Ajax三级无刷新级联实例使用CallBackObject.js 简易Ajax框架

/* 客户端控件，须有Id与Name 传入objValues：须为转入后的字符串 */ function CallBackObject() { this.XmlHttp = this.GetHttpObject(); } CallBackObject.prototype.GetHttpObject = function() { var xmlhttp; /*@cc_on @if (@_jscript_version >= 5) try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); } catch (E) { xmlhttp = false; } } @else xmlhttp = false; @end @*/ if (!xmlhttp && typeof XMLHttpRequest != 'undefined') { try { xmlhttp = new XMLHttpRequest(); } catch (e) { xmlhttp = false; } } return xmlhttp; } //提交到本页，objValues为空，默认提交本页所有控件数据，objValues：转义后的字符串 CallBackObject.prototype.DoCallBack = function(objValues) { var theData = ''; var theform = document.forms[0]; var thePage = thePage = window.location.pathname + window.location.search; var eName = ''; var eventTarget = ""; var eventArgument = ""; theData = '__EVENTTARGET=' + escape(eventTarget.split("$").join(":")) + '&'; theData += '__EVENTARGUMENT=' + eventArgument + '&'; theData += '__VIEWSTATE=' + escape(theform.__VIEWSTATE.value).replace(new RegExp('\\+', 'g'), '%2b') + '&'; theData += 'IsCallBack=false&'; if (objValues == "") { for(i=0; i<theform.elements.length; i++ ) { eName = theform.elements[i].name; if( eName && eName != '') { if( eName == '__EVENTTARGET' || eName == '__EVENTARGUMENT' || eName == '__VIEWSTATE' ) { // Do Nothing } else { theData = theData + escape(eName.split("$").join(":")) + '=' + escape(theform.elements[i].value); if( i != theform.elements.length - 1 ) theData = theData + '&'; } } } } else { theData = objValues; } if( this.XmlHttp ) { if( this.XmlHttp.readyState == 4 || this.XmlHttp.readyState == 0 ) { var oThis = this; this.XmlHttp.open('POST', thePage, true); this.XmlHttp.onreadystatechange = function(){ oThis.ReadyStateChange(); }; this.XmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); this.XmlHttp.send(theData); } } } //将数据提交到指定页面(objPage),objValues为空，则提交本页面所有数据，objValues:转义后的字符串 CallBackObject.prototype.DoCallBackLogin = function (objValues,objPage) { var theData = ''; var theform = document.forms[0]; var thePage = ""; if (objPage == "") thePage = window.location.pathname + window.location.search; else thePage = objPage; var eName = ''; var eventTarget = ""; var eventArgument = ""; /* theData = '__EVENTTARGET=' + escape(eventTarget.split("$").join(":")) + '&'; theData += '__EVENTARGUMENT=' + eventArgument + '&'; theData += '__VIEWSTATE=' + escape(theform.__VIEWSTATE.value).replace(new RegExp('\\+', 'g'), '%2b') + '&'; theData += 'IsCallBack=false&'; */ if (objValues == "") { for(i=0; i<theform.elements.length; i++ ) { eName = theform.elements[i].name; if( eName && eName != '') { if( eName == '__EVENTTARGET' || eName == '__EVENTARGUMENT' || eName == '__VIEWSTATE' ) { // Do Nothing } else { theData = theData + escape(eName.split("$").join(":")) + '=' + escape(theform.elements[i].value); if( i != theform.elements.length - 1 ) theData = theData + '&'; } } } } else { theData = objValues; } if( this.XmlHttp ) { if( this.XmlHttp.readyState == 4 || this.XmlHttp.readyState == 0 ) { var oThis = this; this.XmlHttp.open('POST', thePage, true); this.XmlHttp.onreadystatechange = function(){ oThis.ReadyStateChange(); }; this.XmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); this.XmlHttp.send(theData); } } } CallBackObject.prototype.AbortCallBack = function() { if( this.XmlHttp ) this.XmlHttp.abort(); } CallBackObject.prototype.OnLoading = function() { // Loading } CallBackObject.prototype.OnLoaded = function() { // Loaded } CallBackObject.prototype.OnInteractive = function() { // Interactive } CallBackObject.prototype.OnComplete = function(responseText, responseXml) { // Complete } CallBackObject.prototype.OnCompleteText = function(responseText) { // Complete } CallBackObject.prototype.OnCompleteDataSet = function(rows) { // Complete } CallBackObject.prototype.OnAbort = function() { // Abort } CallBackObject.prototype.OnError = function(status, statusText) { // Error } CallBackObject.prototype.ReadyStateChange = function() { if( this.XmlHttp.readyState == 1 ) { this.OnLoading(); } else if( this.XmlHttp.readyState == 2 ) { this.OnLoaded(); } else if( this.XmlHttp.readyState == 3 ) { this.OnInteractive(); } else if( this.XmlHttp.readyState == 4 ) { if( this.XmlHttp.status == 0 ) this.OnAbort(); else if( this.XmlHttp.status == 200 && this.XmlHttp.statusText == "OK" ) { this.OnComplete(this.XmlHttp.responseText, this.XmlHttp.responseXML); this.OnCompleteText(this.XmlHttp.responseText); // this.OnCompleteDataSet(this.DataRows(this.GetDomObject(this.XmlHttp.responseXML.xml))); this.OnCompleteDataSet(new DataSet(this.GetDomObject(this.XmlHttp.responseText))); } else this.OnError(this.XmlHttp.status, this.XmlHttp.statusText, this.XmlHttp.responseText); } } //不同浏览器创建不同XML容器 CallBackObject.prototype.GetDomObject = function(st) { var result = null try { if(window.ActiveXObject) { var aVersions = [ "MSXML2.DOMDocument.5.0", "MSXML2.DOMDocument.4.0","MSXML2.DOMDocument.3.0", "MSXML2.DOMDocument","Microsoft.XmlDom" ]; for (var i = 0; i < aVersions.length; i++) { try { result = new ActiveXObject(aVersions[i]);//IE result.loadXML(st); if (result.parseError.errorCode != 0) { alert("An Error Occurred: " + result.parseError.reason); } else return result; } catch (e) { // 不做任何处理 } } throw new Error("MSXML is not installed."); }else { blnIsIe = false; try{ var parser = new DOMParser(); result = parser.parseFromString(st, "text/xml");//MF if (result.firstChild.tagName != "parsererror") { //没有错误发生，进行所需操作 return result; } else { var oXmlSerializer = new XMLSerializer(); var sXmlError = oXmlSerializer.serializeToString(result); var reError = />([\s\S]*?)Location:([\s\S]*?)Line Number (\d+), Column(\d+):<sourcetext>([\s\S]*?)(?:\-*\^)/; reError.test(sXmlError); var str = "An error occurred!!\n" + "Description: " + RegExp.$1 + "\n" + "File: " + RegExp.$2 + "\n" + "Line: " + RegExp.$3 + "\n" + "Line Position: " + RegExp.$4 + "\n" + "Source Code: " + RegExp.$5; alert(str); } } catch(e) { // 不做任何处理 alert("未处理此浏览器的兼容！"); } throw new Error("XML is no