User Controls Is Very Slow In Loading Page (AJAX)
Aug 23, 2010
I have an .aspx page with multiple .ascx (User Controls on it). One of the User controls is very slow in loading (calls a very slow webservice for the data.). Now, my question is how to render all the controls on the page (so the User can view those) and have a rotating icon for this control (slow one) (till it loads). I know, I need to bring AJAX into picture, but any clarification on that would help as I will be new to AJAX programming.
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Apr 17, 2010
I am using ASP.Net 2.0 with Ajax.
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There is a Tab control in the page, having four tabs. These tabs individually consist of different user controls and other asp controls. Most of these usercontrols in turn consist of other user controls. Every user control contains huge javaScript functions which validate them, populate controls and call web services.
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Jan 11, 2011
Do you know of a library/httpmodule for logging slow loading pages (perhaps for a specific treshold) in an ASP.NET environment?
Google did not yield any results.
It would not be too hard to implement on my own, but why re-invent the weel.
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Jun 22, 2010
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Jan 25, 2011
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Mar 14, 2010
How would you troubleshoot a page that is rendering slowly in ASP.NET?
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Jan 29, 2011
My web app has one main page, which is like a work bench. Within this work bench I have 3 placeholders that I load 3 different user controls into (only displaying one at a time). It works, and loads ok although it is very slow.
For instance; Each user control has a 'New' button. when I click this it takes anywhere from 3-10 seconds just to refresh the page, and display all the original default values.
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I have walked through my code with the debugger in vs2010 and nothing seems to take a long time. I have also used Firbug to try and find out what is going on, along with setting Trace="true" on the page to try and resolve the issue. Its all just numbers to me, I have no idea what is going on.
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Jan 23, 2011
Situation: I have a drop down list which I need to pass on to a webservice on button click. I am using Sys.Net.WebServiceProxy.Invoke to make webservice call.
Everything is happening inside a usercontrol which loads on runtime using dynamicpopulate extender.
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Sys.InvalidOperationException: Cannot serialize object with cyclic reference within child properties.
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I get following error:
The ListView control 'ProductsListView' does not have a naming container. Ensure that the control is added to the page before calling DataBind.
There is no problem when call to service method is parameter less and listitem is not bound.
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Jan 8, 2010
Wasn't quite sure where to post this, seems like the issues could be any number of things, so I'm trying to keep it general... mods, feel free to relocate appropriately.
I am trying to build a page which will load various web user controls dynamically in response to menu selections made by the user, and then allow other interactions inside those controls (such as gridview manipulation and updates). The content page simply has a loginview, an ASP:Menu control, and an ASP:Placeholder. The placeholder is filled by the appropriate user control in response to the menu selection. Selecting a menu item causes a postback and the correct control is loaded as expected.
I realized that using dynamic loading with interactive controls would be a problem with respect to postbacks, so I added a ScriptManager to the content page and enclosed the gridview controls in the web user controls within UpdatePanels, thinking that all postbacks required by the GridView would be handled inside the UpdatePanel and not cause the parent page to refresh (which would then wipe out the dynamically loaded control). However, it does not seem to work this way. Instead, although the control containing the GridView loads correctly and displays data, when I attempt to page, edit, or select any item on the GridView, nothing happens on the first click. If I click on any item inside the control a second time, the entire page refreshes and the control and its contents disappear.
I have removed all the code inside the web user control and placed it directly into the content page to test, and everything functions correctly in that case. I think therefore that I must be missing something with how the user control is working, particularly with respect to the UpdatePanel. Is it just not possible to use an UpdatePanel to confine actions inside a user control that would otherwise cause the entire page to postback, or am I missing something somewhere?
Psuedo-code for the issue below
Content page
[Code]....
Control
[Code]....
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Nov 29, 2010
I want to avoid page refereshing or loding with the of jquery ajax. Here i am attatch my asp page code.
[Code]....
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I know there are a number of ways to show the user that a page is loading with a visual image.What is the slickest and most effective way of doing that. I would like to use Javascript if possible.Presently I can turn on an image calling a function form pageLoad() method of Javascript, but I can't figure out a way to turn it off. Couldn't get pageUnload() to be called.
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Jan 18, 2011
We have installed a web site written by others which is compiled with Visual Studio 2008 and hosted in Windows server 2008 R2.
The IIS connection timeout is set to 120 seconds. But for some pages, the first page loading fails with HTTP 404 error but sequential refresh can bring the page up. The same problem happens for some images which fail to load in web pages. We are not very sure it is network related issue or hosting issue.
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Mar 24, 2011
heavy operation which takes long time to be completed in my asp.net application. I don't want to run the entire operation in one request which may result in a TimeOut error. Instead I want to invoke the operation in a separate thread and poll for the result every x seconds. How can I do this?If the operation gets completed I need to register a script in the ajax postback to hide the loading panel and show the content. However I'm not able to register new scripts and invoke it during ajax postbacks.
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I have a new issue regarding the progressbar I have a page from which i am passing a parameter to CrystalReportviewer on the next page and a converting a Crystal report in to PDF .My problem is i want to show a progress bar while the page is loading (on which crystal Report Viewer is Placed) and writing a PDF file I have already place a scriptmanager Updatepanel and updateprogresbar on that page but the still the page is showing blank while loading the page
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