DIV achieve expansion nested pages read AJAX
Use <div id = "DIV logo" type = "digital" ajaxurl = "address"> </ div>
XML format roughly as follows:
<? Xml version = "1.0" encoding = "utf-8?"> <root> <styletype Id="0" imgsrc="images/loading/loading.gif"> Loading …….</ styletype> <styletype Id="1"> <! [CDATA [Loading ….< br> <img src='images/loading/loadingbar2.gif' /> ]]></ styletype> </ Root>
That is the definition of XML id = pattern corresponding to the number of nested read AJAX.
For example a.htm:
<div Id="da" type="0" ajaxurl="b.htm"> </ div>
B.htm:
<div Id="db" type="1" ajaxurl="c.htm"> </ div>
<div Id="dc" type="1" ajaxurl="d.htm"> </ div>
C.htm:
Rtrtrtrtrtrtrt
D.htm:
Aaaaaaaaaaaa
A.htm open in the DIV da b.htm read, and then in having da db, dc two, and then in the process db, respectively dc read c.htm and d.htm
Until the end of nesting
Code as follows:
= (Var ajax … 
/ / Is not the first time FirstTime: true, / / Synchronous detection array Queue Arr: A new $ (), That: false, 
Init: function () (… / / First, the Show browser can run this script (Some browsers can not be used getElementsByTagName) If (! Document.getElementsByTagName) (… Return; 
) This.that = this; This.run (); ) /**//** * Traversal of all div document, if ajaxurl attribute, the application of this script * ** / Run: function () (… / / Get all DIV layer Var divs = document.getElementsByTagName ( "div"); / / Get-SPAN all Var spans = document.getElementsByTagName ( "span"); / / Divs into the array and add all DIV layer A new $ divs = (divs); / / Divs to accede to all of SPAN For (var u = 0; u <spans.length; u + +) (… Divs.push (spans [u]); ) / / Load the first time: join the queue of all arr If (this.arr.length & this.firstTime == 0) (… This.firstTime = false; For (var i = 0; i <divs.length; i + +) (… This.arr = this.arr.concat (divs [i]. Id); ) ) / / Not the first time: the implementation of the existing layer and the End of the queue so bad set, that the new layer of untreated Else (… For (var j = 0; j <divs.length; j + +) (… For (var i = 0; i <this.arr.length; i + +) (… If (divs [j]. Id == this.arr [i]) (… Divs.splice (j, 1); ) ) ) ) / / Layer of untreated cycle, and then the implementation of AJAX operation For (var i = 0; i <divs.length; i + +) (… Var thisDiv = divs [i]; If (thisDiv.getAttribute ( 'ajaxurl')! = Null) (… This.makeAjax (thisDiv); / / Queue to join after the completion of treatment This.arr = this.arr.concat (thisDiv.id); ) ) ) / / Application prior to the implementation of AJAX style MakeAjax: function (theDiv) (… Var url = theDiv.getAttribute ( 'ajaxurl'); Var typeval = theDiv.getAttribute ( 'type'); If (json.result.length == null) TheDiv.innerHTML = "<div align=center style='position:relative;'> <img src='" + + "'/> json.result.styletype.imgsrc" json.result.styletype.content + + "< / div> "; Else TheDiv.innerHTML = "<div align=center style='position:relative;'>" + json.result [parseInt (typeval)]. Styletype.content + "</ div>"; / / Implementation of AJAX SetTimeout ( "doAjax ( '" + + "','" theDiv.id + url +"')", 1000); ) / / Will be "read" the effect of the market available to other procedures used RunAjax: function (theDiv) (… / / Var url = theDiv.getAttribute ( 'ajaxurl'); Var typeval = theDiv.getAttribute ( 'type'); If (typeval == null) Typeval = "0"; If (json.result.length == null) TheDiv.innerHTML = "<div align=center style='position:relative;top:50%;height:100%'> <img src='" + + "'/> json.result.styletype.imgsrc" + json . result.styletype.content + "</ div>"; Else TheDiv.innerHTML = "<div align=center style='position:relative;top:50%;height:100%'>" + json.result [parseInt (typeval)]. Styletype.content + "</ div>" ; ) 
) / / Initialization Function ajaxInit () (… / / Read through URL access patterns to JSON New Ajax.Request ( 'Controller / GetJSon.ashx? Name = ajaxdiv',…{ onComplete: continuerun)); ) / / Applications JSON format, and then continue to deal with Cascade Function continuerun (e) (… Eval (e.responseText); Ajax.init (); ) / / End AJAX after the callback Function doAfter (e) (… Ajax.run (); ) / / Specific AJAX operation Function doAjax (id, url, pars) (… New Ajax.Updater (id, 'Controller / GetHtmlPage.ashx? Page =' + url ,…{ parameters: pars, evalScripts: true, onComplete: doAfter)); ) / / Observe patterns in the window onload function to join ajax Cascade Event.observe (window, 'load', ajaxInit, false);
Method of Use:
Prototype.js rely on the use of the code to be downloaded prototype1.4 above
One / / URL read through the form to obtain JSON
New Ajax.Request ( 'Controller / GetJSon.ashx? Name = ajaxdiv',…{ onComplete: continuerun));
GetJSon.ashx says, reading XML, and put it into the form of JSON:, XML format defined as follows:
<? Xml version = "1.0" encoding = "utf-8?"> <root> <styletype Id="0" imgsrc="images/loading/loading.gif"> Loading …….</ styletype> <styletype Id="1"> <! [CDATA [Loading ….< br> <img src='images/loading/loadingbar2.gif' /> ]]></ styletype> </ Root>
The XML-AJAX pages before reading the definition of the style of display, such as id = 0:00, compared with picture + Loading ……;
Id = 1:00 to Read in …..+< br> + long picture
JSON on XML conversion, please refer to. "The use of Ebay NET XSLT template conversion of XML to JSON"
/ / Specific AJAX operation
Controller / GetHtmlPage.ashx? Page = '+ url simple Acting pages, it provides a pretreatment for ajax, including character sets, such as cache:
Public void ProcessRequest (HttpContext context) (… Lock (this) (… / / The system relative path ConfigurationSettings.AppSettings string path = [ "serverrelpath"]; / / Set up the first information Context.Response.ContentEncoding = System.Text.Encoding.GetEncoding ( "GB2312"); Context.Response.CacheControl = "no-cache"; / / Get fixed parameters Context.Request.Params string page = [ "page"]; / / Get other parameters String [] = context.Request.QueryString.AllKeys querys; String querystring = null; / / Assembly of other parameters If (querys.Length! = 1) (… Foreach (string query in querys) (… If (! Query.Equals (the "page")) Querystring + = "&" query + + "=" + context.Request.Params [query]; ) / / Senate Jump Context.Response.Redirect (path + + querystring page); ) / / No Senate Jump Context.Response.Redirect (path + page); ) ) Public bool IsReusable (… Get (… / / TODO: Add GetHtmlPage.IsReusable getter achieve Return true; ) ) # Endregion )
Tags: CSS DIV, div class, div css, div css Guide, div css layout, div location
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