AJAX :: Usability Of Update Panel?
Nov 24, 2010
I have a question over the usage of Update Panel?Is it a good practice to have mutliple update panel in single page or just one update panel containing the whole UI.I have page where I use around 5 update panel, few controls are outside the update panel because I am doing some javascript operation on click those controls.So my question is to put everything in one update panel is good practice or not?Will multiple update panels will create any performance problem?
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Similar Messages:
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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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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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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Jan 2, 2010
I have a panel bar..each time I press panel bar item I display ascx control with in update panel..but it lakes update panel loading time lot..how I can decrease that loading time?
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Aug 30, 2010
I have an AJAX Modal Popup panel that contains a RadioButtonList, 2 labels and 2 DropDowns. I want to update the Labels and DropDowns when a radio button is selected. My attempt at this posts back which causes the ajax popup to disappear.
aspx called on image click:
<asp:Panel ID="pnlModalContainer" runat="server">
<asp:RadioButtonList ID="rblTest" runat="server" RepeatDirection="Horizontal" OnSelectedIndexChanged="rblTest_SelectedIndexChanged">
[code]...
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Jun 8, 2010
I'm new to the world of Update Panels and i'm having a hard time figuring out how to use them properly.
I have a form that has a table(TABLE1)...and inside TABLE1 i am linking to a sql data source....at the bottom of the table i have a 'Add' button.
When the user clicks the add button...a modal popup appears (POPUP1) and inside the POPUP1 the user can click a link that can add a user...when the link button is clicked...a panel within POPUP1 is set to visible = true.
I have one update panel around the whole table and the add button...when i click add and then click the link to add a user....the modal popup disappears.
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Jul 17, 2010
i have a panel out of update panel.i have to make it hidden while navigating through different tabs,i tried these codes
Panel1.Attributes["style"] = "display: 'none';";
Panel1.Attributes.Add("style", "DISPLAY:none;");
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Jun 21, 2010
I have a formview in Edit Mode, within an update Panel all and these arewithin a Modal Pop Up extender.On clicking Formview Update button, I want an image to appear within the pop up.I have put the image within another panel1 and runat server.For some reason the image is not showing on clicking update button.
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Jul 22, 2010
how to catch update panel's request start (before partial updation request is sent to server) and response receive (before update panel is updated) events.
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Feb 16, 2010
I have a user control, that has an update panel and update progress control in it.
I use this user control in more than 1 location on the same page.... problem is, when ucA posts back, I see the update progress control for both ucA and ucB. I assume this is because it is a user control and the update panel and progress are named the same?
Either way - how do I make it so that the update progress only displays for the proper user control?
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Jul 14, 2010
I've exempted the irrelevant bits of code. Essentially, I am trying to change the URL of an image control inside of an update panel inside of a custom user control from a function called inside an update panel from my main page. Using UpdatePanel.Update() isn't working: I end up waiting for the next full page POST to occur before all the updates I make to CustomControl from buttons within the main page's update panel are visible. I verified that Update() was being called via the debugger: there are no issues in that department.
Here, you can see Custom Control and the Button declared. The button is in an update panel to avoid giving a full POST and causing the whole page to reload.
<cust:CustomControl runat="server" ID="CustomControl1">
<asp:UpdatePanel runat="server" ID="UpdatePanel1"> <ContentTemplate>
<asp:Button id="Button1" runat="server" OnClick="DoStuff" />
</ContentTemplate> </asp:UpdatePanel>
This control stores images within their own seperate update panels because rerendering the images is very slow (it requires processing arrays of millions of datapoints) and the user only ever needs to modify one image at a time. I'm using Image1 as an example.
[Code]....
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May 17, 2010
i am attempting to use javascript to update the chart, because how i have setup now causes the chart to just disappear. Here is the code i have now: I am calling the chart to page using: on default.aspx
[Code]....
Code on the dataURL_Infrasturcture_Capacity.aspx page:
[Code]....
PROBLEM: So how would i update this using an update panel and timer. Currently when i do it the chart just disappears on update. I believethis is due to the fact that i am calling a dataURL. How would i get this to work javascript?
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Mar 18, 2010
I am building a system for a school project. I currently have several Update Panels on the page that have many different controls on them. I also have a single Label control that i use to display messages to the user. I would like to have this label within an update panel also but there are literally hundreds of triggers that would require it to be updated and i dont want to type an absurd number of triggers for this one control.Is there a way for me to have this one panel update regardless of what happens?
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Jul 29, 2010
i am confused about the fact that if partial update of dropdowns is possible through Update Panel ,then why we should use asp.net ajax Cascading drop down extender ,that has made same task bit complex by making callback to web services ? what is difference between using update panel and cascading drop down extender ?
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Aug 6, 2010
I have the following function that is trigered from an asp dropdownlist when an item is selected.
[code]....
The script sets a url depending on the selection from the dropdownlist.
It all works ok, but then the update panel updates and the javascript photogallary breaks.
How do I prevent this from happening.
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Aug 9, 2010
I have update panel , in update panel i have one button control which exposes onlientClick event ( it dosent have click event to do postback to server).
and i have one updateprogress panel. So my problem is though i'm performing operation on client side , internally the async event is firing and making updateprogress panel to act (having rotation gif image) which i dont want , as it rotates for 10-15 sec more even after the operation at client side is done !
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Apr 4, 2012
I have a requirement like need multiple update panel in web page and also i want to load only one (targeted one) update panel content when I click button on another update panel.
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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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Nov 25, 2010
when postback occurs due to update panel's child control then in page load event how can i know that it was dut to update panel ?i.e., i want to differentiate between general postback and postback due to update panel's child control in page load event .How is that possible ?
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Aug 31, 2010
I have written a Crystal reports web application, that prompts ths user for parameters and then apply them and exports the report to a folder as .rpt and then display the report.
I prompt the parameters on one screen and then display the report on another page. I have the AJAX update panel and update progress controls in the parameter page. When the user enters the parameters and click on ok, I export the report and then loads the report to a session report document and transfer the user to the second page where the report is displayed. I use the following code to do transfer to the seconds page.
I have excluded the report load and parameter assign code here.
[Code]....
In the second page I have the following:
rptViewer.reportsource = Session("rpt")
My problem is this works one time and then stops working the second. What I found out was it comes to the statement:
Response.Redirect("show.aspx")
But it does not even load the show.aspx page. It stays on the parameter page. There are no errors displayed. I could not see any errors when I debug the application also. And out of the blue it works sometimes. And if I remove the update panel and progress control, my report works all the time.
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Mar 2, 2011
i have update panel which has button inside
so when i click button, the update panel refreshed auto.
the problem is i want to fire java script when i press the button
[Code]....
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Apr 27, 2016
Is it possible to use a script manager, then surround a listbox with an update panel, so that when ever any button is pressed like insert/edit,delete, cancel that it will trigger on these buttons and do an ajax update on the whole listview, if so how ...
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