AJAX :: WebForm_DoCallback Function Generated From The Page?
Jan 3, 2011
I'm having a strange problem with the WebForm_DoCallback function,generated from the Page.ClientScript.GetCallbackEventReference method.I recently midrated an ESRI web application from a previous version to the new 10.0 version,and so had to install it in a different server (Windows Server 2008) and had to update allot of web.config dll references. Everything worked fine, except for the this specific callback function,'WebForm_DoCallback'.
Now it doesn't do any callback at all,and the strange this is,that when i try to print it out in javascript with the alert method,instead of appearing an alert box with all of the code of the 'WebForm_DoCallback' function,as is is declared in the WebForms.js file inside the System.Web.dll(I used reflector.net for that),the only thing that gets printed is:
function () {
return b.apply(a, arguments);
}
I suspect the function is being overriden by another scriptresource.axd, but i'm not sure.I'm starting to loose it with this one.Everything works the same,except for this one.Maybe the problem is in the web.config file,but i can't determine where.
I have a dynamically generated image placed inside an update panel. The image is generated with the Generated Image control (see here for more:
[URL]. This is basically a specialised httphandler linked to a normal asp:image, where the image src is generated dynamically. In my case, I use some GDI+ to dynamically generate the image, based on values from a database query.
The problem I have is that the image does not update when the update panel updates. The image does, however, update if I manually reload/refresh the page (i.e., hit F5). Why is is that some code fires during an update panel update, and not other code? And, more importantly, what can I do to make sure the image generation code does fire during the updatepanel update?
i have developed a simple form which have only one button and when user click on button then just server datetime will be shown by icallback. few days back it was working but now i saw it is stop working. i am running the program from VS2005 IDE. i just can not understand why it is not working. i am getting two error and the errors are 1) WebForm_DoCallback is not defined 2) WebForm_InitCallback is not defined please help me how to fix this error. here i am giving my code html ----- <%@ Page Language="C#" AutoEventWireup="true" CodeFile="BasicCallBack.aspx.cs" Inherits="BasicCallBack" %>
For some reason when I look at the controls in the ListViewDataItem it has the ClientID:
ctl00_cphContentMiddle_lv_Questions_ctrl0_ctl00
Why would it be changing Numberofacres to ctl00? Is there any way to work around this?
UPDATE:
Just to clarify, I am databinding my ListView in the Page_Init event. I then create the controls in the ItemBound event for my ListView. But based on what @Womp and MSDN are saying the controls won't actually be created until after the Load event (which is after the Page_Init event) and therefore are not in ViewState? Does this sound correct?
If so am I just SOL when it comes to retrieving the values in my dynamic controls from my OnClick event?
UPDATE 2:
So i changed the code i had in my Page_Init event from:
I am trying to call a web service function within my own ASP.net (code behind) using AJAX on the page.
Once i push the button to execute the JS/AJAX/codebehind - I got an error.
POST http://************/admin/Admin.aspx/getDBInformation 500 (Internal Server Error)
This is my code below that I am currently using:
Code: <WebMethod> _ Public Shared Function getDBInformation() As String loadDBData() Return JsonConvert.SerializeObject(dbInfo, System.Xml.Formatting.Indented) End Function End Class
In the content page, I have an ajax accordion pane with couple of panes. Within each of those panes there is 1 user control. Initially all the panes except the first one (AccordionPaneMain) is enabled. The first pane user control contains a form view . In formview itemcommand I am doing some processing and then was trying to enable rest of the panes by calling the function showPanes in the main page by using invoker method. My problem is, the method (showPanes) is getting executed but the panes are not enabled.
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.
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.
I currently have an accordion and I want each accordion to populate only if the user clicks on that header( partial accordion rendering ). How are people doing that nowadays? I know I can do it with updatepanels but have read bad things about update panels. Also just as an FYI each accrordion panel content pane will look the same ..It will have a thumbnail of the product..several checkboxes and a download button . The values or names of the checkboxes need to be generated so that I can then grab them and lookup those values in an xml file to find the location and then zip those files up and have user download it..I actually have all this working with all the content of the accordion being generated on server at load time but being that I'm trying to learn asp.net I figured I would give partial rendering a shot..I like the idea of only loading content for that accordion panel if user is interested in in. I also have a webservice running which displays hello world in the accordion panel content that trigger the network callback..That's fine but then I'm thinking ok now how do I build the checkboxes and html that I really need to send back and is this web service the correct solution. Another thought is using javascript to create elements as the data is retrieived from the web service..I'm just trying to do it the right way[URL]
I use ASP.NET C# with AJAX Professional (http://www.ajaxpro.info)1) I have a div container with Panel control, Panel control should hold DropDownList that will be generated in codebehind function:
[Code]....
2) I have a JS script function "getDDL" that sends data to codebehind function and then it receives response with generated Panel and DropDownList controls:[Code].... 3) Codebehind function "GetDDL" must return generated DropDownList inside the Panel control:
[Code]....
So the problem is when I try to get the generated Panel and DropDownList through the JS response I receive only the text "System.Web.UI.Design.Panel" or something like that, tried to generate only DropDownList - similar text shows up "System.Web.UI.Design.DropDownList".But when I call a codebehind function to get these two controls I see them without any problems. Why I can't get them through JS? I do everything fine, debugged million times and didn't see any problems, I can't figure out what's wrong with JavaScript?
