Ajax Updating Update Panel Automatically?
Feb 4, 2011
I have an Asp.net page which requires certain sections to be partially updated automatically at an interval of 5 seconds. I was planning to use the good old Timer control with the AJAX Update Panel for this purpose, but after a bit of reading on this control i found out that it may have some problems especially if,
1) The time difference between the async event performed ( 4 seconds ) by the update panel and the Timer's tick interval ( which is 5 seconds ) are quite small, the update panel will be held up in the async operation all the time.
2) Also, the fact that timer control doesn't work very well with Firefox.
I just wanted to get your opinion as to whether if i should go ahead with the timer and update panel approach, write some custom javascript that does the partial page update or some other strategy altogether.
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Jun 5, 2010
I have a panel withitn an updatepanel with some buttons.
When one of the buttons is pressed, I'm updating a different update panel.
The problem is that when I click the button, nothing seems to happen.
If I click the button again , then I see the first update. If I click it again, I see the second update and so on..
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Jan 12, 2011
Above is my code to call a hidden DIV:
[Code]....
And above the html for the DIV:
[Code]....
on Code behind:
[Code]....
Now i was trying to use an UPDATE PANEL, in order to when i click button Save, only the DIV updates. Because the whole DIV is closing when i click on SAVE, even if i put a div in an update panel.
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Dec 9, 2010
I am having a weird issue with the update panels. I have an update panel in UpdateMode = Conditional . I have a dropdown list and a grid view..the gridview has to be updated ÖnSelectionChanged event on the dropdown.
The issue here is on changing the selection on dropdown, the onselectionchanged event is triggered, new data is grabbed, bound to gridview..but does nt update the update panel even after the updatepanel.update();
[Code]....
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Dec 29, 2010
My code behind: Label lblError = row.FindControl("lblError") as Label;
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Oct 12, 2010
I need to update the div tag based on the selection made in the dropdownlist. I'm not able to update my div tag. My code goes like this:
[Code]....
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May 10, 2010
i have a page it contains a Update panel Pannels.
in it we have a Button it will open a pop up window.
when we select any item in the Pop up the update panel in the Parent window would Relaod with the selected value iun the pop up.
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Aug 27, 2010
I have 2 gridviews in an update panel that for some reason will not update. There is no data entry, paging, sorting going on, the data is just there to be displayed. I'm using a timer that initiates every 5 minutes to trigger the updatepanel. I also have an updatepanel on an additional page where I am also using a trigger to fire the updatepanel with 2 charts and 1 oneline/column gridview. The 2 charts update just like they are supposed to however the gridview does not. Here is the code for the 2 Gridview aspx page:
[Code]....
Does anyone know the solution to this issue or if Gridviews just don't refresh in UpdatePanels.
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Mar 17, 2010
I have 3 update panels on a Web User Control. Two of them are nested inside of a main panel. It is supposed to update the database with the user input, then update the panel changing the validation. (I change the textbox border to red when it is empty). However, none of the panels are working. I have ever retyped the entire pages, and no luck. I have tried using trigger collections, and even putting everything in one content collection. C# Code - Web User Control
[Code]....
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Jul 14, 2010
I am using Ajax to update my UpdatePanel every 1 second and it is working perfectly with my gridview. However, when I placed a image into the UpdatePanel, which it supposed be changing and updated every 1 second, it does not update but the gridview does. Gridview is getting active changing data from the database without any problem. The image which I want to see the updating is the StreamImage.jpg. StreamImage.jpg is inside my local directory. It only updates when I hit the refresh button.
<asp:Content ID="Content4" ContentPlaceHolderID="ContentPlaceHolder2" Runat="Server">
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Feb 7, 2011
l want to block my ui when update panel is updating
like this
[URL]
we have some issues so we are not using this plugin
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Oct 5, 2010
I have one update panel which is having tPlaceholder which is loading dynalically.
[Code]....
in the CS file on page load, adding Placeholder dynalically
[Code]....
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[Code]....
onclick of Add Topics button, both the update panels are getting updated. I want only the inner update panel should update.
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Aug 3, 2010
I have a link button inside an update panel. The problem is the link button on postback is updating the whole page. Tried it with a normal button and the page is not refreshed all. Here's the code.
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
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Jul 28, 2010
I am a new developer and working on a ASP.Net Site, I am using an Update panel which is updateing the data from SQL database after every few seconds, there is some records in the table for the login user. Now I want to generate a Popup, or Alret Message autometically, every time when update panel is updated, My Update panel has SQLDatasource and gridview its working correctly with timer after every 15 seconds.
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Nov 27, 2010
I am using asp.net 3.5 c#. I am trying to do this:
In one page, a user can insert some stuff (name, phone .. etc) to the database. And then the user should be able to see the rows he added as a list automatically in a datalist (or other control). As he inserts rows, it appears in the datalist.
