JQuery学习笔记：表格排序
最近在看Jquery基础教程，挺不错的一本书，从今天起要开始写jquery的学习笔记了。书上前六章是基础教程，其实看api也差不多，接下来是一些实际的例子，我就跟着他的例子走，动手写写，加深印象，提高一下学习效果。
表格排序——
功能简介：这个例子是对一个表格添加排序功能，把标题变成按钮，点击每个标题可以按照相关规则顺序或者逆序排序数据。
效果图：
http://www.agoit.com/upload/attachment/71579/0f737c8b-0e1d-36b6-a00d-4b03bfe4f845.jpg
表格html代码如下：
<table border="0" class="sortable paginated"> <thead> <tr> <th></th> <th class="sort-alpha">Title</th> <th class="sort-alpha">Author(s)</th> <th class="sort-date">Publish&nbsp;Date</th> <th class="sort-numeric">Price</th> </tr> </thead> <tbody> <tr> <td><img src="../covers/small/1847192386.png" width="49" height="61" alt="Building Websites with Joomla! 1.5 Beta 1" /></td> <td>Building Websites with Joomla! 1.5 Beta 1</td> <td>Hagen <span class="sort-key">Graf</span></td> <td>Feb 2007</td> <td>$40.49</td> </tr></tbody></table>
JavaScript代码：
$.fn.alternateRowColors = function() {//把alternateRowColors做成插件$('tbody tr:odd', this).removeClass('even').addClass('odd');$('tbody tr:even', this).removeClass('odd').addClass('even');return this;};$(document).ready(function() {$('table.sortable').each(function() { var $table = $(this); $table.alternateRowColors(); $table.find('th').each(function(column) { var findSortKey; if ($(this).is('.sort-alpha')) { findSortKey = function($cell) { return $cell.find('.sort-key').text().toUpperCase() + ' ' + $cell.text().toUpperCase(); }; } else if ($(this).is('.sort-numeric')) { findSortKey = function($cell) { var key = parseFloat($cell.text().replace(/^[^\d.]*/, '')); return isNaN(key) ? 0 : key; }; } else if ($(this).is('.sort-date')) { findSortKey = function($cell) { return Date.parse('1 ' + $cell.text()); }; } if (findSortKey) { $(this).addClass('clickable').hover(function() { $(this).addClass('hover'); }, function() { $(this).removeClass('hover'); }).click(function() { var newDirection = 1; if ($(this).is('.sorted-asc')) { newDirection = -1; } var rows = $table.find('tbody > tr').get(); $.each(rows, function(index, row) { row.sortKey = findSortKey($(row).children('td').eq(column)); }); rows.sort(function(a, b) { if (a.sortKey < b.sortKey) return -newDirection; if (a.sortKey > b.sortKey) return newDirection; return 0; }); $.each(rows, function(index, row) { $table.children('tbody').append(row); row.sortKey = null; }); $table.find('th').removeClass('sorted-asc').removeClass('sorted-desc'); var $sortHead = $table.find('th').filter(':nth-child(' + (column + 1) + ')'); if (newDirection == 1) { $sortHead.addClass('sorted-asc'); } else { $sortHead.addClass('sorted-desc'); } $table.find('td').removeClass('sorted') .filter(':nth-child(' + (column + 1) + ')').addClass('sorted'); $table.alternateRowColors().trigger('repaginate'); }); } });});});$(document).ready(function() {$('table.paginated').each(function() { var currentPage = 0; var numPerPage = 10; var $table = $(this); $table.bind('repaginate', function() { $table.find('tbody tr').show() .lt(currentPage * numPerPage) .hide() .end() .gt((currentPage + 1) * numPerPage - 1) .hide() .end(); }); var numRows = $table.find('tbody tr').length; var numPages = Math.ceil(numRows / numPerPage); var $pager = $('<div class="pager"></div>'); for (var page = 0; page < numPages; page++) { $('<span class="page-number">' + (page + 1) + '</span>') .bind('click', {'newPage': page}, function(event) { currentPage = event.data['newPage']; $table.trigger('repaginate'); $(this).addClass('active').siblings().removeClass('active'); }) .appendTo($pager).addClass('clickable'); } $pager.find('span.page-number:first').addClass('active'); $pager.insertBefore($table); $table.trigger('repaginate');});});/*************************************** =ADVANCED ROW STRIPING-------------------------------------- *//*3 alternating single rows */// $(document).ready(function() {// var classNames = {// 0: 'first',// 1: 'second',// 2: 'third'// };// $('table.striped tbody tr').not('').each(function(index) {//// $(this).addClass(classNames);// });// });/*alternating groups of three rows - resets at subheads */// $(document).ready(function() {// var rowClass = 'even';// var rowIndex = 0;// $('table.striped tbody tr').each(function(index) {// if ($('th', this).length) {// rowClass = 'subhead';// rowIndex = -1;// } else// if (rowIndex % 3 == 0) {// rowClass = (rowClass == 'even' ? 