Dynamic AJAX Control Toolkit – Calendar Extender

February 6, 2008 • Damien White

Often times, I have encounter questions regarding dynamically creating controls, specifically ones related to the ASP.NET AJAX Control Toolkit. Today, I was working with an application where I needed to create a dynamic  CalendarExtender and thought I would post the results.

Here is a simple example of how to create a dynamic CalendarExtender from code-behind:

// Create a textbox to hold the date
TextBox dateValue = new TextBox();
dateValue.ID = "dateValue";

// Create the calendar extender
AjaxControlToolkit.CalendarExtender ajaxCalendar =
    new AjaxControlToolkit.CalendarExtender();
ajaxCalendar.ID = "ajaxCalendar";
ajaxCalendar.Format = "MM/dd/yyyy";
ajaxCalendar.TargetControlID = dateValue.ID;


In the ASPX, I have just a simple PlaceHolder where I append the dynamically created controls:

<asp:placeholder id="placeHolder1" runat="server">

Finally, here’s the end result:


Posted in ajax, ajax control toolkit, asp.net, c# and tagged with ASP.NET, ASP.NET AJAX

Damien White

I am a software architect with over 16 years of experience. I simply love coding! I have a driving passion for computers and software development, and a thirst for knowledge that just cannot be quenched. I'm happy to share what I know in my quest to learn as much as possible. I focus most of my time on web development using Ruby on Rails, Ember.js, and ASP.NET MVC.

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