[How Do I:] ASP.NET AJAX Enable an Existing Web Service?http://asp.netMon, 28 Dec 2009 03:20:06 GMTumbracoComments for [How Do I:] ASP.NET AJAX Enable an Existing Web Service?enComment Posted by aarturohttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceMon, 04 Aug 2008 17:21:14 GMT00000000-0000-0000-00000000519Hi Joe,

Your example worked great!  but as soon as I created a separate project for my webservice I ran into issues.   It appears that I am not getting a resolveable path for my asmx file.

typically it would be something like

Path="WebServiceName.asmx"  

If the webservice resides in same project but I have it in another project whose name is wsNorthwind and the webservice is NorthwindJS.asmx.  So I figured this

Path="~/wsNorthwind/NorthwindJS.asmx"  I get an error that says NorthwindJS is undefined.

I also tried envoking it as wsNorthwind.NorthwindJS.SayHello with no success?!

What gives??

]]>Comment Posted by cv_vikramhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 06 Aug 2008 13:26:59 GMT00000000-0000-0000-00000000520It is simple and good....

]]>Comment Posted by pnv.ravikiranhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 06 Aug 2008 21:23:24 GMT00000000-0000-0000-00000000521really helpful, thanks Joe

]]>Comment Posted by westdesertguyhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceFri, 19 Sep 2008 17:56:51 GMT00000000-0000-0000-00000000522Joe, it seems your example fails in FireFox and Google Chrome. What would cause this?

Great tutorial though! Thanks!

]]>Comment Posted by GaganK1http://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 24 Sep 2008 20:26:20 GMT00000000-0000-0000-00000000523Hi Joe

I do have same problem as "aarturo".

I am not able to call my web service which resides outside of my current application. Any Idea on that...

]]>Comment Posted by trevorabrookshttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 26 Nov 2008 12:57:48 GMT00000000-0000-0000-00000000524use "<a rel="nofollow" target="_new" href="http://myserver/myapp/myfile.asmx"">myserver/.../myfile.asmx"</a>

]]>Comment Posted by Danny117http://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceSun, 21 Dec 2008 12:21:43 GMT00000000-0000-0000-00000000525This is a must watch video.

]]>Comment Posted by djibril_chimere_DIAWhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceTue, 30 Dec 2008 03:01:09 GMT00000000-0000-0000-00000000526Thanks! Jërëjëf!

]]>Comment Posted by ashokrbphttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceMon, 02 Mar 2009 23:44:47 GMT00000000-0000-0000-00000000527awesome video...But I have an xml file as an output from the webservice. so now What should I have in the OnComplete function.

]]>Comment Posted by ashokrbphttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceTue, 03 Mar 2009 01:58:03 GMT00000000-0000-0000-00000000528Will this work if my webservice uses a database to retrieve the data?

]]>Comment Posted by kotiRajhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 29 Apr 2009 09:57:44 GMT00000000-0000-0000-00000000530useful video , thanks dude

]]>Comment Posted by TTao675http://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceSun, 10 May 2009 11:17:16 GMT00000000-0000-0000-00000000531thanks! :)

]]>Comment Posted by abelanethttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 27 May 2009 12:21:46 GMT00000000-0000-0000-00000000532Great! Thanks

]]>Comment Posted by akmsaeeahttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceTue, 11 Aug 2009 07:40:50 GMT00000000-0000-0000-00000000533I liked this explanation..Really Thanks..

]]>Comment Posted by akmsaeeahttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceTue, 11 Aug 2009 10:49:25 GMT00000000-0000-0000-00000000534Informative..Thanks...

]]>Comment Posted by synapsyshttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceTue, 01 Sep 2009 21:56:55 GMT00000000-0000-0000-00000000535All of the examples I'm finding (including this one) embed their web service code in their web app project. It is much more common to have external web services in another project or more LIKELY, multiple servers with specific port numbers.

So in the script managers <Services> section you need to specify a path. But there is not an ID or anything else to identify it for the jscript code. So, if you use a URL for your web service address, I can't find anyway for the jscript to refrence it.

