BTW, for business objects, I suggest inheriting from typed DataSets. On the face of this there are some problems with it, but Chris Sells and I will be releasing a VS add-in in the coming weeks to fix the generated code to allow you to inherit from it. I cover this in my forthcoming book if you want a more comprehensive discussion of it.
Thanks, Shawn Wildermuth [EMAIL PROTECTED] > -----Original Message----- > From: dotnet discussion [mailto:[EMAIL PROTECTED]] > On Behalf Of Loc Nguyen > Sent: Wednesday, May 29, 2002 3:20 PM > To: [EMAIL PROTECTED] > Subject: [DOTNET] Checked casting between DataSet and its children > > > I am investigating deriving DataSet for business objects. > However, since datasets may contain several datatables, I > need to ensure that the dataset has a specific table. When > casting from a dataset to one of my business objects, I would > like to be able to intercept it and check if this table > exist. If it does not, I'd like to throw an invalid cast > exception. Can this be done? > > You can read messages from the DOTNET archive, unsubscribe > from DOTNET, or subscribe to other DevelopMentor lists at > http://discuss.develop.com. > You can read messages from the DOTNET archive, unsubscribe from DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.
