• JQuery easyui里面的自动完成autocomplete插件


    默认功能

    当您在输入域中输入时,自动完成(Autocomplete)部件提供相应的建议。在本实例中,提供了编程语言的建议选项,您可以输入 "ja" 尝试一下,可以得到 Java 或 JavaScript。

    数据源是一个简单的 JavaScript 数组,使用 source 选项提供给部件。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 默认功能</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">标签:</label>
      <input id="tags">
    </div>
      
      
    </body>
    </html>


    autocomplete 域使用自定义的 source 选项来匹配带有重音字符的结果项,即使文本域不包含重音字符也会匹配。但是如果您在文本域中键入了重音字符,则不会显示非重音的结果项。
    包含重音

    尝试键入 "Jo",会看到 "John" 和 "Jörn",然后 键入 "Jö",只会看到 "Jörn"。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(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">开发人员:</label>
      <input id="developer">
      </form>
    </div>
    </body>
    </html>

    分类

    分类的搜索结果。尝试键入 "a" 或 "n"。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 分类</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>

     

    组合框(Combobox)

    一个由 Autocomplete 和 Button 创建的自定义部件。您可以键入一些字符,来获得基于您的输入过滤的结果,或者使用按钮从完整列表中选择。

    该输入是从一个已有的 select 元素中读取,传递给带有自定义的 source 选项的 Autocomplete。

    这是一个不被支持的不完美的部件。这里纯粹是为了演示 autocomplete 定制功能。如需了解更多有关该部件工作原理的细节,请点击这里查看相关的 jQuery 文章。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 组合框(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();
      
                // 如果已经可见则关闭
                if ( wasOpen ) {
                  return;
                }
      
                // 传递空字符串作为搜索的值,显示所有的结果
                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 ) {
      
            // 选择一项,不执行其他动作
            if ( ui.item ) {
              return;
            }
      
            // 搜索一个匹配(不区分大小写)
            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;
              }
            });
      
            // 找到一个匹配,不执行其他动作
            if ( valid ) {
              return;
            }
      
            // 移除无效的值
            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>您喜欢的编程语言:</label>
      <select id="combobox">
        <option value="">请选择...</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">显示基础的选择框</button>
    </body>
    </html>

     

    自定义数据并显示

    您可以使用自定义数据格式,并通过简单地重载默认的聚焦和选择行为来显示数据。

    尝试键入 "j",或者按向下箭头按键,即可得到一个项目列表。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 自定义数据并显示</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;
         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">选择一个项目(请键入 "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>

    多个值

    用法:键入一些字符,比如 "j",可以看到相关的编程语言结果。选择一个值,然后继续键入字符来添加其他的值。

    本实例演示如何使用 source 选项和一些事件来实现在一个单一的文本域输入多个自动完成的值。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 多个值</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" )
          // 当选择一个条目时不离开文本域
          .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,但是提取最后的条目
              response( $.ui.autocomplete.filter(
                availableTags, extractLast( request.term ) ) );
            },
            focus: function() {
              // 防止在获得焦点时插入值
              return false;
            },
            select: function( event, ui ) {
              var terms = split( this.value );
              // 移除当前输入
              terms.pop();
              // 添加被选项
              terms.push( ui.item.value );
              // 添加占位符,在结尾添加逗号+空格
              terms.push( "" );
              this.value = terms.join( ", " );
              return false;
            }
          });
      });
      </script>
    </head>
    <body>
      
    <div class="ui-widget">
      <label for="tags">编程语言:</label>
      <input id="tags" size="50">
    </div>
      
      
    </body>
    </html>

    多个值,远程

    用法:键入至少两个字符来获取鸟的名称。选择一个值,然后继续键入字符来添加其他的值。

    本实例演示如何使用 source 选项和一些事件来实现在一个单一的文本域输入多个自动完成的值。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 多个值,远程</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" )
          // 当选择一个条目时不离开文本域
          .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() {
              // 自定义最小长度
              var term = extractLast( this.value );
              if ( term.length < 2 ) {
                return false;
              }
            },
            focus: function() {
              // 防止在获得焦点时插入值
              return false;
            },
            select: function( event, ui ) {
              var terms split( this.value );
              // 移除当前输入
              terms.pop();
              // 添加被选项
              terms.push( ui.item.value );
              // 添加占位符,在结尾添加逗号+空格
              terms.push( "" );
              this.value terms.join( ", " );
              return false;
            }
          });
      });
      </script>
    </head>
    <body>
      
    <div class="ui-widget">
      <label for="birds">鸟:</label>
      <input id="birds" size="50">
    </div>  
    </body>
    </html>
     

    远程 JSONP 数据源

    当您在文本域中键入字符时,Autocomplete 部件给出建议结果。在本实例中,当您在文本域中至少键入两个字符时,将显示相关城市的名称。

    在本实例中,数据源是 geonames.org webservice。虽然选择一个元素后文本域中是该城市名称,但是会显示更多的信息以便找到正确的条目。数据也可以回调,显示在下面的结果框中。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 远程 JSONP 数据源</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 { 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">
      结果:
      <div id="log" style="height: 200px; 300px; overflow: auto;" class="ui-widget-content"></div>
    </div>  
    </body>
    </html>
     

    远程数据源

    当您在文本域中键入字符时,Autocomplete 部件给出建议结果。在本实例中,当您在文本域中至少键入两个字符时,将显示相关鸟的名称。

    在本实例中,数据源是可返回 JSON 数据的服务器端脚本,通过一个简单的 source 选项来指定。另外,minLength 选项设置为 2,避免查询返回太多的结果,select 事件用于显示一些反馈。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 远程数据源</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">鸟:</label>
      <input id="birds">
    </div>
      
    <div class="ui-widget" style="margin-top:2em; font-family:Arial">
      结果:
      <div id="log" style="height: 200px; 300px; overflow: auto;" class="ui-widget-content"></div>
    </div>  
    </body>
    </html>
     

    远程缓存

    当您在文本域中键入字符时,Autocomplete 部件给出建议结果。在本实例中,当您在文本域中至少键入两个字符时,将显示相关鸟的名称。

    为了提高性能,这里添加了一些本地缓存,其他与远程数据源实例相似。在这里,缓存只保存了一个查询,并可以扩展到缓存多个值,每个条目一个值。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 远程缓存</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">鸟:</label>
      <input id="birds">
    </div>
    </body>
    </html>
     

    可滚动的结果

    当显示一个长列表的选项时,您可以简单地为 autocomplete 菜单设置 max-height 来防止菜单显示太长。尝试键入 "a" 或 "s" 来获得一个可滚动的长列表的结果。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - 可滚动的结果</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;
        /* 防止水平滚动条 */
        overflow-x: hidden;
      }
      /* IE 6 不支持 max-height
       * 我们使用 height 代替,但是这会强制菜单总是显示为那个高度
       */
      * 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">标签:</label>
      <input id="tags">
    </div>  
    </body>
    </html>
     

    XML 数据

    本实例演示如何获取一些 XML 数据,并使用 jQuery 的方法解析它,然后把它提供给 autocomplete 作为数据源。

    本实例也可作为解析远程 XML 数据源的参考 - 解析在每次 source 回调请求时发生。

    <!doctype html>

    <html lang="en">
    <head>
      <meta charset="utf-8">
      <title>jQuery UI 自动完成(Autocomplete) - XML 数据</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">
      结果:
      <div id="log" style="height: 200px; 300px; overflow: auto;" class="ui-widget-content"></div>
    </div>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/yj716716yj/p/5640187.html
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