ASP.NET AJAX Forum Posts

dispalaying alert box while using with update panel

ASP.NET AJAX Discussion and Suggestions — Wed, 10 Feb 2010 05:40:39 GMT

Hi, I have used Response.Write("<script language='javascript'>alert('Enter correct Email and Password');</script>"); } code in code behind for displaying an alert box.But this code is not work when i have added an update panel.I have also tried usin registerclientscript.but same .How can i display an alert box when using an update panel? Read More......(read more)

Getting Microsoft JScript runtime error

ASP.NET AJAX Discussion and Suggestions — Wed, 10 Feb 2010 05:01:35 GMT

I used the following function in my ASP.Net Project (which contains ajax controls ) Protected Sub btnExport_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnExport.Click 'ExportToExcel() Response.Clear() Response.AddHeader("content-disposition", "attachment;filename=FileName.xls") Response.Charset = "" ' If you want the option to open the Excel file without saving then ' comment out the line below Response.Cache.SetCacheability(HttpCacheability.NoCache) Response.ContentType = "application/vnd.xls" Dim stringWrite As New System.IO.StringWriter() Dim htmlWrite As System.Web.UI.HtmlTextWriter = New HtmlTextWriter(stringWrite) gvDisplay.RenderControl(htmlWrite) Response.Write(stringWrite...(read more)

Failed to create designer Systems.web.ui.scriptmanager version 1.0.61025

ASP.NET AJAX Discussion and Suggestions — Tue, 09 Feb 2010 21:39:46 GMT

Hi, I migrated a project from vs 2005 to vs 2008, in the vs 2008 project we will continue to use framework 2.0 only so i didnt migrated to 3.5 When I open a page in 2008 I got this problem in the scriptmanager, can you please help me to solve it? I found this on the web.config <add assembly="System.Web.Extensions, Version=1.0.61025.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/> Read More......(read more)

ScriptManager.RegisterStartupScript, window.open

ASP.NET AJAX Discussion and Suggestions — Tue, 09 Feb 2010 20:19:50 GMT

In my login page, after login, open default.aspx page with ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "_opener", "window.open('Default.aspx');", true); but in default.aspx. on button click event ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "_opener", "window.open('Default2.aspx');", true); not running. How to run window.open from my file which is opened with ScriptManager.RegisterStartupScript(this.Page, this.GetType(), "_opener", "window.open('Default.aspx');", true); Thank you, Read More......(read more)

aps.net - web app - c# - jquery - Call A method inside code behind using jquery Problem witht static

ASP.NET AJAX Networking and Web Services — Tue, 09 Feb 2010 17:59:39 GMT

hi my dear friends My Pages on vs 2008 are Base on Master And Content Pages And In Content Pages I have multiviews And inside Multiviews I have RadComboBoxes. two of my radcomboboxes are parent and child like country and city dropdowns... therefore in codebehind i put some codes in the OnSelectedIndexChange event of Parent RadComboBox for filling it's child - I used a hidden field for country id and sql datasources(stored Procedures)... meantime parent and child combo boxes are in an update panel for doing this job i set the autopostback property of parent combobox to true... but i do not want that autopostback=ture because of some focus problems that i coded with jquery so i want convert OnSelectedIndexChange event in codebehind to a method...(read more)

Can't select anything from auto suggest with modal popup

ASP.NET AJAX Discussion and Suggestions — Tue, 09 Feb 2010 16:40:28 GMT

The modal popup works fine, but whenever I add the background-color to #000, I'm not able to select anything from the autosuggest textbox. Any ideas? I've tried changing the z-index's but no luck so far. < asp : Button ID ="btnCreateNewMailbox" runat ="server" Text ="Create New" /> < cc1 : ModalPopupExtender ID ="mpebtnCreate_ModalPopupExtender" BackgroundCssClass ="modalBackground" runat ="server" TargetControlID ="btnCreateNewMailbox" PopupControlID ="TestPanel1" PopupDragHandleControlID ="TestPanel1"> </ cc1 : ModalPopupExtender > < asp : Panel ID ="TestPanel1" runat ="server" Width ="400px">...(read more)

How to dynamically add ScriptManager to a WebUserControl

ASP.NET AJAX UI — Tue, 09 Feb 2010 14:12:15 GMT

Hello I had this problem: I created a WebUserControl that used som Ajax stuff - hence it needed a ScriptManager. The problem was that I couldn't add it to the WebUserControls html code (the .ascx file) since the WebUserControl sometimes was placed into a parent page that already had a ScriptManager, and I couldn't add a ScriptManagerProxy since the parent page sometimes didn't had a ScriptManager. Alot of people suggested to just use a ScriptManager on the MasterPage, but this fails if: one doesn't use a MasterPage or one uses iFrames etc. that uses stand alone aspx pages, like Thickbox might do... Here's the solution: in the WebUserControls code behind (.cs file), put this: protected override void OnInit(EventArgs e) { if...(read more)

