "antal", category: "" },
      { label: "annhhx10", category: "Products" },
      { label: "annk K12", category: "Products" },
      { label: "annttop C13", category: "Products" },
      { label: "anders andersson", category: "People" },
      { label: "andreas andersson", category: "People" },
      { label: "andreas johnson", category: "People" }
    ];
 
    $( "#search" ).catcomplete({
      delay: 0,
      source: data
    });
  });
  </script>
</head>
<body>
 
<label for="search">搜索:</label>
<input id="search">
 
 
</body>
</html>

組合框(Combobox)

一個由Autocomplete 和Button 創建的自定義部件。 您可以鍵入一些字符,來獲得基於您的輸入過濾的結果,或者使用按鈕從完整列表中選擇。

該輸入是從一個已有的select 元素中讀取,傳遞給帶有自定義的source 選項的Autocomplete。

這是一個不被支持的不完美的部件。 這裡純粹是為了演示autocomplete 定制功能。 如需了解更多有關該部件工作原理的細節,請點擊這裡查看相關的jQuery文章。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 組合框(Combobox)</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  .custom-combobox {
    position: relative;
    display: inline-block;
  }
  .custom-combobox-toggle {
    position: absolute;
    top: 0;
    bottom: 0;
    margin-left: -1px;
    padding: 0;
    /* 支持: IE7 */
    *height: 1.7em;
    *top: 0.1em;
  }
  .custom-combobox-input {
    margin: 0;
    padding: 0.3em;
  }
  </style>
  <script>
  (function( $ ) {
    $.widget( "custom.combobox", {
      _create: function() {
        this.wrapper = $( "<span>" )
          .addClass( "custom-combobox" )
          .insertAfter( this.element );
 
        this.element.hide();
        this._createAutocomplete();
        this._createShowAllButton();
      },
 
      _createAutocomplete: function() {
        var selected = this.element.children( ":selected" ),
          value = selected.val() ? selected.text() : "";
 
        this.input = $( "<input>" )
          .appendTo( this.wrapper )
          .val( value )
          .attr( "title", "" )
          .addClass( "custom-combobox-input ui-widget ui-widget-content ui-state-default ui-corner-left" )
          .autocomplete({
            delay: 0,
            minLength: 0,
            source: $.proxy( this, "_source" )
          })
          .tooltip({
            tooltipClass: "ui-state-highlight"
          });
 
        this._on( this.input, {
          autocompleteselect: function( event, ui ) {
            ui.item.option.selected = true;
            this._trigger( "select", event, {
              item: ui.item.option
            });
          },
 
          autocompletechange: "_removeIfInvalid"
        });
      },
 
      _createShowAllButton: function() {
        var input = this.input,
          wasOpen = false;
 
        $( "<a>" )
          .attr( "tabIndex", -1 )
          .attr( "title", "Show All Items" )
          .tooltip()
          .appendTo( this.wrapper )
          .button({
            icons: {
              primary: "ui-icon-triangle-1-s"
            },
            text: false
          })
          .removeClass( "ui-corner-all" )
          .addClass( "custom-combobox-toggle ui-corner-right" )
          .mousedown(function() {
            wasOpen = input.autocomplete( "widget" ).is( ":visible" );
          })
          .click(function() {
            input.focus();
 
            // 如果已經可見則關閉if ( wasOpen ) {
              return;
            }
 
            // 傳遞空字符串作為搜索的值,顯示所有的結果input.autocomplete( "search", "" );
          });
      },
 
      _source: function( request, response ) {
        var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
        response( this.element.children( "option" ).map(function() {
          var text = $( this ).text();
          if ( this.value && ( !request.term || matcher.test(text) ) )
            return {
              label: text,
              value: text,
              option: this
            };
        }) );
      },
 
      _removeIfInvalid: function( event, ui ) {
 
        // 選擇一項,不執行其他動作if ( ui.item ) {
          return;
        }
 
        // 搜索一個匹配(不區分大小寫)
        var value = this.input.val(),
          valueLowerCase = value.toLowerCase(),
          valid = false;
        this.element.children( "option" ).each(function() {
          if ( $( this ).text().toLowerCase() === valueLowerCase ) {
            this.selected = valid = true;
            return false;
          }
        });
 
        // 找到一個匹配,不執行其他動作if ( valid ) {
          return;
        }
 
        // 移除無效的值this.input
          .val( "" )
          .attr( "title", value + " didn't match any item" )
          .tooltip( "open" );
        this.element.val( "" );
        this._delay(function() {
          this.input.tooltip( "close" ).attr( "title", "" );
        }, 2500 );
        this.input.data( "ui-autocomplete" ).term = "";
      },
 
