How To Port A ScriptManager UpdatePanel To A JQuery-based Solution
Feb 14, 2011
We are currently migrating the client part of a legacy webapp from asp.net ajax to jquery/jquery-ui. The app consists (among other things) of some asp.net ajax UpdatePanels.
Now I want to throw out all that __doPostback() stuff and talk with jQuery's $.ajax to the "server-side" of the .ascx controls. Ideally, the server reponds with some parseable Datastructure that I can throw into my jQuery UI controls.
I already realized that this is difficult to do, because the asp.net ajax client/server code is heavily interwoven and there are no public interfaces to hook into ajax requests or responses. However, we don't want to change the server-side code, because it should still run with the old asp.net frontend.
After some tweaking I found out that I can hook into ScriptManager's beforeRequest and endRequest events to get notified of postbacks and partial responses. I dispatch these to jQuery Events:
var paqeRequestInst = window.Sys.WebForms.PageRequestManager.getInstance();
//bind ASP.NET ScriptManager events to jQuery events
paqeRequestInst._events.addHandler('beforeRequest', function(){
$(window).trigger('beforePanelResponse');
});
paqeRequestInst._events.addHandler('endRequest', function(pageRequestInst, ErrInst){
$(window).trigger('afterPanelResponse', [pageRequestInst, ErrInst]);
});
However, a lot of questions remain:
What is the best way to intercept the ScriptManager Response, parse it, and throw it into my jQuery UI controls? How do I update all that __VIEWSTATE stuff, that is normally managed by the ScriptManager?
Are there best-practices/jquery-plugins for such a "asp.net ajax to jquery" scenario?
I have a page with a ScriptManager / UpdatePanel. I currently need to PostBack to a https page from an http page (different ports). I also need the same session data. Currently, I copy my form to a new form, and when I postback to my new Target on a new Port, I get a crash in xmlHttp..something. I will have to post more details later.
I'm currently wondering if this is possible. And does anyone know of such a fix. I even tried to Turn off Partial Rendering and I still get crashes. I can't do this until I pull out the scriptManager / UpdatePanel.
I have a user control with both an UpdatePanel and a ScriptManager.
Some pages in the system have a ScriptManager of their own, and need to include the UserControl.
This throws the "You can only have 1 ScriptManager" exception.
If I remove UserControl's ScriptManager, I'll get 'UpdatePanel1 requires a Script Manager" exception.
I've tried to modify the UserControl to dynamically include it's own script manager if none exists. But all the methods I've used before involve adding a delegate to Page.OnInit-- which won't work, since the UserControl Init fires first.
Because the system designers here like making my life difficult, I can't create a MasterPage, or a BasePage for the system in inherit off of. I'd be stuck going to each page an adding a ScriptManager before the UserControl on each of them. Is there any way of, in the UserControl, detecting if the page has a ScriptManager, and if not, adding it dynamically in a way that makes the UpdatePanel happy?
I'm finding that the scriptmanager and the updatepanel and basic implementations of AJAX for ASP.NET. I'm just wondering whether these were required to use AJAX and partial page update and referencing handlers such as button1_click on the server code page ?
Also if i can ask another question, I'm also wanting to know whether the updatepanel can support feed-in like facebook ? What I'm wanting to do is have something that updates the screen (like the update panel), and items within this panel contains links. When the user clicks on the link it shows a modal div, giving the user options to do some updates. Once the user clicks submit, then this makes a call to the server to update the details then also update the panel. Within the panel I also want to move some of the div elements using javascript (causing the drag and drops to save to the database).
I have a small website that uses 1 masterpage and several content pages. I'm able to insert a <ScriptManager> onto my content pages (just a couple of them). However, when I try to insert the <UpdatePanel>, it won't take it. I tried to wrap the <UpdatePanel> around a <Div> and it didn't like that, so then I tried wrapping the <UpdatePanel> around the actual textbox and it didn't like that. Below is some sample code.
We have a ASP.NEt 4.0 project i just started. For some reason the ScriptManager, UpdatePanel and ListView controls have 0 intellisense, give me element not found errors and are really starting to $@#% me off. in 3.5 everything works fine. BUt in 4.0 none of these controls work (although they all exist in the toolbox). I do NOT have any Ajaxcontrol Toolkits installed for any previous version of ASp.NEt. I DO have the proper System.Web.Extensions dll referenced and it does exist.
My web.config is TINY though (is this new to 4.0?) i noted that in my compilation tag all i have is :
wheres in 3.5 in this were loads of references to the assemblies. Do i need this? I uninstalled and re=installed VS 2010 2 tiems today and its still the same.
I have looked through this site and just can't seem to find the answer I am looking for.
We have a multi server setup for our web sites, typically (DEV/QA/PRODUCTION). Our sites are .net which require some sort of build before being deployed. We are using SVN for source control and are looking for a tool/website/something that will allow our project managers to push button deploy changes to the different environments. It seems there is no silver bullet for this, am I correct in this assumption?
I like the functionality of Springloops but can't find any information regarding its use with .net. Sparing details, it would be nice to see a diagram of sorts on the whole end to end process. What I mean by that is, if multiple different tools are the only answer (no silver bullet), then a diagram that shows where the tools sit in relation to the whole process.
