Running an Ajax ModalPopup from code behind
The ajax control toolkit contains a control called ModalPopupExtender. This extender allows you to create a dialog-like interface for webpages.When you use it like it is meant to use you would set a TargetControlID and a PopupControlID. The first is the control that will trigger the popup to show while the latter is the control that will be shown. That’s already nice, but what I needed recently was to show the result of a certain query in such a popup. This means that when I click the control that is pointed as TargetControl it would do a postback, execute some serverside code and then show that result in the browser. This is logical you might think but the problem is that when you click the control assigned to the extender as TargetControl you’ll see the popup immediately and only then the postback occurs.Okay how to solve this? Well add an additional linkbutton for example and make sure it is visible but has not text. You can then set the TargetControlID to this “no-text” linkbutton. Since there is no text, you can’t see it and since you can’t see it the user won’t click it. Nifty 
Next you can have a second linkbutton the performs a callback to the server and executes some serverside code. If you put this linklabel in an asp.net ajax updatepanel you won’t notice the callback and you can use the ProgressIndicator functionality in asp.net ajax.At serverside you can perform some code execution and for example set a Label’s text proeprty to the result. Finally you can access the ModalPopupExtender and call the Show method that’s available this will cause the popup to appear.I really like this way of working because it allows for a nice userinterface experience and interaction with user.
*** UPDATE: I am sorry for all of you that wanted the sample code, with moving to this blog I lost it when my old blog went offline. I cannot provide you with the code anymore ***
aswin said,
August 23, 2007 at 5:02 am
Hi. Can i get tat example? pls send the link to my email
Courtney said,
December 13, 2007 at 3:36 pm
Thank you!! I was able to get this to work and it was exactly what I needed.
Shawn said,
January 31, 2008 at 7:54 pm
Thanks, this simple fixed saved me allot of time.
SriDevi said,
February 12, 2008 at 10:19 am
Please give me an idea.. or send me the link…
1) How to get the modal popup window by clicking the link in the gridview from code behind…. also to get the data from the popup window after updated…
2)Inside the popup control, the button click event was’nt handled while clicking within the gridview.
Thanks in advance….
Márcio Fábio said,
February 17, 2008 at 9:01 pm
Hello.
Please send the link to my email.
Mohan said,
March 12, 2008 at 10:51 am
can you send me the code for this example
Doyle said,
March 25, 2008 at 9:24 am
Very good comment, it help a lot of AJAX project
Marco said,
March 31, 2008 at 11:53 am
Can you send me the code too, please? Thank you.
Tina said,
April 8, 2008 at 6:04 am
Can u please please send this code to me as well. Thanks So much.
Chris said,
April 21, 2008 at 3:35 pm
Can you please send me the code so that I can take a look too. Thanks!
Javier Fonseca said,
April 25, 2008 at 4:01 pm
You should set the Enabled property of the *no-text* LinkButton to “False”. Otherwise you could accidently access it pressing the Tab key
Eric Shandil said,
May 8, 2008 at 8:43 pm
Great article, this is exactly what I was looking for. Thank you so much.
eric
Brandon said,
May 28, 2008 at 2:40 pm
Can you please send me an example to my email. It would be much appreciated.
suddenelfilio said,
May 28, 2008 at 2:46 pm
I would love to send you all the code but this is an old post and to be honest I do not have the code anymore.
Kyran said,
July 1, 2008 at 11:44 pm
Hello;
Would you be kind enough to send me an example of how to do this? Sounds like it might be exactly what i’ve been looking for…. in which case thank you!!
farheen Dalal said,
September 4, 2008 at 9:46 am
Hi. Can i get tat example? pls send the link to my email…
Thnx in Advance.
ErikIce said,
September 10, 2008 at 9:28 am
Hi, can I have an example?
It’s exactly what I need.
Thanks a lot
Edward said,
September 10, 2008 at 3:48 pm
Would you be kind enough to send me an example of how to do this? Sounds like a great solution. Thanks for the assistance.
sam said,
September 17, 2008 at 2:15 pm
hey, this sounds fantastic. could you please send me an example as well? i would send cake and coffee in exchange, but its kinda difficult somehow.. many thanks in advance
gabe said,
November 13, 2008 at 10:42 pm
I would love to be able to see this code as well…. I am having a difficult time understanding without a visual aid. thanks!
beeker said,
November 14, 2008 at 6:00 pm
Can i get a email on this topic as well? Thanks!
Binu said,
November 15, 2008 at 11:46 am
Nice thinking But I am not able to understand how to do this exactly.And when and how i have to call the SHOW Method
Please send me by mail.
its very urgent now for me .
because this is what I was searching for last 2 days.
thanks…
LijoD said,
November 17, 2008 at 3:41 am
Can you please send me the code so that I can take a look too. Thanks!
Insatiable said,
December 4, 2008 at 4:01 am
Can you send me the code example too?
Ratheesh said,
December 15, 2008 at 5:34 am
Please send that solution to me….
rethnath@gmail.com
NecroKorn said,
December 21, 2008 at 4:45 pm
Great article, this sounds fantastic, Can you please send me the code so that I can take a look too. Thanks!