Duncan McLean wrote:
So can anyone take my other question - can someone explain the uses of
data binding in forms (java bean or xml) citing some examples of where
it might be useful? (I guess I am interested in what gains it could give
us in our situation)
I'll take a stab at it briefly...
The CForms binding framework is simply a way to map values back and
forth between the form model (essentially a tree structure of widgets)
and a "business object". For instance, your business processing layer
probably already defines JavaBeans for transferring data around, but the
CForms form object has a different structure. So once a user fills in
the form object with their values, somehow those values need to get
mapped onto the JavaBean. A binding allows you to define the rules for
how those two specialized objects' contents can be synced up. You could
of course do it manually by copying the values over one-by-one in your
Java/JS code, but the binding framework lets you define the mapping
declaratively in an XML format, which can be more convenient.
Hope that's a good start.
--Jason
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