      _destroy: function() {
        this.wrapper.remove();
        this.element.show();
      }
    });
  })( jQuery );
 
  $(function() {
    $( "#combobox" ).combobox();
    $( "#toggle" ).click(function() {
      $( "#combobox" ).toggle();
    });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label>您喜歡的編程語言:</label>
  <select id="combobox">
    <option value="">請選擇...</option>
    <option value="ActionScript">ActionScript</option>
    <option value="AppleScript">AppleScript</option>
    <option value="Asp">Asp</option>
    <option value="BASIC">BASIC</option>
    <option value="C">C</option>
    <option value="C++">C++</option>
    <option value="Clojure">Clojure</option>
    <option value="COBOL">COBOL</option>
    <option value="ColdFusion">ColdFusion</option>
    <option value="Erlang">Erlang</option>
    <option value="Fortran">Fortran</option>
    <option value="Groovy">Groovy</option>
    <option value="Haskell">Haskell</option>
    <option value="Java">Java</option>
    <option value="JavaScript">JavaScript</option>
    <option value="Lisp">Lisp</option>
    <option value="Perl">Perl</option>
    <option value="PHP">PHP</option>
    <option value="Python">Python</option>
    <option value="Ruby">Ruby</option>
    <option value="Scala">Scala</option>
    <option value="Scheme">Scheme</option>
  </select>
</div>
<button id="toggle">顯示基礎的選擇框</button>
 
 
</body>
</html>

自定義數據並顯示

您可以使用自定義數據格式,並通過簡單地重載默認的聚焦和選擇行為來顯示數據。

嘗試鍵入"j",或者按向下箭頭按鍵,即可得到一個項目列表。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 自定義數據並顯示</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  #project-label {
    display: block;
    font-weight: bold;
    margin-bottom: 1em;
  }
  #project-icon {
    float: left;
    height: 32px;
    width: 32px;
  }
  #project-description {
    margin: 0;
    padding: 0;
  }
  </style>
  <script>
  $(function() {
    var projects = [
      {
        value: "jquery",
        label: "jQuery",
        desc: "the write less, do more, JavaScript library",
        icon: "jquery_32x32.png"
      },
      {
        value: "jquery-ui",
        label: "jQuery UI",
        desc: "the official user interface library for jQuery",
        icon: "jqueryui_32x32.png"
      },
      {
        value: "sizzlejs",
        label: "Sizzle JS",
        desc: "a pure-JavaScript CSS selector engine",
        icon: "sizzlejs_32x32.png"
      }
    ];
 
    $( "#project" ).autocomplete({
      minLength: 0,
      source: projects,
      focus: function( event, ui ) {
        $( "#project" ).val( ui.item.label );
        return false;
      },
      select: function( event, ui ) {
        $( "#project" ).val( ui.item.label );
        $( "#project-id" ).val( ui.item.value );
        $( "#project-description" ).html( ui.item.desc );
        $( "#project-icon" ).attr( "src", "images/" + ui.item.icon );
 
        return false;
      }
    })
    .data( "ui-autocomplete" )._renderItem = function( ul, item ) {
      return $( "<li>" )
        .append( "<a>" + item.label + "<br>" + item.desc + "</a>" )
        .appendTo( ul );
    };
  });
  </script>
</head>
<body>
 
<div id="project-label">選擇一個項目(請鍵入"j"):</div>
<img id="project-icon" src="images/transparent_1x1.png" class="ui-state-default" alt="">
<input id="project">
<input type="hidden" id="project-id">
<p id="project-description"></p>
 
 
</body>
</html>

多個值

用法:鍵入一些字符,比如"j",可以看到相關的編程語言結果。 選擇一個值,然後繼續鍵入字符來添加其他的值。

本實例演示如何使用source 選項和一些事件來實現在一個單一的文本域輸入多個自動完成的值。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 多個值</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <script>
  $(function() {
    var availableTags = [
      "ActionScript",
      "AppleScript",
      "Asp",
      "BASIC",
      "C",
      "C++",
      "Clojure",
      "COBOL",
      "ColdFusion",
      "Erlang",
      "Fortran",
      "Groovy",
      "Haskell",
      "Java",
      "JavaScript",
      "Lisp",
      "Perl",
      "PHP",
      "Python",
      "Ruby",
      "Scala",
      "Scheme"
    ];
    function split( val ) {
      return val.split( /,\s*/ );
    }
    function extractLast( term ) {
      return split( term ).pop();
    }
 