I have two websites (one asp classic and the other asp.net) which we would like to implement some kind of security based on the client's hardware. We want something other than a password which could be shared. The purpose is to be sure access to information on the websites is not shared.
We were contrmplating storing hardware info in our database and validating against that upun website entry.
I have been looking into ActiveX (it would be acceptable to limit our users to IE), although we do have users who would like to use I-Phones. I have done no ActiveX development myself but have found a few articles on the web about ActiveX but that whole approach looks complicated. And also there seems to be a 64bit issue making it even more difficult.
So, I wonder if anybody has any advice as to what the best options might be for securing the website access in a way that would prevent sharing?
Is there a way to use the .NET ScriptManager in Explicit mode to inlcude the CDN JQuery file(s)? There is plenty of dicussion and information about including the indivudual AJAX framework files such as "MicrosoftAjaxCore.js", but since AJAX uses JQuery, I thought there might be a way to explicitly include the JQuery file(s) using the ScriptManager rather than hard coding an address to the MS CDN.
I got a problem in my Asp.net application.When I try to save some data, I check if the data is right, When not I call a jquery dialog with the error message. But when my jquery dialog appears, my background form dissapears.and I get a javascript error: "html parsing error unable to modify the parent container element before the child element is closed".This is my jquery dialog call in codebehind:
string script = "openDialog('" + text + "', '" + title + "');"; ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "open", script, true); function openDialog(text, title) { ar $dialog = $('<div></div>') .html(text) [code]...
Webform with button, onclick I would like to execute jquery and call a server function in my code behind. Is this possible and can someone show me a brief example of how to.
I load an aspx page in iframe inside a jQuery UI dialog to update some data, and after dialog is closed I need to update an updatepanel in parent page. how can I do that? to be more specific, there is a datagrid in parent page and after I edit data in a dialog modal iframe, I want to update the row in datagrid.
I am using multiple user control in my web page. Each of these usercontrol has $(document).ready() method. Because i am using an update panel, i am binding all the events again in end_request event. But I dont want to do that in all my usercontrols. Is is possible to do this at a common place(only once)?
I'm trying to create a .NET solution and add class libraries to it. First - in VS2008 I go to File > New > Project > Other Project Types > Visual Studio Solutions > Blank Solution. Then - after VS2008 creates the blank solution I right click on the solution and select Add > New Project > Visual C# > Class Library. However, when I add the Class Library to the solution, the solution icon disappears from Solution Explorer (although the solution name is still in the VS2008 title bar). Why does the solution icon disappear from the Solution Explorer when I attempt to do this?
Please forgive this ignorant question - I've used ASP.NET AJAX a good deal but I'm new to jQuery. Specifically, is it possible to call or create jQuery events on the fly via an UpdatePanel? For example, calling a jQuery modal or animating a Label (or <div> contained Literal)etcIf anyone has any advice or could point me to some easy tutorials on mixing ASP.NET AJAX and jQuery,
I have a asp.net page with two jquery button.All is in an updatepanel. When I click on Jquery button all work but after all stops to work.This is code of one button:
does anyone know if its possible to replace the updatepanel in asp.net ajax toolkit with some kind of jquery?
Basically we use the update panel so that when we do postbacks that the screen doesn't actually do a full refresh .. just the values ..
I am using jquery for a lot of other stuff and would love to know if there is some way to do this or even if a jquery plugin exists that lets you do it.
I am a bit unsure but would this mean i have to rename all my methods to static and decorate with the webmethod attribute?
If this is the case, it maybe a lot of work :-)
And of course how would Page_Load execute if it was a static webmethod?
I have an UpdatePanel with a MultiView inside. I am using jQuery to call the server to run some logic and based on it, change the view in the MultiView. The problem is that the updatepanel is not getting refreshed.
I have an update panel on my page with some links that have onClick events that trigger a JQuery box to pop up. This works fine unless an AJAX postback has occurred. I saw some code on another post:
I am using BlockUI to show a modal. Within the blocked modal I have an update panel. Within the update panel I have a textbox and a button that submits the content back to the server. Everything works fine up to this point (the blockUI is called, the modal appears, and the button performs the postback). However, when the button's click event is fired the value for the textbox is consistently empty even if text was entered. When the update panel updates the textbox shows up blank. It appears that this may be some sort of viewstate issue and I haven't turned off viewstate.
I have a web page, where I'm using a jQuery UI datepicker on an asp.net textbox, which is located inside an UpdatePanel. Here is a description of what I do roughly
When I first load the page, everything works fine. When clicking inside the textbox, the datepicker pops up. But when I click the button, and an async postback is executed, the datepicker no longer pops up, when I click the field again.I know that the problem is because the UpdatePanel completely replaces all the contained HTML when it is updated, so in effect, it is a new text field, which has not been initialized with the datepicker functionality.
I guess that I should not use $(document).ready() here to initialize my datepickers, but where is a good place to place the initialization code? Or is there a way that I can retrigger the initialization code after an AJAX update?
