[How Do I:] Make Client-Side Network Callbacks with ASP.NET AJAX?http://asp.netTue, 07 Oct 2008 19:51:52 GMTumbracoComments for [How Do I:] Make Client-Side Network Callbacks with ASP.NET AJAX?enComment Posted by akourkoumelishttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxFri, 07 Mar 2008 17:32:56 GMT00000000-0000-0000-00000000431Hi,

Can I invoke server side calls from javascript without invoking a web service?

]]>Comment Posted by JoeStagnerhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxSat, 15 Mar 2008 12:48:51 GMT00000000-0000-0000-00000000432Sure - you can use GET and OST directly.

]]>Comment Posted by ShijuKadamalahttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxThu, 27 Mar 2008 10:35:43 GMT00000000-0000-0000-00000000433When you are calling web service class from JavaScript, remember to call with full qualifier for the web service class.

]]>Comment Posted by darthocellarishttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxFri, 28 Mar 2008 12:12:48 GMT00000000-0000-0000-00000000434my javascript is weak so correct me here. You misspelled 'return' in the script and the popup still shows. There is an error on the page still though. How is this possible? I would have expected no popup.

]]>Comment Posted by eunicephttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxMon, 07 Apr 2008 00:42:07 GMT00000000-0000-0000-00000000435darthocellaris: I had the same problem encountering javascript error stating 'SimpleService' is undefined.  I figured out that a namespace is needed.  Here, the namespace I used is AJAXEnabledWebSite1.  

ret = AJAXEnabledWebSite1.SimpleService.SayHello(document.getElem entById('Text1').value, OnComplete, OnTimeOut, OnError);

]]>Comment Posted by JoeStagnerhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxMon, 14 Apr 2008 20:55:34 GMT00000000-0000-0000-00000000436darth.... browsers handle JS errors differently but often try to keep going, especially if you have client errors turned off in the browser.

]]>Comment Posted by anat2403http://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxSun, 20 Apr 2008 13:35:55 GMT00000000-0000-0000-00000000437Suppose the Name entered is 'Anat' and I want to keep this value in a session field or somewhwere in the server. How can I use the web service to get this value?

Thankyou

Anat

]]>Comment Posted by DarkKnight671http://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxWed, 23 Apr 2008 07:50:35 GMT00000000-0000-0000-00000000438Anat raises an interesting point - is there a way to sync server-controls with what gets changed as a result of the callback? I.E. - if we change a list of values (say, a dropdownlist), viewstate is not updated on the server and any selections may no longer be valid...

]]>Comment Posted by gladston_rajhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxTue, 27 May 2008 07:54:42 GMT00000000-0000-0000-00000000439When i try to return a data table from the web service it is throwing a error "A circular reference has been detected while serializing an object of type 'System.Reflection.Module'

", why this error is comming and how can i over come this error

]]>Comment Posted by JoeStagnerhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxTue, 27 May 2008 13:42:20 GMT00000000-0000-0000-00000000440You can't automagically pass all server side objects to your client side code.

Try manually serializing your Table to JSON or POX and then you can process the data sumply in your clint side Javascript code.

]]>Comment Posted by hasan_houshmandhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxSun, 01 Jun 2008 11:29:22 GMT00000000-0000-0000-00000000441Hi Sir!

I'm from Iran.

As you see my name is hasan.

These Videos are really helpfull.

Special Thanks to you.

But Ineed Your Help because really i want to learn AJAX.

When i need your help, Do you help me?

]]>Comment Posted by ITSASPDOTNEThttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxTue, 24 Jun 2008 21:34:37 GMT00000000-0000-0000-00000000442JoeStagner, you have mentioned that we have to use GET and POST directly, to invoke invoke server side calls from javascript without invoking a web service.

Do you have any sample for this? or can you please let me know in detail how can I achieve this?

I would like to use it.

]]>Comment Posted by Sarkiehttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxTue, 01 Jul 2008 05:53:05 GMT00000000-0000-0000-00000000444In 3.5 or 2008 it shows for the

   var ret = SimpleService.SayHello(document.getElementById('Text1').val ue, OnSuccess,OnFailure, "UserContextDataHere");

Only OnSuccess and OnFailure, no OnTimeout and allows UserContext data being sent around etc.

This correct?

Sarkie

]]>Comment Posted by JoeStagnerhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxTue, 15 Jul 2008 08:28:46 GMT00000000-0000-0000-00000000445Sarkie - that's correct. If the error is a time-out the error message will contain that data,

]]>Comment Posted by claooigthttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxWed, 16 Jul 2008 05:27:27 GMT00000000-0000-0000-00000000446Great show case...

Questions: If my business logic need to wait until server callback complete before I can proceed to the next line of code, how I can do it? Any sample?

For example, before save a record, I validate on duplicate entry against database records. If web method return "0", then only I proceed with the next validation. Please advise.

Thanks!

]]>Comment Posted by toakeshttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxMon, 28 Jul 2008 21:44:35 GMT00000000-0000-0000-00000000447I'm having the same error that eunicep was having - a Javascript error that states that the service name is undefined.  I'm not sure where to find the namespace for the site?

Can anyone point me in the right direction?

Thanks!

]]>Comment Posted by toakeshttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxMon, 28 Jul 2008 22:45:28 GMT00000000-0000-0000-00000000448I solved my problem by registering the web service in VS.

]]>Comment Posted by new_to_ajaxhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxFri, 01 Aug 2008 15:40:34 GMT00000000-0000-0000-00000000449Hi Joe,

How can I call server side method (public method in codebehind class) from javascript similar to the call that you made to web service?

Thanks,

-Asif

]]>Comment Posted by cv_vikramhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxWed, 06 Aug 2008 13:26:08 GMT00000000-0000-0000-00000000450It is simple and good....

]]>Comment Posted by sonalbagdiyahttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxWed, 06 Aug 2008 17:30:57 GMT00000000-0000-0000-00000000451Hi Asif,

You can call server side method by calling onserverclick=method() on html button in source rather than calling onclick for html button.

Thanks

]]>Comment Posted by liujack123@hotmail.comhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxMon, 18 Aug 2008 23:12:17 GMT00000000-0000-0000-00000000452hello

   I followed the vedio and do what he did in the vedio,then run the website,and i click the button,but no popup .there is nothing while I am clicking,what happened? could any one tell me about it .thank u

]]>Comment Posted by S.Pirashanthhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxThu, 28 Aug 2008 06:56:19 GMT00000000-0000-0000-00000000453Many thanks Joe for the excellent video series

]]>Comment Posted by nolazabalhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxThu, 18 Sep 2008 17:58:51 GMT00000000-0000-0000-00000000454Hello Joe,

I would be interested to know if the same calls you made in this example in an aspx page can be made from a simple html page.

The reason is that I have some existing web services I would like to use on some old html pages.

]]>Comment Posted by nsuresh_rasrhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxThu, 25 Sep 2008 11:32:50 GMT00000000-0000-0000-00000000455very good article... really helpful....

]]>Comment Posted by emre.kocyigithttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-make-client-side-network-callbacks-with-aspnet-ajaxTue, 07 Oct 2008 19:51:52 GMT00000000-0000-0000-00000000456I appreciate these series a lot htnak you!

May I ask you sth tough .. which server side types are ready to go for this and which need to be manually serialized?

string and int only I suppose .. you know web is big .. its easy just to pop up a question here .. you know the best programmer is the lazy one :)

cheers!

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