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HomeHomeArchived Discus...Archived Discus...Developing Under Previous Versions of .NETDeveloping Under Previous Versions of .NETASP.Net 2.0ASP.Net 2.0Making Async WebService calls from a DNN ModuleMaking Async WebService calls from a DNN Module
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3/1/2007 2:52 AM
 
CodeMangler

Joined: 2/7/2007
Posts: 3
Hello all,
 I'm trying to make an async web service call from a DNN module. But it fails with the error message:

"Asynchronous operations are not allowed in this context. Page starting an asynchronous operation has to have the Async attribute set to true and an asynchronous operation can only be started on a page prior to PreRenderComplete event"

If I have to make an asynchronous webservice call in ASP.NET, I'd set the Async property of the Page tag to true.

But can somebody help me figure out how to do the same in DNN? Any help is appreciated
 
New Post
3/21/2007 4:19 AM
 
Vladan Strigo

Vladan.Strigo.NET
Joined: 11/27/2003
Posts: 505

I am not sure if you can do it from your module (probably not).... one easy way would be to change the Default.aspx page itself and just add the attribute. However this introduces a whole set of problems with maintenence (although it a quite small change).

What scenario are you trying to acomplish with async web services? Did you try executing them async (async by default) with MS Ajax in DNN?

 

Thanks,
Vladan Strigo
NETMedia

My website: Vladan.Strigo.NET

Vladan.Strigo.NET: Projects
* Advanced VS2005 development approach - BlankModule
* DNN & Microsoft Ajax best practices guidance

Vladan.Strigo.NET: Resources
* Comprehensive list of DNN 4 Module development resources
 
New Post
3/21/2007 6:01 AM
 
CodeMangler

Joined: 2/7/2007
Posts: 3
thanks for the reply
setting Async=true in Default.aspx works fine
but that brought out some other issues (specific to my application), so I had to revert back to making a sync call..

haven't tried Atlas with DNN though..
 
New Post
3/21/2007 8:52 AM
 
Vladan Strigo

Vladan.Strigo.NET
Joined: 11/27/2003
Posts: 505

Well ok... good luck.

Anyway... Ajax with DNN and web service calls works like a charm.

 

Thanks,
Vladan Strigo
NETMedia

My website: Vladan.Strigo.NET

Vladan.Strigo.NET: Projects
* Advanced VS2005 development approach - BlankModule
* DNN & Microsoft Ajax best practices guidance

Vladan.Strigo.NET: Resources
* Comprehensive list of DNN 4 Module development resources
 
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