Indeed, I also think you hit the nail on the head with this explanation, I think you need to know JS quite well to leverage Ajax especially when you start to do more advanced stuff when rolling your own.
"This e-mail is from Reed Exhibitions (Gateway House, 28 The Quadrant, Richmond, Surrey, TW9 1DN, United Kingdom), a division of Reed Business, Registered in England, Number 678540. It contains information which is confidential and may also be privileged. It is for the exclusive use of the intended recipient(s). If you are not the intended recipient(s) please note that any form of distribution, copying or use of this communication or the information in it is strictly prohibited and may be unlawful. If you have received this communication in error please return it to the sender or call our switchboard on +44 (0) 20 89107910. The opinions expressed within this communication are not necessarily those expressed by Reed Exhibitions." Visit our website at http://www.reedexpo.com -----Original Message----- From: Kevin Aebig To: CF-Talk Sent: Fri Oct 06 20:49:17 2006 Subject: RE: Ajax and CF...*sigh*...again... Here's a painfully simple implementation. If you are comfortable in JS, than all this should make sense to you and if there's something you don't understand, send me an offlist message... watch for wrap. Usage: sendAjaxRequest("myurl.cfm", JSFunction, JSObjectAsParameters) <script type="text/javascript"> <!-- function GetXmlHttp() { var xmlhttp = false; if (window.XMLHttpRequest) { xmlhttp = new XMLHttpRequest() } else if (window.ActiveXObject)// code for IE { try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP") } catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP") } catch (E) { xmlhttp=false } } } return xmlhttp; } function sendAjaxRequest(url, statusCallback, paramsObject) { var xmlhttp = new GetXmlHttp(); //now we got the XmlHttpRequest object, send the request. if (xmlhttp) { xmlhttp.onreadystatechange = function () { var functionToCall = statusCallback + '(\'\', false)'; // if (xmlhttp && xmlhttp.readyState==4) {//we got something back.. if (xmlhttp.status==200) { //Return this to handle your own parsing... var responseText = xmlhttp.responseText; var response = eval(xmlhttp.responseText); // if (typeof(response) == "object") { functionToCall = statusCallback + '(response, true)'; } } else { functionToCall = statusCallback + '(\'\', false)'; } } else { functionToCall = statusCallback + '(\'\', false)'; } eval(functionToCall); } // Generate parameters string // var sendVars = ""; for (var i in paramsObject) { sendVars += i+"="+escape(paramsObject[i])+"&"; } // Generate and send request // xmlhttp.open("POST",url,true); xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xmlhttp.send(sendVars); } } --> </script> !k -----Original Message----- From: Jeff Small [mailto:[EMAIL PROTECTED] Sent: Friday, October 06, 2006 12:59 PM To: CF-Talk Subject: Ajax and CF...*sigh*...again... I know, I know...asked about a ZILLION times...but here's all I want. 1. I'm a CF programmer who doesn't use any kind of framework (okay, please let's not go off on THAT tangent). I'm a formally taught CompSci grad dude who's been using CF now for about ten years, never messed with ASP, never messed with PHP, etc... I'm just 100% CF and I roll all my own. 2. I'm a reasonably good Javascript programmer who's done what I'd call "intermediate" JS, but nothing really super DOM heavy. 3. I'm really interested in Ajax, but I want to learn it from a "CF Coder who uses Dreamweaver as his main IDE" point of view. 4. I'd love to see just a simple site or page with an overview of the options for a CF programmer who wants to get into Ajax. Maybe something comparing the various AJAX frameworks out there, or how other CF'ers who don't normally use any kind of existing framework are getting into it. Maybe some simple tutorials to get you to that "AHA" moment... Does this sound like too much to ask? Does such a thing exist, or have I finally discovered a reason to blog? lol... (Jeff's experience getting into Ajax Blog)... -- Jeff Small LHWH Advertising Myrtle Beach, SC 29577 843-448-1123 Ext 254 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:255845 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
