AJAX :: ToolkitScriptManager Fails On Updating UpdatePanel?
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:
Controls registered as triggers.I know I can use only one script manager per page,
So I sometimes use app_offline.htm to take an app offline while I upload a new version.However, while I am in the process of uploading larger dll's, I get the yellow error-screen saying the dll could not be loaded.This seems to be out of sync with my expectations of what app_offline.htm does (stops the app entirely), and also provides the users with errors in stead of the nice app_offline.htm I put up.Am I doing something wrong or is this behavior by design?
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.
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.
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.
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).
In code behind, loads of things happends. But the primary important thing is this method which is being called:
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!
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:
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?
I have webpage and a master page.In master page I defined a Label and ContentPlaceHolder :
In my webpage I have an updatepanel and a button that updates the Label.[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)
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); 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?
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.
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.
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.
why this update is failing? The table is connected to OK and there are appropriate values in the parameters to the subroutine, and yet the record in the table remains unchanged. I am using exactly the same code (with different parameters, obviously) to update another table and this continues to work fine.
Public Shared Sub SaveMathsSettingOptions(ByVal ID As Integer, ByVal Auto As String, ByVal Repeats As Integer, ByVal Weekly As String, ByVal ClassSheets As Integer, ByVal HomeSheets As Integer) Dim con As New MySqlConnection(_connectionString) Dim ret As String Dim sql As String sql = "UPDATE centres SET maths_auto = @maths_auto, maths_auto_reps = @maths_auto_reps, maths_weekly = @maths_weekly, maths_class_sheets = @maths_class_sheets, maths_home_sheets = @maths_home_sheets WHERE centreID = @centreID" Dim cmd As New MySqlCommand(sql, con) cmd.Parameters.AddWithValue("@maths_auto", Auto) cmd.Parameters.AddWithValue("@maths_auto_reps", Repeats) cmd.Parameters.AddWithValue("@maths_weekly", Weekly) cmd.Parameters.AddWithValue("@maths_class_sheets", ClassSheets) cmd.Parameters.AddWithValue("@maths_home_sheets", HomeSheets) cmd.Parameters.AddWithValue("@centreID", ID) Try con.Open() Catch myerror As MySqlException 'MessageBox.Show("Error Connecting to Database: " & myerror.Message) ret = myerror.Message con.Close() Finally con.Dispose() End Try End Sub
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();
I have a form which I am using the RoundedCornersExtender, If I am using the ScriptManager control I am getting the following error-Error: AjaxControlToolkit requires ASP.NET Ajax 4.0 scripts. Ensure the correct version of the scripts are referenced. If you are using an ASP.NET ScriptManager, switch to the ToolkitScriptManager in AjaxControlToolkit.dll.I googled it and found that one way to overcome this is to use the ToolkitScripyManager, I replaced the ScriptManager with the ToolkitScriptManager and I dont get the above error anymore. On this same form I am using an UpdatePanel control but from some reason I am not getting a partial render but always a full page render.
Error: $get("id of ToolkitScriptManager_hiddenfield") is null Source File: https://localtest.dk/layouts/site.aspx?_tsm_hiddenfield_=sitesscriptmanager_hiddenfield&_tsm_combinedscripts_=%3b%3bajaxcontroltoolkit%2c+version%3d3.5.40412.0%2c+culture%3dneutral%2c+publickeytoken%3d28f01b0e84b6d53e%3aen-us%3a1547e793-5b7e-48fe-8490-03a375b13a33%3a475a4ef5%3aeffe2a26%3a1d3ed089%3a5546a2b%3a497ef277%3aa43b07eb%3a751cdd15%3adfad98a5%3a3cf12cf1%3ad2e10b12%3af3d989c9 Line: 48
We have a website which uses a lot of AJAX, specifically update panels, modal popup extenders and a few other extenders. Let me give you a really brief overview of the application structure. We have a master page which hosts the ToolkitScriptManager object and then all the other pages in the site are children of this master page. We have specified the CombineScripts property to True and we have also specified the CombineScriptsHandlerUrl property to point to the handler that comes with the sample AJAX website. We have set the enableCompression and enableCaching properties to True in the web.config file.
We are trying to determine application performance on this site and we have found out that on each page request, the CPU utilization goes up to a 50% which is really very strange (as this is only for 1 user). When we change the CombinScripts property to false, the CPU utilization comes down to 3-4% for each request. The problem which we cannot understand is why is the server not able to cache the combined scripts and why does it try to combine the scripts on each request which is taking the utilization to a very high percentage. I have read a lot on the internet that if we use a handler for combining scripts, it will cache the combine scripts on the server and it will be served from the cache but clearly in our case it does not seem to be working.
We have also tried to use ScriptManager instead and include all the script references (using the ScriptReferenceProfiler) we could in the CompositeScript tag but that does the same thing to CPU as the CombineScripts.
Now i have added modal popup. Used ajax 15.1 toolkit. they said it doesnt require ajax script manager now.)
When i use it without ajaxscript manager it doesnt work. But when i use ajaxscript manager it works. But then i cant use scriptmanager (as two instance cant run).If i dont use script manager update panel wont work. Also i dont dont have any master page.