    $( "#tags" )
      // 當選擇一個條目時不離開文本域.bind( "keydown", function( event ) {
        if ( event.keyCode === $.ui.keyCode.TAB &&
            $( this ).data( "ui-autocomplete" ).menu.active ) {
          event.preventDefault();
        }
      })
      .autocomplete({
        minLength: 0,
        source: function( request, response ) {
          // 回到autocomplete,但是提取最後的條目response( $.ui.autocomplete.filter(
            availableTags, extractLast( request.term ) ) );
        },
        focus: function() {
          // 防止在獲得焦點時插入值return false;
        },
        select: function( event, ui ) {
          var terms = split( this.value );
          // 移除當前輸入terms.pop();
          // 添加被選項terms.push( ui.item.value );
          // 添加佔位符,在結尾添加逗號+空格terms.push( "" );
          this.value = terms.join( ", " );
          return false;
        }
      });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label for="tags">編程語言:</label>
  <input id="tags" size="50">
</div>
 
 
</body>
</html>

多個值,遠程

用法:鍵入至少兩個字符來獲取鳥的名稱。 選擇一個值,然後繼續鍵入字符來添加其他的值。

本實例演示如何使用source 選項和一些事件來實現在一個單一的文本域輸入多個自動完成的值。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 多個值,遠程</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  .ui-autocomplete-loading {
    background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
  }
  </style>
  <script>
  $(function() {
    function split( val ) {
      return val.split( /,\s*/ );
    }
    function extractLast( term ) {
      return split( term ).pop();
    }
 
    $( "#birds" )
      // 當選擇一個條目時不離開文本域.bind( "keydown", function( event ) {
        if ( event.keyCode === $.ui.keyCode.TAB &&
            $( this ).data( "ui-autocomplete" ).menu.active ) {
          event.preventDefault();
        }
      })
      .autocomplete({
        source: function( request, response ) {
          $.getJSON( "search.php", {
            term: extractLast( request.term )
          }, response );
        },
        search: function() {
          // 自定義最小長度var term = extractLast( this.value );
          if ( term.length < 2 ) {
            return false;
          }
        },
        focus: function() {
          // 防止在獲得焦點時插入值return false;
        },
        select: function( event, ui ) {
          var terms = split( this.value );
          // 移除當前輸入terms.pop();
          // 添加被選項terms.push( ui.item.value );
          // 添加佔位符,在結尾添加逗號+空格terms.push( "" );
          this.value = terms.join( ", " );
          return false;
        }
      });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label for="birds">鳥:</label>
  <input id="birds" size="50">
</div>
 
 
</body>
</html>

遠程JSONP 數據源

當您在文本域中鍵入字符時,Autocomplete 部件給出建議結果。 在本實例中,當您在文本域中至少鍵入兩個字符時,將顯示相關城市的名稱。

在本實例中,數據源是geonames.org webservice 。 雖然選擇一個元素後文本域中是該城市名稱,但是會顯示更多的信息以便找到正確的條目。 數據也可以回調,顯示在下面的結果框中。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 遠程JSONP 數據源</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  .ui-autocomplete-loading {
    background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
  }
  #city { width: 25em; }
  </style>
  <script>
  $(function() {
    function log( message ) {
      $( "<div>" ).text( message ).prependTo( "#log" );
      $( "#log" ).scrollTop( 0 );
    }
 
    $( "#city" ).autocomplete({
      source: function( request, response ) {
        $.ajax({
          url: "http://ws.geonames.org/searchJSON",
          dataType: "jsonp",
          data: {
            featureClass: "P",
            style: "full",
            maxRows: 12,
            name_startsWith: request.term
          },
          success: function( data ) {
            response( $.map( data.geonames, function( item ) {
              return {
                label: item.name + (item.adminName1 ? ", " + item.adminName1 : "") + ", " + item.countryName,
                value: item.name
              }
            }));
          }
        });
      },
      minLength: 2,
      select: function( event, ui ) {
        log( ui.item ?
          "Selected: " + ui.item.label :
          "Nothing selected, input was " + this.value);
      },
      open: function() {
        $( this ).removeClass( "ui-corner-all" ).addClass( "ui-corner-top" );
      },
      close: function() {
        $( this ).removeClass( "ui-corner-top" ).addClass( "ui-corner-all" );
      }
    });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label for="city">您的城市:</label>
  <input id="city">
  Powered by <a href="http://geonames.org" target="_blank">geonames.org</a>
</div>
 
<div class="ui-widget" style="margin-top:2em; font-family:Arial">
  結果:
  <div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
</div>
 
 
</body>
</html>

遠程數據源

當您在文本域中鍵入字符時,Autocomplete 部件給出建議結果。 在本實例中,當您在文本域中至少鍵入兩個字符時,將顯示相關鳥的名稱。

在本實例中,數據源是可返回JSON 數據的服務器端腳本,通過一個簡單的source 選項來指定。 另外,minLength 選項設置為2,避免查詢返回太多的結果,select 事件用於顯示一些反饋。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 遠程數據源</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  .ui-autocomplete-loading {
    background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
  }
  </style>
  <script>
  $(function() {
    function log( message ) {
      $( "<div>" ).text( message ).prependTo( "#log" );
      $( "#log" ).scrollTop( 0 );
    }
 
