ASP.NET TreeView树型菜单操作实例

/* * This file has been commented to support Visual Studio Intellisense. * You should not use this file at runtime inside the browser--it is only * intended to be used only for design-time IntelliSense. Please use the * standard jQuery library for all production use. * * Comment version: 1.4.1a */ /*! * jQuery JavaScript Library v1.4.1 * http://jquery.com/ * * Distributed in whole under the terms of the MIT * * Copyright 2010, John Resig * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * Includes Sizzle.js * http://sizzlejs.com/ * Copyright 2010, The Dojo Foundation * Released under the MIT, BSD, and GPL Licenses. * * Date: Mon Jan 25 19:43:33 2010 -0500 */ (function( window, undefined ) { // Define a local copy of jQuery var jQuery = function( selector, context ) { /// <summary> /// 1: $(expression, context) - 此函数接受一个包含 CSS 选择器的字符串，随后将使用该选择器匹配一组元素。 /// 2: $(html) - 基于提供的原始 HTML 字符串动态创建 DOM 元素。 /// 3: $(elements) - 围绕单个或多个 DOM 元素包装 jQuery 功能。 /// 4: $(callback) - $(document).ready() 的简写形式。 /// 5: $() - 从 jQuery 1.4 开始，如果未向 jQuery()方法传递任何参数，则将返回空的 jQuery 集。 /// </summary> /// <param name="selector" type="String"> /// 1: expression - 要用于搜索的表达式。 /// 2: html - 要动态创建的 HTML 字符串。 /// 3: elements - 将由 jQuery 对象封装的 DOM 元素。 /// 4: callback - 当 DOM 就绪时要执行的函数。 /// </param> /// <param name="context" type="jQuery"> /// 1: context - 要用作上下文的 DOM 元素、文档或 jQuery。 /// </param> /// <returns type="jQuery" /> // The jQuery object is actually just the init constructor 'enhanced' return new jQuery.fn.init( selector, context ); }, // Map over jQuery in case of overwrite _jQuery = window.jQuery, // Map over the $ in case of overwrite _$ = window.$, // Use the correct document accordingly with window argument (sandbox) document = window.document, // A central reference to the root jQuery(document) rootjQuery, // A simple way to check for HTML strings or ID strings // (both of which we optimize for) quickExpr = /^[^<]*(<[\w\W]+>)[^>]*$|^#([\w-]+)$/, // Is it a simple selector isSimple = /^.[^:#\[\.,]*$/, // Check if a string has a non-whitespace character in it rnotwhite = /\S/, // Used for trimming whitespace rtrim = /^(\s|\u00A0)+|(\s|\u00A0)+$/g, // Match a standalone tag rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/, // Keep a UserAgent string for use with jQuery.browser userAgent = navigator.userAgent, // For matching the engine and version of the browser browserMatch, // Has the ready events already been bound? readyBound = false, // The functions to execute on DOM ready readyList = [], // The ready event handler DOMContentLoaded, // Save a reference to some core methods toString = Object.prototype.toString, hasOwnProperty = Object.prototype.hasOwnProperty, push = Array.prototype.push, slice = Array.prototype.slice, indexOf = Array.prototype.indexOf; jQuery.fn = jQuery.prototype = { init: function( selector, context ) { var match, elem, ret, doc; // Handle $(""), $(null), or $(undefined) if ( !selector ) { return this; } // Handle $(DOMElement) if ( selector.nodeType ) { this.context = this[0] = selector; this.length = 1; return this; } // Handle HTML strings if ( typeof selector === "string" ) { // Are we dealing with HTML string or an ID? match = quickExpr.exec( selector ); // Verify a match, and that no context was specified for #id if ( match && (match[1] || !context) ) { // HANDLE: $(html) -> $(array) if ( match[1] ) { doc = (context ? context.ownerDocument || context : document); // If a single string is passed in and it's a single tag // just do a createElement and skip the rest ret = rsingleTag.exec( selector ); if ( ret ) { if ( jQuery.isPlainObject( context ) ) { selector = [ document.createElement( ret[1] ) ]; jQuery.fn.attr.call( selector, context, true ); } else { selector = [ doc.createElement( ret[1] ) ]; } } else { ret = buildFragment( [ match[1] ], [ doc ] ); selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes; } // HANDLE: $("#id") } else { elem = document.getElementById( match[2] ); if ( elem ) { // Handle the case where IE and Opera return items // by name instead of ID if ( elem.id !== match[2] ) { return rootjQuery.find( selector ); } // Otherwise, we inject the element directly into the jQuery object this.length = 1; this[0] = elem; } this.context = document; this.selector = selector; return this; } // HANDLE: $("TAG") } else if ( !context && /^\w+$/.test( selector ) ) { this.selector = selector; this.context = document; selector = document.getElementsByTagName( selector ); // HANDLE: $(expr, $(...)) } else if ( !context || context.jquery ) { return (context || rootjQuery).find( selector ); // HANDLE: $(expr, context) // (which is just equivalent to: $(context).find(expr) } else { return jQuery( context ).find( selector ); } // HANDLE: $(function) // Shortcut for document ready } else if ( jQuery.isFunction( selector ) ) { return rootjQuery.ready( selector ); } if (selector.selector !== undefined) { this.selector = selector.selector; this.context = selector.context; } return jQuery.isArray( selector ) ? this.setArray( selector ) : jQuery.makeArray( selector, this ); }, // Start with an empty selector selector: "", // The current version of jQuery being used jquery: "1.4.1", // The default length of a jQuery object is 0 length: 0, // The number of elements contained in the matched element set size: function() { /// <summary> /// 当前匹配的元素的数目。 /// 核心部分 /// </summary> /// <returns type="Number" /> return this.length; }, toArray: function() { /// <summary> /// 以数组的形式检索 jQuery 集中包含的所有 DOM 元素。 /// </summary> /// <returns type="Array" /> return slice.call( this, 0 ); }, // Get the Nth element in the matched element set OR // Get the whole matched element set as a clean array get: function( num ) { /// <summary> /// 访问单个匹配的元素。num 用于访问 /// 匹配的第 N 个元素。 /// 核心部分