C# - Prevent An UpdatePanel From Updating Programmatically?
Feb 11, 2010
I have a GridView inside an UpdatePanel and because of some bug I can't seem to find, when I download a file (through an iframe inside another updatepanel) the background images of my buttons don't show up.I thought that, since the download doesn't really need to update the panel (which is causing the bug) I want to prevent the UpdatePanel only in this case from updating.I know that I can use the atribute "ChildrenAsTriggers = false" but I don't want to put an updatePanel1.Update() in every function called from inside the gridview.
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Similar Messages:
Jan 30, 2011
How to prevent the content of the UpdatePanel from the PostBack which is occurred in the whole page ?
I have the following code:
<head runat="server">
<title></title>
<script type="text/C#" runat="server">
// I don't want it to call this event handler
[Code]....
The previous code will write in the TextBox2 in spite of it exists inside an UpdatePanel with Conditional for UpdateMode.
I want it to update only when I call UpdatePanel1.Update();
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Feb 21, 2011
I would like to ask if there is a way to prevent Firefox from caching scripts (.js files).
I have a project (ASP.Net Web App) with caching issue on firefox. When I first run the application (script is being cached on firefox) and modify the script and rerun the application, firefox is using the cached script instead of the updated one.
I'm using Firefox 3.6.13.
I already tried using HttpHeaders but it seems like firefox is ignoring my codes.
Here is my code:
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
HttpContext.Current.Response.Cache.SetAllowResponseInBrowserHistory(false);
HttpContext.Current.Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1));
HttpContext.Current.Response.Cache.SetNoStore();
I tried placing this code at global.asax > Application_BeginRequest and at MasterPage.aspx.cs > Page_Load, but it isn't working.
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Dec 15, 2010
i am using windows server 2003 and 2008 am about to install a web application on a server that is connected to other computers using simple wired network i.e. no active directory, no domain controller etc..
my question is:
is there a way to prevent mac addresses outside my specified list from accessing my application ? should it be through IIS or Web.config or should i put certain code in the page load events.another concern: if i use an SSL to secure my application, is it enough along with a reputable anti virus to prevent a virus to access my server through any network computer using my web application
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May 13, 2010
I have master page with a button of user's connection and with a LinkButton. The problem is that inside the master page I have a registration page that conatins some validators, and callout extender. When I click the button of connection or the LinkButton that are outside the registration page, but on the menu page (=the masterpage), I get the callout extender that pop out without a need. If i wasnt so clear: I cant use any button outside the registraion pagem because of the validators and the calloutextender, who are at another UpdatePanel at all! The buttons I cant use are at another UpdatePanel, and still a else validation from another place is pop ou and cancel my abillity to use those buttons.
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Dec 14, 2010
I have a button in my dataview that drives the update:
<asp:Button ID="btnUpdate" runat="server" Text="Submit Bid" CommandName="Update"
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Apr 26, 2010
I am trying to write a quote generator. For each product, there are a set of options. I want to dynamically add a drop down list for each option, and then have their SelectedIndexChanged events all wired up to update the quote cost.
I am not having any trouble adding the DropDownList controls to my UpdatePanel, but I can't seem to wire up the events.
After the page loads, the drop downs are there, with their data, but changing them does not call the SelectedIndexChanged event handler, nor does the QuoteUpdatePanel update. I have something like this:
Edit: Since programmatically adding AsyncPostBackTrigger controls is not supported, I've change my code to this, but I still don't get the event:
Edit 2: Tried adding a PlaceHolder to add the drop down lists to (instead directly into the ContentTemplateContainer, still no events firing.
[Code]....
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Mar 5, 2010
I've the following code:
<asp:UpdatePanel runat="server" ID="upanel1" >
<ContentTemplate >
<div id="west" class="x-hide-display" style="background-color: #9eb5bc; height: 100%;">
<ul id="list_0" runat="server">......
updatepanel not updating HTML
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Nov 30, 2010
I have a LinkButton inside an UpdatePanel that I do not want the client to click more than once before the UpdatePanel refreshes its contents. Right now the link button initiates a partial postback for every client side click until the update panel has time to refresh. This particular link fires off a very expensive process which I'd rather not have run unnecessarily. Is there a .NET standard way of doing this? Whats a good solution for this?