Tabcontainer set_enabled issue

ASP.NET AJAX UI — Tue, 09 Feb 2010 04:08:30 GMT

I have a tabcontainer with a bunch of tabs... When I disable a tab and then re-enable it using set_enabled all the fields on the tabs remain disabled. I can't find a solution anywhere. Any thoughts on what I'm doing wrong? Seems pretty boilerplate code to me... In case it helps here's the js code I'm using to do the work. function DisableEnableTab(boolVal, tabIndex) { var tab = $find('TabContainer1'); tab.get_tabs()[tabIndex].set_enabled(boolVal); } Thanks in advance, Chris Edit: The last post in this thread sums it up: http://forums.asp.net/p/1121737/1983604.aspx#1983604 Read More......(read more)

Failed to load View state poblem while calling the panel in ajax popup

ASP.NET AJAX Discussion and Suggestions — Mon, 08 Feb 2010 23:24:33 GMT

Hi, I am placing dynamically created web user control in a panel and calling them using ajax popup extender control. It is loading properly and when I to post from the popup, it give view state error. "Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. " I tried disabling viewstate to false for all the controls and I am getting the same error. Please advise, Thanking you all in anticipation. KSR Read More......(read more)

Async download of images using ASP.NET AJAX web service - is it possible ?

ASP.NET AJAX Discussion and Suggestions — Mon, 08 Feb 2010 21:50:32 GMT

I'm new to ASP.NET AJAX, and am confused about downloading images from an ASP.NET AJAX (JSON) web service to a Javascript client... I understand how to read a binary image file and return it as a byte array via an HTTPhandler, and how to assign the returned array to the src property of an <img> tag. That works fine. But I've read that an ASP.NET AJAX (JSON) web service can't be used. And all the examples I've found show to use an HTTPhandler. I don't understand why. If an HTTPhandler can return a byte array (and assign it to a property of an HTML tag), then why can't a web service? DT Read More......(read more)

All Controls Firing An Event on First Page Postback

ASP.NET AJAX UI — Mon, 08 Feb 2010 21:32:03 GMT

Hi, I have a web application that shows a page containing between 6 and 20 UpdatePanels, contained with Custom Web (.ascx) Controls. You can see an example of such a page here: http://www.elnexus.com/products.aspx?line_id=15514 The problem I'm getting is that when the user FIRST clicks any of the radio-buttons on any of the controls in the page, ALL the radio buttons that have an active selection ALSO fire an rb_CheckChanged event (see application log below). On subsequent radio-button clicks, only that RB fires the event (as expected). This behaviour is having a dramatic impact on performance. The page loads quickly, and a "normal" RB click provides an AJAX update correctly within 1 second. The problematic first RB click, however...(read more)

Thread was being aborted - Update panel triggered by timer

ASP.NET AJAX Discussion and Suggestions — Mon, 08 Feb 2010 20:18:02 GMT

Hi, I have an ASPX page with several update panels. They all have their UpdateMode="Conditional". Some panels are refreshed when the user clicks a button and other are refreshed regularly, with a timer. The panel refreshed with a timer launches a database query and many validations on the data. Then display the result in a panel when errors have been found. That all works fine except when the validation has to delete files on the disk. (.txt, .jpg, etc it depends). In that case, after the validation is made, I am always kicked out of my website because of the error (Thread was being aborted). So I loose all my session variables which means I am not logged off. Anybody had that kind of problem ? Is it normal that deleting files AND...(read more)

AJAX Application: full business application example

ASP.NET AJAX Discussion and Suggestions — Mon, 08 Feb 2010 16:23:47 GMT

Hi there, I'd like to know if there exists any sample application or starter kit of a asp.net 3.5 ajax based application with all its layers: presentation, business, data acces, etc. Thanks, JB Read More......(read more)

web page not submitted when checking PostBack

ASP.NET AJAX Discussion and Suggestions — Mon, 08 Feb 2010 16:23:05 GMT

Hi, in aspx file i have two simple controls ................. <div> <asp:ScriptManager ID="sm1" runat="server"> </asp:ScriptManager> <asp:UpdatePanel ID="up" runat="server"> <ContentTemplate> <asp:Label ID="l1" runat="server" Text="label1"></asp:Label> <br /> <br /> <asp:Button ID="b1" runat="server" Text="click this button to see change in the label" OnClick="onclick1" /> </ContentTemplate> </asp:UpdatePanel> </div> ..... Then in Code behind file i wrote this ...... protected void Page_Load(object sender, EventArgs e) { if (Page.IsPostBack) { Response.Write...(read more)

Following database changes on client side

ASP.NET AJAX Discussion and Suggestions — Mon, 08 Feb 2010 13:32:28 GMT

Hello all. I'm building a web application for auction, I want to create such a mechanism,that can follow if there is a new row in some table in my database,if new row is added,it makes my aspx page to refreshed itself. For instance, I am in the midle of an auction and somebody has just given new offer for product, the page is being refreshed(postback),so now I can see my grid with all previous offers including the new offer,that has just been accepted. How can I create such thing? I was thinking about update panel and XMLHTTPRequest,but I don't know how to buid something that could follow database changes constantly. Does anybody have an idia?? Regards, Read More......(read more)