Is it possible to populate all generated form elements using AutoCompleteExtender? Now i have one textbox called Userid when i put some number it is listing the list of IDs from the database using AutoCompleteExtender. I need to make, if selected ID correct, other Form Field should fill with relevant data. Currently i am filling it with TextChange event for the UserID field, but it is reloading the whole page. So Is there anyway can be filled all Form Elements using AutoCompleteExtender?
I'm coding an ASP.NET page, with VB code behind. When the user clicks a button on the page, I send them an email with information and instructions. Rather than sending a plain text email, I send a nice, pretty, HTML-formatted one. Right now, I'm doing this in a way that I KNOW will be difficult to maintain. That is, I'm straight up writing out all of the html. i.e.
and so on. Is there a way to create an aspx page (with vb code behind), and send the html of that page in the body of the email? The information is dynamic, so this pseudo-page would need logic in the on-load event to format the html correctly.
I've got problem with generating ajax anchors. I'm using simple
Ajax.ActionLink("test", "Test", new AjaxOptions { UpdateTargetId="test", HttpMethod="GET" }) and the generated markup is: <a data-ajax="true" data-ajax-method="GET" data-ajax-mode="replace" data-ajax-update="#test" href="/Home/Test">test</a> which, obviously lacks the onclick="Sys.Mvc.AsyncHyperlink.handleClick(...)" attribute.
The AsyncFileUpload control turns green, indicating that the attachment was successfully uploaded, but the designated method for handling the server side UploadedComplete event is never executed.
I have a ListView (in an UpdatePanel) connected to a LinqDataSource. When the page loads and/or I navigate through Postback, the code snippet (below) will display the following output:
However, when I use a few DropDownLists (also in the UpdatePanel) to filter the results (reset the DataSource to a Linq query and call DataBind), the same Contact is displayed like this:
[email.gif] [email.gif] www.adomain.com
[Code]....
If the parameter is a URL, the FormatEContact method will return:
[Code]....
So, after spending some quality time with Bing and Google, I've learned that the above js code is treated as just text and not evaluated. Therefore, the most often recommended solution is to eval() it. Unfortunately, I can't figure out exactly how, when or where to call eval().
I developed a basic web page in MVC 2 for learning the framework, and I am stuck in this situation:
I have 3 classes: Client - Product - New. And for all need to display a modal popup to create/edit action. For display the modal i used JQuery and jqModal plug-in.
I created the controllers for all objects, the views for Index action, and Delete action. For the Create/Edit Action I created a partial view named ModalBox. Inside this partial view, I have an Ajax.BeginForm, and it calls another partial, that represent the form of the objects.
This works very fine, ... for the project object! in FireFox 3.6, for others object's the form tag is missing...
I have Membership, Profile and Role providers setup for my .NET MVC website. I would like to say: this Role has access to that Page. How do I 'inject' this code to the RoleProvider? Or do I have to override it somehow? Any leads?(Roles are stored in the default ASP.NET SqlRoleProvider, Pages are stored in a seperate SQL database).
I currently have an asp.net page which a loggd in user goes to and theres a bunch of dynamically generated links to zip files that he or she owns and can downloads.Currently they click download and I have no way of knowing if it completes succesfully etc so can't log it. I do log the attempt.Is there are good download manager or solution I can use so they will have progress bars on the site, they can queue multiple ones up and most importantly I can track failed and successful downloads.
I have following code and Javascript in my aspx page and my aspx page has a master page:-
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server"> <script language = "javascript" type = "text/javascript"> function GenerateNew() { var tblRow = document.getElementById("ctl00_ContentPlaceHolder1_tblRow"); var tr = document.createElement("tr"); var td = document.createElement("td"); var txt = document.createElement("input"); var theValue = document.getElementById("theValue"); theValue.value = parseInt(theValue.value) + 1; i = theValue.value; tr.setAttribute("id", "tr" + i); td.appendChild(txt); tr.appendChild(td); tblRow.appendChild(tr); } function RemoveRow() { var tblRow = document.getElementById("ctl00_ContentPlaceHolder1_tblRow"); var Val = document.getElementById("theValue"); for (var i = 1; i <= Val.value; i++) { var RowToBeDeleted = document.getElementById('tr' + i); if (RowToBeDeleted != null) { tblRow.removeChild(RowToBeDeleted); } } } </script> <asp:Table ID="tblRow" runat="server"> <asp:TableRow> <asp:TableCell> </asp:TableCell> </asp:TableRow> </asp:Table> <input type = "hidden" id = "theValue" value = "0" /> <input id="Button2" type="button" value="Insert Record From JS" onclick = "GenerateNew()" /> <input id="Button3" type="button" value="Remove From JS" onclick = "RemoveRow()" /> </asp:Content>
This JS code generates a dynamic textbox and adds it to the existing table <asp:Table>. It works perfectly when I run it locally, however it doesn't work when I put it on the server.
This issue is only with IE, other browsers like Firefox and Chrome works perfectly fine locally and at server but IE works only locally not at the server. I am using IE 8 (OR 8.0.6001.18702 to be precise) and IIS 5.1.
I open a pop up page(child page) by using jquery(jquery.colorbox.js) in asp.net application. now when I click on search button I want to close the pop up page(child page) and refresh the UpdatePanel1 by using search parameters. for above I need to execute server side function in parent page. code to close pop up:
child.aspx: <script> function closePopup() { [Code]....