For example:

<asp:ScriptManager ID="ScriptManager1" runat="server">

<Services>

<asp:ServiceReference Path="MyWebsite.com

</Services>

</asp:ScriptManager>

If you use Service1 in the jscript, it doesn't work. And certainly you can't use the entire URL containing the asm, because this is not a valid jscript object and causes a syntax error.

Also, I might have several versions of a web service (production and sandbox), and I see no easy way to use them in javascript OR easily switch between them.

Help?

]]>Comment Posted by synapsyshttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceTue, 01 Sep 2009 21:58:38 GMT00000000-0000-0000-00000000536My last post didn't display the example correctly. I'll try to html comment it here:

<!--

<div>

<asp:ScriptManager ID="ScriptManager1" runat="server">

<Services>

<asp:ServiceReference Path="localhost

</Services>

</asp:ScriptManager>

</div>

-->

]]>Comment Posted by synapsyshttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 02 Sep 2009 08:23:12 GMT00000000-0000-0000-00000000537Looks like a bug. I figured out the correct syntax for calling the JSON wrapped web service call from java script, but ran into an even bigger problem. Turns out it will use your full URL to get the generated javascript interface, BUT when the HTTP Request is built it uses the WRONG service path. It is using the "short version" of the path that is not the full URL to the service. Thus, when it doesn't find the server in the path, it resolved it to your local web app's which is totally WRONG. This means you instantly get a 404 error.

Soooo.... does someone have a work-around for this, or should I completely exclude AJAX as a technology I want to even consider using?

]]>Comment Posted by panandhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceTue, 20 Oct 2009 03:46:32 GMT00000000-0000-0000-00000000538I tried to use it with a remotely deployed client and it does not work. The web service is available, and as Joe demonstrated, the /js and /jsdebug tests confirm that my webservice has indeed been AJAX-enabled. I remember reading something in the basics that AJAX calls do not work across 2 different domains for security reason. This behaviour is by design. Could this be the problem?

]]>Comment Posted by panandhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceTue, 20 Oct 2009 15:43:12 GMT00000000-0000-0000-00000000539Hi again,

Following up on my comment yesterday, I went back to the book where I read about making calls using AJAX. It did have a section on AJAX security that states that you cannot make JAVAScript calls across domains, or even the same domain using different protocols (http vs. http). As mentioned before, this behaviour is by design for security reasons.

Further, one of the solution this section offers is to have a webservice (which as per this video, can be ajax enabled) contained within our web application that would inturn call an external web application using the traditional synchronous or asynchronous client-server call.

It is the chapter on AJAX Networking in this book : Professional ASP.NET 2.0 AJAX (Programmer to Programmer) by Matt Gibbs, Dan Wahlin

If anyone has a better solution, please let me know.

Cheers,

-panand

]]>Comment Posted by lohith.bnhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 21 Oct 2009 11:51:21 GMT00000000-0000-0000-00000000540Good to watch this video...

]]>Comment Posted by viraj24http://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceFri, 13 Nov 2009 19:15:36 GMT00000000-0000-0000-00000000541nice thanks

]]>Comment Posted by fusion_developerhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceSat, 28 Nov 2009 08:06:06 GMT00000000-0000-0000-00000000542Gr8 Video...Thanks !

]]>Comment Posted by Shinerhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceWed, 09 Dec 2009 21:44:54 GMT00000000-0000-0000-00000000543Is there really no way to make a web service call to a different domain? I have cascading drop down lists that call web services in different domains. Surely, there is a way to do the same thing with direct web service calls.

]]>Comment Posted by panandhttp://asp.net/web-forms/videos/aspnet-ajax/how-do-i-aspnet-ajax-enable-an-existing-web-serviceMon, 28 Dec 2009 03:20:06 GMT00000000-0000-0000-00000000544Replying to Shiner's post, yes there is. But we will have to use JSON-P to make AJAX calls work with web services across a different domain.

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