Hi Geoffrey
> If I have a class 'Foo' (containing the function 'Wabble'), which loads
> another class 'Bar', is it possible a function within 'Bar' to execute the
> 'Wabble' function within the calling class 'Foo'?
Your first problem is that you are talking about classes without thinking about
instances of those classes (objects).
Am I to take it that 'Wabble' is the method that creates and shows the view?
What you also need to consider is how you are going to get the address book
data into the editing view. The easier way is to connect the controls on the
form to properties of an object, using the bindings mechanism provided by Cocoa.
You need something like this:
@interface DataClass : NSObject
{
// fields to hold data
}
@property NSString *name;
@property NSString *addressLine1;
…
- (void) showView;
@end
@implementation
- (void) showView
{
DataViewController *controller = [[DataViewController alloc]
initWithData:self];
...
}
@end
@interface DataViewController : NSObject
{
@private
DataClass *dataProvider;
}
- (DataViewController *) initWithData:(DataClass *)data;
…
@end
@implementation DataViewController
- (DataViewController *) initWithData:(DataClass *)data
{
self = [super init…];
if (self)
{
dataProvider = data;
}
return self;
}
@end
Then you can bind the controls from the view to the properties of the DataClass
instance that are available on the dataProvider field in the DataViewController
class.
Joanna
--
Joanna Carter
Carter Consulting
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