Hello Mark,
a brief overview would be something like this (mainly quoting the documents I
will specify later):
Both DataSet and DataHolder components are part of the Data Integration
architecture in Flash (Professional only).
DataHolder - a simplified version of the DataSet component. It's main purpose
is to hold data and act as a connector between other components using data
binding. When initialized, it has a single property called data.
DataSet - a much more robust and complex component. It is one of the essencial
parts of the Flash data management concept. You will use a DataSet when
connecting to external data sources. It works with the dataProvider interface
(a representation of the data stored inside a DataSet) and it can generate
deltaPackets (needed for communication with external data sources through an
XMLConnector or Resolvers). Also, sorting, searching, etc. is much easier with
a DataSet because of its already built in methods and properties.
In very simple terms - you can live without DataHolders, but you need DataSets.
Now the references:
- Using Flash - should be part of your Help in Flash. Also available as a .pdf
file at
http://www.macromedia.com/devnet/flash/articles/flashpro_asp.html,
gives a very good introduction to DataBinding and usage of the appropriate
components.
- Flash Developers Center - see the Data Integration link, there are many
tutorials and articles on the topic.
If you have any questions, let us know...
Good luck,
Simon.