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Jul 2, 2010
I found some code on the web and it threw me off. Look at the code below. You will notice only when the Hits == 1, does the cache get added. After that, the cache object isn't updated. It begs the question, does the object when updated, update the cache as well automatically? The answer here would make me remove some code in some of my classes.
public static bool IsValid( ActionTypeEnum actionType )
{
HttpContext context = HttpContext.Current;
if( context.Request.Browser.Crawler ) return false;
string key = actionType.ToString() + context.Request.UserHostAddress;
var hit = (HitInfo)(context.Cache[key] ?? new HitInfo());
if( hit.Hits > (int)actionType ) return false;
else hit.Hits ++;
if( hit.Hits == 1 )
context.Cache.Add(key, hit, null, DateTime.Now.AddMinutes(DURATION),
System.Web.Caching.Cache.NoSlidingExpiration,
System.Web.Caching.CacheItemPriority.Normal, null);
return true;
}
I would only guess that I would need to add the lines after the if statement:
if( hit.Hits == 1 )
context.Cache.Add(key, hit, null, DateTime.Now.AddMinutes(10),
System.Web.Caching.Cache.NoSlidingExpiration,
System.Web.Caching.CacheItemPriority.Normal, null);
else if (hit.Hits > 1)
{context.Cache.Remove(key);
context.Cache.Add(key, hit, null, DateTime.Now.AddMinutes(10),
System.Web.Caching.Cache.NoSlidingExpiration,
System.Web.Caching.CacheItemPriority.Normal, null);
}
Found the code at the bottom of the page here: http://www.codeproject.com/KB/aspnet/10ASPNetPerformance.aspx?msg=2809164
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Mar 1, 2011
How can i automatically update a user control after a specific time without updating the whole aspx page.
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Apr 14, 2010
I am having trouble wiht my AJAX collapsible Panel Extender. I have the CPE opening a panel that contains the Table of Contents of a document being displayed on the page. A user clicks on the link for a certain part of the document, the event triggers a C# function that gets the file that particular section is contained in an displays the section. Right now you have to, of course, click on the TitlePanel to open and to close the CPE. What I want to do is have it close automatically whenever a link inside the content panel has been clicked. I have tried placing this.cpeTOC.Collapsed=true; in the functiion that gets the files but it does not work. I have also tried the autocollapse property of the CPE and it just collapses whenever someone moves thier mouse from the titlepanel.
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Sep 5, 2010
We have two update panels on our webpage. Now first update panel is having button cancel. While second update panel is having a file upload control.
Now if the user uploads a file that is going to upload in about 2 mins, and in between, say after 30 seconds the user clicks the cancel button, the upload taking place in update panel 2 should stop.
How do we achieve this ?
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Feb 24, 2011
Since my content is embedded in my master page, if I place an update panel around my complete Master page controls including the content placeholders, are the content pages automatically included?
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Jan 6, 2010
I have to update a gridview inside an updatepanel in a button click.The thing is i'm having gridview in contentpage.I have placed scriptmanager in masterpage.when i clicked on the button to trigger the updatepanel,no update is happening in gridview.Moreover,after placing updatepanel control in contentpage,i saw a redcurvedline (which is an error basically) below the updatepanel control's text which is showing an error as "Element 'updatepanel' is not known element.This can occur if there is a compilation error in the website" in .aspx page's source view.I have attached the screen shot here of that page here for your reference.
But it's working in ordinary web page.
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May 9, 2010
I have an UpdatePanel and inside that I have an Accordion and several panes. From the first pane i can push three ImageButtons. Each imagebutton will load a control into a Placeholder in another Pan - still in the same accordion though.
The problem accur when I push the buttons. After two or three push the buttons will stop responding and nothing gets loaded into the Placeholder.
[Code]....
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Jan 7, 2010
I am using gridview with update panel Animation extender for updating effects. Everything is working fine but when page expires(means session ends) and I try to uupdate(edit,delete record) it fadeout the grid but donot fadein and shows following javascript error as image. I want if session ends it should redirect to login instead of fading out and showing javascript error message
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May 16, 2010
I have one update panel inside updatepanel i have one dropdownlist .When i change dropdownlist value so as per value button1 which is out of updatepanel not visible =true or false as per dropdownlist value.
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Aug 4, 2010
i have my master page with one update panel working like a banner, so when the timer do tick every 5 sec
the image change. That works fine, but i have an update panel in my index page, this update panel works with some buttons that change the text inside the panel when click.
Now, the problem.
When i click one button to change the text and the banner change, the text returns to his default text. The update in master page is affecting the update on index page.
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