Web Forms :: Get Generated Controls Through AJAX Response?
Aug 15, 2010
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?
i have a data grid view that i roll over and generate a tab delimited file out of using the reponse object in ASP. to wit...
Code: protected void CreateTabFile() { var d = DateTime.Today.ToShortDateString(); d = d.Replace("/", ""); var filename = "BankRecon"; filename += d; Response.Clear(); Response.Buffer = true
[code]....
how do i set it up to save the file to the datastore folder i have on the site itself, i want to automate an email and send this as an attachment, the email part works, but if its not in a consistent place i cant attach it. its an asp.net webforms project not a website project.
Even though I have buffer set to false,no text is displayed.I have tried adding a response.flush,with and without changing the buffer value.What exactly is wrong?I've also tried it with and without the label(i.e. with or without just Response.Write)
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'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 web form which does a full page postback when a button is clicked. This is caused by an update panel trigger. Client-Side: When the button is clicked, an animation gif is displayed Server-Side: When the button is clicked, the server side event changes the content type to excel, binary writes out excel content (byte array) and does Response.Flush() and Response.End() Client-Side: User is asked to either open or download the excel file. Animation gif is still displayed.
Question: How can I detect client side (using jQuery or Ajax) that the response has been completed. There is no page postback because the code-behind has cut off the response by using Response.End().
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 displaying a table based on query results, and each record has a dynamically generated dropdownlist and submit button (and other controls, but this is simplified). That part works fine, but how do I reference the controls in a function? Here is the code I've tried. Create the controls:
[Code]....
Reference the control values (hopefully):
[Code]....
The function SubmitAction_Click fires when I click the Post button, so that part works. I just can't figure out how to reference the selected value of the dropdownlist. You can see that I'm explicitly giving the DDL a unique ID (DS_RecordID). I'm guessing I have to use FindControl to reference it, but I don't know how to format the code.
I am generating an html flow into Update Panels in a content ASPX page (VB.Net 2008 Professional w/ SP1). These include EDIT anchor tags that call a javascript function which calls __doPostBack(target, args); so I can interact with the code behind. This all works fine except on some of the postbacks the connection with the browser just seems to get closed prematurely and suddenly the webpage displays a directory listing. When debugging it, it only happens sometimes, at different places for the E and D options below but not for the V or AddPost or AddArticle. I am just stepping through E or D and suddenly the web page show a directory listing. (What is that? Is the connection crashing? Is the page suddenly redirecting to the base directory because it crashed?)
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.
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?
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().
The server produce an error that says that I must establish the property ID to itemPlaceHolder in a control of the ListView.... but I have done this !!!
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.
Just to be sure.. ive added a GridView and i was wondering if it was normal that it is generated as a floating element? Because, i had to use a clear: both after in order to write on the next line.. cause the text was displayed at the right of the GridView even with a <br>.
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.
Two questions. First, is HeaderStyle-Width a preferred/best way to manage column width in a grid view? And second, how do I suppress the genration of the the additional code?
Tried several different ways to do this but am just not seeing it. Proably a quick solution for someone more skilled than me.
I have a gridview generated from a datatable. One of the columns is "client name" whose data is generated from a class.
I added a link button for the column header that fires a sub that should sort the datagrid, but is not.
Here is the code I have so far that creates the gridview which works fine:
Private Sub PopulateCaseListGrid() 'Kill the existing DataSource, in case of a page reload gvCaseList.DataSource = Nothing 'Create a datatable with whatever column you want to use
I have a grid and on each row of grid i generate a radiobuttonlist with 2 items dynamically in rowdatabound. On the save button event i want to access the data of the row and save the data in DB with which ever radio button is selected.I tried different things but all in vain. I tried to use hidden field so that whenever any radio button is selected in a row then in javascript i will update the hidden field but user can select multiple rows so this is not a good solution.
Here is my code of dynamic radio button list generation in rowdatabound event.
I am currently working on a module in which I am creating an auto generated column gridview, and I have set the Auto generate edit button field to true. What happens now when I click the edit button The primary key field is turned in to edit mode which I want to restrict from being updated.
To restrict the same I have hard coded a template field which holds that column, But as I have set the AutoGenerateColumns Property to true the gridview automatically creates a duplicate field for holding the primary key column. For which I want to delete that particular column.
My Designer Code is:-
[Code]....
in page load I am binding the grid view.
Even I have tried to hide that column doesn't make any difference for me.
I have a gridview which has autogenerate Columns Property "TRUE", and i'm dynamically binding this gridview with columns with sql database dataset. there is no data in sql but i am successful in showing blank gridview on form, now i want textboxes in gridview attached with each column, so i wrote code in RowDataBound which generates textbox automatically and assigns ID to each textbox, nw i want to insert that data from textbox to database but i'm not getting text which is entered in those textboxes, as i am accessing that textboxes using findcontrol and passing the id like gridview1_ctl03_text0. but i''m not getting any value from textbox?
In short i want to access auto generated textbox (with out any id predefined ) values from footer of gridview
