How do I Handle Business Logic Exceptions?http://asp.netThu, 24 Sep 2009 00:53:34 GMTumbracoComments for How do I Handle Business Logic Exceptions?enComment Posted by CODEWIRE.NEThttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsSat, 31 May 2008 16:59:39 GMT00000000-0000-0000-000000003026How du I access Session in the partiel method like  OnValidate? I want to set a field to a session-variable on every insert.

if (action == System.Data.Linq.ChangeAction.Insert)

{

  Id = Guid.NewGuid();

  AccountId = Session("AccontId"); // Current account

}

]]>Comment Posted by shanselmanhttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsMon, 09 Jun 2008 14:25:15 GMT00000000-0000-0000-000000003027You would need to use HttpContext.Current.Session, but I think you'd be tying your model objects to the Session which could limit your design's usefulness in other projects.

]]>Comment Posted by shanselmanhttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsMon, 09 Jun 2008 14:25:43 GMT00000000-0000-0000-000000003028You'd need to use HttpContext.Current.Session.

]]>Comment Posted by Dom Márciohttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsMon, 07 Jul 2008 22:39:57 GMT00000000-0000-0000-000000003029Hi Scott. How can I implement business logic in the Delete-Insert-Update/Object partial method in the DataContext partial class? Thanks in advance.

]]>Comment Posted by EdSFhttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsMon, 25 Aug 2008 19:52:19 GMT00000000-0000-0000-000000003030Thanks for all your work on these videos!

]]>Comment Posted by jtwebmanhttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsMon, 29 Sep 2008 18:40:29 GMT00000000-0000-0000-000000003031Scott first off thank you very much for the videos! I am starting to understand the power of Dynamic data.

One question that throws red alerts in my mind is using exceptions for validation. Is there way to tie in a more simple validation like in Rocky Lhotka CSLA framework of having a collection of validation errors instead of throwing a expensive (time and cpu) exception?

Thanks!

]]>Comment Posted by dev01http://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsWed, 15 Oct 2008 16:45:19 GMT00000000-0000-0000-000000003032I created a partial class Product and implemented OnProductNameChanging just like Scott in the video. It fires 3 times with new value, old value and then again new value of the product? Therefore throwing ValidationException the second  time it fires with the value Chai instaed of ACME.

]]>Comment Posted by mgrassmanhttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsFri, 17 Oct 2008 03:01:03 GMT00000000-0000-0000-000000003033I got the same as above any solution/how to check which value we are using.

Thanks for the great tutorials.

]]>Comment Posted by djibril_chimere_DIAWhttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsFri, 31 Oct 2008 11:58:55 GMT00000000-0000-0000-000000003034Thanks! Jërëjëf!

]]>Comment Posted by pg.nethttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsTue, 09 Dec 2008 02:10:12 GMT00000000-0000-0000-000000003035When I try to validate some value and throw exception let's say in OnContentIDChanging(int? value) method I will recieve JavaScript error (exception) instead of "validation summary" error. I'm experiencing this problem only with nullable types. Any idea where is the problem or how to solve this?

Thanks in advance!

]]>Comment Posted by rami_nassarhttp://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsTue, 10 Feb 2009 05:53:06 GMT00000000-0000-0000-000000003036well done

]]>Comment Posted by kannank7http://asp.net/web-forms/videos/aspnet-dynamic-data/how-do-i-handle-business-logic-exceptionsThu, 24 Sep 2009 00:53:34 GMT00000000-0000-0000-000000003037thanks for the validation presentation, but if I want to apply my validation in just one page for e.g. let us say Insert and not in Update. where do i have to write it ?

]]>