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                # jQuery UI 實例 - 選擇(Selectable) 使用鼠標選擇單個元素或一組元素。 如需了解更多有關 selectable 交互的細節,請查看 API 文檔 [可選擇小部件(Selectable Widget)](api-selectable.html)。 ## 默認功能 在某個 DOM 元素上或者一組元素上啟用 selectable 功能。通過鼠標拖拽選擇條目。按住 Ctrl 鍵,選擇多個不相鄰的條目。 ``` <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 選擇(Selectable) - 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"> <style> #feedback { font-size: 1.4em; } #selectable .ui-selecting { background: #FECA40; } #selectable .ui-selected { background: #F39814; color: white; } #selectable { list-style-type: none; margin: 0; padding: 0; width: 60%; } #selectable li { margin: 3px; padding: 0.4em; font-size: 1.4em; height: 18px; } </style> <script> $(function() { $( "#selectable" ).selectable(); }); </script> </head> <body> <ol id="selectable"> <li class="ui-widget-content">Item 1</li> <li class="ui-widget-content">Item 2</li> <li class="ui-widget-content">Item 3</li> <li class="ui-widget-content">Item 4</li> <li class="ui-widget-content">Item 5</li> <li class="ui-widget-content">Item 6</li> <li class="ui-widget-content">Item 7</li> </ol> </body> </html> ``` ## 顯示為網格 讓 selectable 條目顯示為網格,使用 CSS 使得它們帶有相同的尺寸且浮動顯示。 ``` <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 選擇(Selectable) - 顯示為網格</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> #feedback { font-size: 1.4em; } #selectable .ui-selecting { background: #FECA40; } #selectable .ui-selected { background: #F39814; color: white; } #selectable { list-style-type: none; margin: 0; padding: 0; width: 450px; } #selectable li { margin: 3px; padding: 1px; float: left; width: 100px; height: 80px; font-size: 4em; text-align: center; } </style> <script> $(function() { $( "#selectable" ).selectable(); }); </script> </head> <body> <ol id="selectable"> <li class="ui-state-default">1</li> <li class="ui-state-default">2</li> <li class="ui-state-default">3</li> <li class="ui-state-default">4</li> <li class="ui-state-default">5</li> <li class="ui-state-default">6</li> <li class="ui-state-default">7</li> <li class="ui-state-default">8</li> <li class="ui-state-default">9</li> <li class="ui-state-default">10</li> <li class="ui-state-default">11</li> <li class="ui-state-default">12</li> </ol> </body> </html> ``` ## 序列化 寫一個函數,在 `stop` 事件發生時觸發,來收集被選中條目的索引值。呈現這些值作為反饋,或者以數據字符串形式進行傳遞。 ``` <!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 選擇(Selectable) - 序列化</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> #feedback { font-size: 1.4em; } #selectable .ui-selecting { background: #FECA40; } #selectable .ui-selected { background: #F39814; color: white; } #selectable { list-style-type: none; margin: 0; padding: 0; width: 60%; } #selectable li { margin: 3px; padding: 0.4em; font-size: 1.4em; height: 18px; } </style> <script> $(function() { $( "#selectable" ).selectable({ stop: function() { var result = $( "#select-result" ).empty(); $( ".ui-selected", this ).each(function() { var index = $( "#selectable li" ).index( this ); result.append( " #" + ( index + 1 ) ); }); } }); }); </script> </head> <body> <p id="feedback"> <span>您已經選擇了:</span> <span id="select-result">無</span>。 </p> <ol id="selectable"> <li class="ui-widget-content">Item 1</li> <li class="ui-widget-content">Item 2</li> <li class="ui-widget-content">Item 3</li> <li class="ui-widget-content">Item 4</li> <li class="ui-widget-content">Item 5</li> <li class="ui-widget-content">Item 6</li> </ol> </body> </html> ```
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