after my last question, regarding accessing an array from a different class, I ran into an new problem, that's giving me a headache for three days now. Everytime I think I have the correct solution approach, I fail.
Well... I don't have many experience yet regarding Cocoa Programming. But maybe you are able to give me the missing hint.
Let me show you what approach I've chosen:
1) the declaration of an array in the class PortConnection.h/.m
@interface PortConnection : NSObject {
@private
NSMutableArray *baudArray;
}
@property (nonatomic, retain) NSMutableArray *baudArray;
and the synthesize in .m
@implementation PortConnection
@synthesize baudArray;
Next I decided to implement a method in the ViewController that should be in charge of filling the array with data I need for display. The name of the class is "PortTableViewController.h"
#import "PortConnection.h"
@interface PortTableViewController : NSObject <NSTableViewDataSource, NSComboBoxDataSource> {
@private
IBOutlet NSComboBox *baudSelection;
PortConnection *portConnection;
}
@property (assign) IBOutlet NSTableView *portTableView;
- (IBAction)fillBaudSelection:(id)sender;
@end
and the implementation of my method "fillBaudSelection".
- (IBAction)fillBaudSelection:(id)sender {
int baudCount = [portConnection.baudArray count];
int i;
for (i = 0; i <= baudCount; i++){
[baudSelection addItemWithObjectValue:[portConnection.baudArray objectAtIndex:i]];
}
}
Furthermore I implemented the delegate methods for the combobox.
- (id)comboBox:(NSComboBox *)aComboBox objectValueForItemAtIndex:(NSInteger)index{
return [portConnection.baudArray objectAtIndex:index];
}
- (NSInteger)numberOfItemsInComboBox:(NSComboBox *)aComboBox{
return [portConnection.baudArray count];
}
My questions are:
1) Do I need to use the Delegate Methods for a combo box at all? 2) the Combobox isn't filled with data at all, though the array is filled with data 3) Am I thinking to complicated??
Thanks so much for every hint I get from you!
best Regards Sebastian