'odd' : 'even');// };// $(this).addClass(rowClass);// rowIndex++;// });// });// $(document).ready(function() {// var rowIndex = 0;// $('table.striped tbody tr').each(function(index) {// if ($('th',this).length) {// $(this).addClass('subhead');// rowIndex = -1;// } else {// if (rowIndex % 6 < 3) {// $(this).addClass('even');// }// else {// $(this).addClass('odd');// }// };// rowIndex++;// });// });/*************************************** =HIGHLIGHT ROWS BY AUTHOR-------------------------------------- */$(document).ready(function() {var highlighted = "";var column = 3;var positionTooltip = function(event) { var tPosX = event.pageX; var tPosY = event.pageY+20; $('div.tooltip').css({top: tPosY, left: tPosX});};var showTooltip = function(event) { $('div.tooltip').remove(); var $thisAuthor = $(this).text(); if ($(this).parent().is('.highlight')) { highlighted = 'un-'; } else { highlighted = ''; }; $('<div class="tooltip">Click to ' + highlighted + 'highlight all articles written by ' + $thisAuthor + '</div>').appendTo('body'); positionTooltipevent.char;};var hideTooltip = function() { $('div.tooltip').remove();};$('table.striped td:nth-child(' + column + ')' ).addClass('clickable').click(function(event) { var thisClicked = $(this).text(); $('table.striped td:nth-child(' + column + ')' ).each(function(index) { if (thisClicked == $(this).text()) { $(this).parent().toggleClass('highlight'); } else { $(this).parent().removeClass('highlight') }; }); showTooltip.call(this, event);//call the function as if it were defined right here. calls it in the scope we're giving it. in this case, "this" also passing in the event because we need the info for the positioning}).hover(showTooltip, hideTooltip)//referencing the function defined elsewhere. no parens.mousemove(positionTooltip);});$(document).ready(function() {$('table.striped').each(function() { $(this).bind('stripe', function() { var rowIndex = 0; $('tbody tr:not(.filtered)', this).each(function(index) { if ($('th',this).length) { $(this).addClass('subhead'); rowIndex = -1; } else { if (rowIndex % 6 < 3) { $(this).removeClass('odd').addClass('even'); } else { $(this).removeClass('even').addClass('odd'); } }; rowIndex++; }); }); $(this).trigger('stripe');});});/*************************************** =FILTERING-------------------------------------- */$(document).ready(function() {$('table.filterable').each(function() { var $table = $(this); $table.find('th').each(function (column) { if ($(this).is('.filter-column')) { var $filters = $('<div class="filters"><h3>Filter by ' + $(this).text() + ':</h3></div>'); var keywords = {}; $table.find('tbody tr td').filter(':nth-child(' + (column + 1) + ')').each(function() { keywords[$(this).text()] = $(this).text(); }); $('<div class="filter">all</div>').click(function() { $table.find('tbody tr').removeClass('filtered').not('.collapsed').show(); $(this).addClass('active').siblings().removeClass('active'); $table.trigger('stripe'); }).addClass('clickable active').appendTo($filters); $.each(keywords, function (index, keyword) { $('<div class="filter"></div>').text(keyword).bind('click', {'keyword': keyword}, function(event) { $table.find('tbody tr').each(function() { if ($('td', this).filter(':nth-child(' + (column + 1) + ')').text() == event.data['keyword']) { $(this).removeClass('filtered').not('.collapsed').show(); } else if ($('th',this).length == 0) { $(this).addClass('filtered').hide(); } }); $(this).addClass('active').siblings().removeClass('active'); $table.trigger('stripe'); }).addClass('clickable').appendTo($filters); }); $filters.insertBefore($table); } });});});/*************************************** =COLLAPSE AND EXPAND TABLE SECTIONS-------------------------------------- */$(document).ready(function() {var $subHead = $('tbody th:first-child');var toggleMinus = '../icons/bullet_toggle_minus.png';var togglePlus = '../icons/bullet_toggle_plus.png';$subHead.prepend('<img src="' + toggleMinus + '" alt="collapse this section" />');$('img', $subHead).addClass('clickable').click(function() { var toggleSrc = $(this).attr('src'); if ( toggleSrc == toggleMinus ) { $(this).attr('src', togglePlus) .parents('tr').siblings().addClass('collapsed').fadeOut('fast'); } else{ $(this).attr('src', toggleMinus) .parents('tr').siblings().removeClass('collapsed').not('.filtered').fadeIn('fast'); };});});
页:
[1]