asp.net-ajax

ASP .Net Output Caching and Ajax Control toolkit

I'd like to know if there's a special way of implementing output caching and using a control from the ajax control toolkit. I keep getting a javascript error on a page with output caching and a tab control that says: ajaxtoolkit (my assembly prefix) is undefined. This is the directive I added: <%@ OutputCache Duration="3600" VaryByPara...

Cascading Dropdownlist

Hi, I am using many dropdownlists on my page,and i am migrating my project from .net 2003 to .net 2008.I want to Ajaxify my page and is it logical to use cascading dropdownlists?Can Cascading Dropdownlist give any unexpected problem?By the way,if i use Cascading Dropdownlist,i use pagemethods,not webservices?Do Pagemethods give any p...

JQuery Ui or AjaxControlToolkit ?

I´m building an asp.net app, which technology I should use to get AJAX capabilities? And why ? By now I only need to use a Confirmation button into a gridview, but possible more features will be needed. I can use both, right? Thanks. ...

My trigger doesn't work in updatepanel?

i need to refresh UpdatePanel3'content , but if i click first btnTranslate , it doesn't work, but second click it works? <asp:Button ID="btnTranslate" runat="server" OnClick="btnTranslate_Click" Text=">>" class="buttons" ValidationGroup="ValidForm" /> </td> <td> ...

ajax modal popup extender - control nesting

Hi, I am new to ajax and have been playing with the extenders. I have been making some webforms and using modal popup extenders on them for user feedback and notifications. One question I have that I dont seem to be able to find an answer for is how do I control the way the popups nest? So say I have 3 popups. How do I set some prop...

GridView scroll position/Thickbox

I'm following a example by Matt Berseth on Master Detail using Thickbox where the thickbox will refresh the UpdatePanel of the calling page to reflect changes done of the thickbox. My GridView in the calling page is a fixed header gridview and to maintain the scroll position of the gridview, I use the following code. The problem now is...

AJAX PageRequestManagerParserErrorException error in asp.net page

Hi, I keep getting this error on asp.net page button click...how do i resolve this? Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed. Common causes for this error are when the response is modified by calls to Response.Write(), response filters...

How to implement asynchronous updates for Silverlight app from a SharePoint WebPart?

I'm trying to figure out the best way (read: the easiest) to send updates to a silverlight app from a webpart (that contains the app) asynchronously. The exact time the update would have to be sent is determined by the webpart and it is sent ASAP. Two solutions I've googled (but not fully understood) are: WCF duplex communication/sockets...

Is Absolute positioning a best practice or should I avoid it?

I am watching the ASP.NET learn video on http://www.asp.net/learn/3.5-videos/video-13.aspx and it is showing you can place controls on a page using Absolute positioning. I am just wondering if this is a best practice or should I avoid Absolute positioning? It seems like a nice, easy feature, but there must be some reason why it is not ...

How Can I Keep Certain Controls From Updating In An UpdatePanel?

I have an UpdatePanel with many objects within. How can I prevent some of them from reloading when the panel is refreshed? Is there a tag to make this happen, to sort of "isolate" some elements from the update? ...

Assign a Javascript function to AjaxOptions OnSuccess property raise an error - ASP.NET MVC

Hi, I'm using the Ajax.ActionLink helper to generate a link to delete a record. This is the code: Ajax.ActionLink("Delete Image", "DeleteImage", new { id = item.Id }, new AjaxOptions { HttpMethod = "Delete", OnSuccess = "Test()" } ) I'm assign a Javascript function (Test()) to the OnSuces...

AJAX+ASP.NET

As far i learned ....AJAX is used for partial page refresh (overcoming the flickering effect in the web page) ....Is there any other features in AJAX.... ...

Drag and Drop files into a SharePoint webpart to upload into DocLibrary

Is it possible to create a SharePoint (wss3 or MOSS 2007) webpart, to allow files to be dragged and dropped onto it, which would then upload the files into a predefined document library ? I imagine that this would require some form of client side scripting (Ajax ?), but my knowledge in ajax is a bit sketchy. From my exploration so far...

ASP.NET 3.5 AJAX AutoCompleteExtender - How do I get it filling in all controls?

Preamble: I am using ASP.NET 3.5 and AJAXControlToolkit. I am trying to use the AutoCompleteExtender on a control I am writing which is an Address control. The Address control has a bunch of textboxes such as Address1, Address2, City, Zip, and dropdowns such as State and Country. Scenario: I would like the user to start typing into ...

jQuery vs ASP.NET Ajax

What are the differences between jQuery and ASP.NET Ajax? ...

Best book to learn the insides of ASP.NET AJAX?

What is the best book out there to learn the insides of ASP.NET AJAX? ...

Why does ModalPopupExtender not show through javascript?

I followed several web resources to understand how to show a popup from client side, and I made this code: <asp:ImageButton runat="server" ID="btnOk" ImageUrl="imagens/btnAlterar.gif" OnClientClick="btnOkClick()" /> <asp:LinkButton runat="server" ID="dummyForPopup" Visible="false"/> <ajaxToolKit:ModalPopupExtender runat="server" Behav...

Continuously update an ASP.NET page using AJAX

I have an ASP.NET page that is interacting with a business class. I want to continuously update controls on my page based on user entered values, e.g. update totals. The calculations are embedded in business logic but they're simple enough to reproduce elsewhere. I've thought of three ways to accomplish this: Dynamically update the pag...

Handle client events in Asp.net AJAX

I have an Asp.net AJAX control and in client control class I want to handle the onFocus event for some textboxes in my control. I would like to have only one handler for all the textboxes, however in the handler I don't know how to get the source element that caused the focus event. In my initialize function I will have the following c...

How efficient is Microsoft's ASP.NET Ajax ?

Are there any studies out there about efficiency of Microsoft's ASP.NET Ajax? ...