    $( "#birds" ).autocomplete({
      source: "search.php",
      minLength: 2,
      select: function( event, ui ) {
        log( ui.item ?
          "Selected: " + ui.item.value + " aka " + ui.item.id :
          "Nothing selected, input was " + this.value );
      }
    });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label for="birds">鳥:</label>
  <input id="birds">
</div>
 
<div class="ui-widget" style="margin-top:2em; font-family:Arial">
  結果:
  <div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
</div>
 
 
</body>
</html>

遠程緩存

當您在文本域中鍵入字符時,Autocomplete 部件給出建議結果。 在本實例中,當您在文本域中至少鍵入兩個字符時,將顯示相關鳥的名稱。

為了提高性能,這裡添加了一些本地緩存,其他與遠程數據源實例相似。 在這裡,緩存只保存了一個查詢,並可以擴展到緩存多個值,每個條目一個值。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 遠程緩存</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  .ui-autocomplete-loading {
    background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat;
  }
  </style>
  <script>
  $(function() {
    var cache = {};
    $( "#birds" ).autocomplete({
      minLength: 2,
      source: function( request, response ) {
        var term = request.term;
        if ( term in cache ) {
          response( cache[ term ] );
          return;
        }
 
        $.getJSON( "search.php", request, function( data, status, xhr ) {
          cache[ term ] = data;
          response( data );
        });
      }
    });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label for="birds">鳥:</label>
  <input id="birds">
</div>
 
 
</body>
</html>

可滾動的結果

當顯示一個長列表的選項時,您可以簡單地為autocomplete 菜單設置max-height 來防止菜單顯示太長。 嘗試鍵入"a" 或"s" 來獲得一個可滾動的長列表的結果。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - 可滾動的結果</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  .ui-autocomplete {
    max-height: 100px;
    overflow-y: auto;
    /* 防止水平滾動條*/
    overflow-x: hidden;
  }
  /* IE 6 不支持max-height
   * 我們使用height 代替,但是這會強制菜單總是顯示為那個高度*/
  * html .ui-autocomplete {
    height: 100px;
  }
  </style>
  <script>
  $(function() {
    var availableTags = [
      "ActionScript",
      "AppleScript",
      "Asp",
      "BASIC",
      "C",
      "C++",
      "Clojure",
      "COBOL",
      "ColdFusion",
      "Erlang",
      "Fortran",
      "Groovy",
      "Haskell",
      "Java",
      "JavaScript",
      "Lisp",
      "Perl",
      "PHP",
      "Python",
      "Ruby",
      "Scala",
      "Scheme"
    ];
    $( "#tags" ).autocomplete({
      source: availableTags
    });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label for="tags">標籤:</label>
  <input id="tags">
</div>
 
 
</body>
</html>

XML 數據

本實例演示如何獲取一些XML 數據,並使用jQuery 的方法解析它,然後把它提供給autocomplete 作為數據源。

本實例也可作為解析遠程XML 數據源的參考- 解析在每次source 回調請求時發生。

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 自動完成(Autocomplete) - XML 數據</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  .ui-autocomplete-loading { background: white url('images/ui-anim_basic_16x16.gif') right center no-repeat; }
  </style>
  <script>
  $(function() {
    function log( message ) {
      $( "<div/>" ).text( message ).prependTo( "#log" );
      $( "#log" ).attr( "scrollTop", 0 );
    }
 
    $.ajax({
      url: "london.xml",
      dataType: "xml",
      success: function( xmlResponse ) {
        var data = $( "geoname", xmlResponse ).map(function() {
          return {
            value: $( "name", this ).text() + ", " +
              ( $.trim( $( "countryName", this ).text() ) || "(unknown country)" ),
            id: $( "geonameId", this ).text()
          };
        }).get();
        $( "#birds" ).autocomplete({
          source: data,
          minLength: 0,
          select: function( event, ui ) {
            log( ui.item ?
              "Selected: " + ui.item.value + ", geonameId: " + ui.item.id :
              "Nothing selected, input was " + this.value );
          }
        });
      }
    });
  });
  </script>
</head>
<body>
 
<div class="ui-widget">
  <label for="birds">London 匹配:</label>
  <input id="birds">
</div>
 
<div class="ui-widget" style="margin-top:2em; font-family:Arial">
  結果:
  <div id="log" style="height: 200px; width: 300px; overflow: auto;" class="ui-widget-content"></div>
</div>
 
 
</body>
</html>