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PONSTableView binding problem
 

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  1. PONSTableView binding problem
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    <p>I have only just started with XCode (v3.2.2) and Interface Builder and have run into a problem.</p> <p>Here is what I have done:</p> <p>I have made a class to be the datasource of a NSTableView:</p> <pre><code>@interface TimeObjectsDS : NSControl { IBOutlet NSTableView * idTableView; NSMutableArray * timeObjects; } @property (assign) NSMutableArray * timeObjects; @property (assign) NSTableView * idTableView; - (id) init; - (void) dealloc; - (void) addTimeObject: (TimeObj *)timeObject; // NSTableViewDataSource Protocol functions - (int)numberOfRowsInTableView:(NSTableView *)tableView; - (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row: (int)row; @implementation TimeObjectsDS @synthesize timeObjects; @synthesize idTableView; -(id) init { if (self = [super init]) { self.timeObjects = [[NSMutableArray alloc] init]; TimeObj *timeObject = [[TimeObj alloc] init]; [timeObject setProjectId:11]; [timeObject setDescription:@"Heja"]; [timeObject setRegDate:@"20100331"]; [timeObject setTimeSum:20.0]; [timeObjects addObject:timeObject]; [timeObject release]; [idTableView reloadData]; } return self; } - (void) dealloc { [idTableView release]; [timeObjects release]; [super dealloc]; } // Functions - (void) addTimeObject: (TimeObj *)timeObject { [self.timeObjects addObject:timeObject]; [idTableView reloadData]; } // NSTableViewDataSource Protocol functions - (int) numberOfRowsInTableView:(NSTableView *)tableView { return [self.timeObjects count]; } - (id) tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(int)row { return [[timeObjects objectAtIndex:row] description]; } @end </code></pre> <p>I have then bound my NSTableView in the View to this datasource like so:</p> <p><a href="http://www.og-entertainment.com/tmp/ib_datasource_bindings_big.png" rel="nofollow noreferrer">alt text http://www.og-entertainment.com/tmp/ib_datasource_bindings_big.png</a></p> <p>I have also bound the View NSTableView to the Controller idTableView variable in Interface Builder seen above</p> <p>In the init function I add a element to the mutable array. This is displayed correctly in the NSTableView when I run the application. However when I add another element to the array (of same type as in init) and try to call <strong>[idTableView reloadData]</strong> on the View nothing happens. In fact the Controller idTableView is null. When printing the variable with <strong>NSLog</strong>(@"idTableView: %@", idTableView) I get "<strong>idTableView: (null)</strong>"</p> <p>Im runing out of ideas how to fix this. Any ideas to what I could do to fix the binding?</p>
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    1. USNiklas Ottosson
    1. USNiklas Ottosson
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