Extending MFC Applications with the .NET Framework

Summary

As you've seen in the past two chapters, disconnected data can open your system design to an entirely new set of possibilities. However, there are some aspects of working with disconnected data and the DataSet class that aren't obvious. This chapter addressed several of these issues, including reading and writing binary data, associating related tables with the DataRelation class for easier and more efficient navigation, and handling concurrency issues with multiuser, disconnected data systems. The chapter began by illustrating how to use the DataReader class to read binary data. As DataReader only provides a means of reading data, the section then illustrated how to manually set up SqlCommand and SqlParameter objects to write binary ...