In this course we begin our journey to produce data-aware applications. Before we can do this we need to understand how datasets work. Probably the most common dataset is TClientDataSet which is used extensively in all sorts of data-aware applications, making knowledge of it essential in building modern Delphi applications. In part 1 we take a close look at many of its properties and methods and using its abilities to load and save data to either a xml file or binary packet. Examples are done using the VCL and you should be able to follow along even with very old versions of Delphi.