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Mar 5, 2010
I've the following html
[Code]....
and my server code is:
[Code]....
the sever code is executing correctly but the page's html is not updating.
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Mar 8, 2011
I have a very simple application that works almost all the time. I am using an UpdatePanel. My script manager is configured to enable partial rendering. My UpdatePanel is configured for conditional update mode. My asynchronous trigger is a timer that runs every 3 seconds. I track unhandled exceptions in the database. I am not getting any unhandled exceptions. Nor am I getting managed exceptions. Now, I had two users side by side running the application today. I had one record in the data queue. The first user did not get updates; her grid did not update. The second user did get updates. The only difference was that the first user was logged in for a long period of time. The second user logged in just before the test. I reviewed the IIS log file and both users were polling the page every 3 seconds for the same data. So why didn't the first user's grid update? The code follows.
<asp:ScriptManager ID="ScriptManager1" runat="server" AsyncPostBackTimeout="30" EnablePartialRendering="true"></asp:ScriptManager>
[Code]....
In my code behind I have the following timer logic. [Code]....
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May 10, 2010
I have a couple of dropdowns inside an Ajax Update Panel. When I try to rebind the controls or set the selected index of the drodowns inside the panel, they don't respond.
For example, I update the database records and need the dropdowns to display updated data. I set the data source for the dropdowns, rebind them and update the UpdatePanel, but it still shows the old data.
[Code]....
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Oct 21, 2010
this is my first post in this forum, even though I often search for helps and clarifications over its threads. And many times they are definitely useful!!I had a <asp:ScriptManager> in may MasterPage, wich was used to manage various UpdatePanels I have either in Content pages or in MasterPage.Today I inserted a CalendarExtender, so I had to replace the ScriptManeger with the AJAX ToolkitScriptManager.
At the beginning it seemed to work fine (the calendar pop up and others controls got updated properly). Then I noticed that the nodes in various TreeView are not expanding any more. The TreeViews objects are placed inside an UpdatePanel, in order to expand each node without refreshing the whole content page. And, while a node expands, an UpdatePanel containing a GridView in the content page gets updated.Now, with the new ScriptManager they do not expand, but when clicking on a single node the GridView is updated properly.Here some pieces of code:
[Code]....
Controls registered as triggers.I know I can use only one script manager per page,
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Feb 16, 2011
I am creating a web part, which is loading an ASCX file. This ASCX contains an Updatepanel and linkbutton inside the update panel.
When i click on the link button for the first time, there is a request going to the server, but the UI is not getting updated. and if you click on it for teh second time, there is not even the request going to the server.
I tried using a button also, but there was no luck, the results were same, first time request fires, but the UI is not updated. and the second time even the request is not fired.
I have put the code for both below. i am using Sharepoint 2007 and My master page contains a Script manager as well.
[code]...
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Feb 9, 2011
I have an updatepanel with a radiobuttonlist, which looks like this in my markup code:(also, I tried specifying the AsyncPostBackTrigger with the specific eventname "OnSelectedIndexChanged" - no succes either).
[Code]....
In code behind, loads of things happends. But the primary important thing is this method which is being called:
[Code]....
Now, in each postback this is set as a datasource (it is not loosing its datasource because of some timer).What my problem is: Even though the Page_Load event is being fired and I can see the datasource has changed, the content I see in the radiobuttonlist stays the same!
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Jan 15, 2010
I develop an ASP.NET web application. The server side receives a stream of image data (JPEG frames as byte arrays).
It should processes them and send the images to the client side periodically.
For displaying these images on the client side I tried to use an approach similar to this described in the post "Improve your Image(s)" (http://steveorr.net/articles ImproveYourImages.aspx) by using an auxiliary ASP.NET page for the purposes of the server side image processing.
When I used a client side button to request the image ocntrol (imgCameraCapture) update with its URL pointing to the processing page (GenImage.aspx, as in the above post), everything worked fine (with exception of the whole page re-rendering on each button event). The image was updated.
