I agree with the latter part of cesar's comments, but I think that often, web services are necessary in certain scenarios, especially when you want a loosely coupled architecture in place which can be scaled to other clients at a later point in time.  

-Altaf [MVP]

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www.mendhak.com
 If it is a HTTP Time-Out, using "<httpRuntime executionTimeout" should be
 enough. So, make sure it is not a DataBase Time-Out.

 BTW, if your ASP.NET Web-App is within the same Server where the WebService
 is..., probably you should't use WebServices, just call a .DLL Class-Library
 with Business and Data Access Components accesing the DataBase. You will
 achive a much more better performance. In most scenarios It does not make
 sense to use WebServices (HTTP) within the same Server, you get a lot of
 latency because of HTTP... (take into account I do not know your scenario,
 but I see that you need a better performance system).

 Anyway, for that scenario (10 minutes loading an ASP.NET page), may be you
 should think about having a async. environment, or a 'client-polling' system.
 An ASP.NET loading for 10 minutes doesn't make sense to me...
 --
 CESAR DE LA TORRE
 Software Architect
 [Microsoft MVP - XML Web Services]
 [MCSE] [MCT]

 Renacimiento
 [Microsoft GOLD Certified Partner]  

 "Dorte" wrote:

 > Hi,
 > My ASP.NET application calls a web service (in the same project) that
 > queries a SQL server by using a data adapter to fill a dataset. The
 > dataadapter may fill more than one dataset to build the resulting dataset.
 > This can take several minutes (I think up to approximately 10 minutes) before
 > a result set is ready. The result set is displayed in a datagrid. It works ok
 > in VS.NET but when the project is deployed, the time consuming queries
 > generate the following error "Request timed out"
 > I have set the httpRuntime executionTimeout="900" in the web.config but it
 > does not make any change.
 > Does anyone know how to solve this problem? Thanks in advance for any replies.
 >
 > Dorte