In general remoting is supposed to interoperate between .NET 1.0 and 1.1, however a few "bugs" slipped through (IPAddress and Comparer classes are the only two problems I'm aware of). It is possible to work around these issues, but it can be fairly complex if you want to do it transparently.
See my post on this issue: http://discuss.develop.com/archives/wa.exe?A2=ind0306B&L=ADVANCED-DOTNET&D=0&I=-3&P=3118 A Thread with some comments from Doug Purdy (MS PM for the serialization team): http://discuss.develop.com/archives/wa.exe?A2=ind0306D&L=DOTNET-CLR&P=R475&I=-3 Rick ----- Original Message ----- From: "Igor" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Wednesday, August 20, 2003 12:02 PM Subject: clinet 1.0 <-> server 1.1 > I posted a problem on MS remoting newsgroup (with the same subject, if you > want a full story) regarding error in .Net when using client using > framework 1.0 and server using framework 1.1 and get a replay from Ingo > Rammer (thanks Ingo) saying that the serialization format of Datasets has > been changed in ADO.NET 1.1. Which in my configuration (client 1.0 <-> > server 1.1) produces an error on the client side: > System.InvalidCastException: Return argument has an invalid type. > > Then I change this untyped dataset to typed dataset (because in other > function I have typed dataset and there remoting works). After that > everything works fine. > > Is that a solution to this problem? > Are there difference in serialization of untyped and typed datasets and why > the change in ADO.NET 1.1. serialization does not affect typed datasets. > > Indeed I'm interested is it safe to use 1.0 clients with 1.1 server, if I > don't use untyped dataset (which obviously don't work). > > Thanks, > Igor > > =================================== > This list is hosted by DevelopMentorŪ http://www.develop.com > NEW! ASP.NET courses you may be interested in: > > 2 Days of ASP.NET, 29 Sept 2003, in Redmond > http://www.develop.com/courses/2daspdotnet > > Guerrilla ASP.NET, 13 Oct 2003, in Boston > http://www.develop.com/courses/gaspdotnet > > View archives and manage your subscription(s) at http://discuss.develop.com > =================================== This list is hosted by DevelopMentorŪ http://www.develop.com NEW! ASP.NET courses you may be interested in: 2 Days of ASP.NET, 29 Sept 2003, in Redmond http://www.develop.com/courses/2daspdotnet Guerrilla ASP.NET, 13 Oct 2003, in Boston http://www.develop.com/courses/gaspdotnet View archives and manage your subscription(s) at http://discuss.develop.com