Top "Asp.net-ajax" questions

A set of extensions to ASP.

Serialize Entity Framework objects into JSON

It seems that serializing Entity Framework objects into JSON is not possible using either WCF's native DataContractJsonSerializer or ASP.NET's …

wcf json entity-framework asp.net-ajax
How do I make a Textbox Postback on KeyUp?

I have a Textbox that changes the content of a dropdown in the OnTextChanged event. This event seems to fire …

asp.net ajax asp.net-ajax updatepanel postback
Microsoft JScript runtime error: 'Sys' is undefined

I have a page with the following code on it: <script type="text/javascript" language="javascript"> /// <reference …

asp.net javascript asp.net-ajax
Pass data from a ASP.NET page to ASCX user controls loaded dynamically

I'm developing an ASP.NET application with C# and Ajax. I have a page that holds user controls loaded dynamically. …

c# asp.net-ajax communication ascx
ASP.NET AJAX Control Toolkit: Show a ModalPopup and then do PostBack

I want to show a modal popup when a user click on an asp button. The user must select an …

c# asp.net-ajax ajaxcontroltoolkit modal-popup
Sys.WebForms.PageRequestManagerServerErrorException 12031

I'm occasionaly getting the following popup from an AJAX.NET application Sys.WebForms.PageRequestManagerServerErrorException: An Unknown error occurred while processing …

asp.net asp.net-ajax exception-handling
Using GridView inside UpdatePanel

I have an Updatepanel and Gridview inside it. <asp:UpdatePanel ID="uplPanel" UpdateMode="Conditional" runat="server" OnLoad="uplPanel_Load"&…

c# asp.net asp.net-ajax updatepanel
Deserializing JSON objects as List<type> not working with asmx service

I am having trouble deserializing my JSON string. I have a class of type person with public properties for sequence …

asp.net json asp.net-ajax serialization
Setting active tab in ASP.NET Ajax TabContainer causes entire container to disappear

I have an ASP.NET page that uses the ASP.NET Ajax Control Toolkit TabContainer. In the Page_Load event, …

asp.net asp.net-ajax ajaxcontroltoolkit tabcontainer
jquery datepicker ms ajax updatepanel doesn't work after post back

So I did some reading of the related questions and had some interesting stuff but did not find my answer, …

c# jquery asp.net-ajax updatepanel