For a periodic update of the client image control on the main page I put in an ASP.NET AJAX UpdatePanel andset it to update conditionally by triggering to an ASP.Net AJAX timer (10 seconds) event in order to achieve a partial page update (just the image).
II used the timer tick event handler to update the image by invoking the separate ASP.NET image data processing page there as in the button click event handler. But in the timer tick event handler the processing page was not invoked and the image was not updated.
This is the C# code behind executed in the button clik and timer tick event handlers:
imgCameraCapture.ImageUrl = "~/GenImage.aspx";
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Jan 30, 2011
I have an user control inside an UpdatePanel. Once an event is triggered and updates the user control - it seems to lose its css styles. This happened to me in IE8 only, while in Chrome and FF it was fine.
A user control for example:
[Code]....
In Chrome and FF it seems to be working as expected (button click causes current time to display in the user control, nothing else happens), but in IE8 the div inside the user control loses its styles (background color, borders). What could be causing this problem, and what can be done to prevent it?
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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]....
And in Topics.aspx file, I have added one more updatepanel
[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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Sep 2, 2010
I either don't understand or I'm not using AJAX right. I'm running a long report. I'd like to have a label to show the user that the "Report Running", then, that the report has finished. But, when the user runs another report, I'd like to have the label that shows "Report Finished!" to clear so that you don't have "Report Running!" and "Report Finished!" on the screen at the same time. But, the label will not clear???? I get both lables showing. What am I doing wrong?
Here is a sample:
<asp:UpdatePanel ID="UpdatePanel2" runat="server" >
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" /> [code]...
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Feb 24, 2011
I have webpage and a master page.In master page I defined a Label and ContentPlaceHolder :
[Code]....
In my webpage I have an updatepanel and a button that updates the Label.[Code]....
[Code]....
If the button is inside updapanel, nothing happens when I click the button (Label is not displayed), but if I move button outside the panel it works. (Button must be inside updatepanel and ofcourse no PostBackTrigger)
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Mar 11, 2010
I'm using ASP.Net 2008 and C# and Ajax. I have wired up my ajax updatepanel to update the buttons within them in the gridview control's RowCommand event. However, at the end of this event, I call the Response.Redirect(commandArgs[2]); to open either Word or Adobe docs that user selected. And this line of code stops my Ajax updatepnael to update my 2 buttons' enabled properties. I thought maybe there is another way to open docs that won't interfer with my Ajax updatepanel and what will that be?
[Code]....
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Feb 1, 2011
GOAL: on a web page (vb.net) content in a placeholder will refresh with a different .ascx (user control) every 30 seconds (rotating 3 in total) and of course i dont want to refresh the whole page, just the placeholder.
I'm new at AJAX (that's my first problem - lol)
I set the timer up to call a function, but not sure how to go about refreshing the placeholder with a different ascx file. I'm sure i'll be using UpdatePanel to do this, but haven't been able to figure this out. Easy to replace a value in a label using AsyncPostBack trigger, but nothing on how to achieve this.
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May 6, 2010
I have the following code -
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Always" >
<ContentTemplate>
<asp:Image ID="Image1" runat="server" ImageUrl="~/captcha.aspx" /> [code]....
Problem is the lblname1, lblphone1 and lblemail1 do not update on the page with the new values, if I step into the routine I can see the values and a success asssignments but on the page I get NO values. I removed from code the updatepanel and I get the values on page.I also tried conditional updatemode with no success but again I get NO values.
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Dec 8, 2010
I have a radiobuttonlist control in an AJAX tabpanel, which I would like not to postback whenever the selected item is changed. But I do want to modify the text in a textbox, that is within a separate updatepanel, to be the text of the new selected item.
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Sep 29, 2010
I have a asp.net listbox server control that is connected to a jquery plugin that can handle a client side click event for each of the checkboxes it renders.
Whenever I click on a checkbox the click event gets triggered and I make a call to
__doPostBack("UpdatePanel1", ""); so that i can update the updatepanel and rebind the checkboxlist inside it.
is it possible to do the rebind first, and then update the updatepanel? how do i do that? because now, the rebind happens on the second time i click on the checkbox.
MARKUP:.....
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