Hi,I want to dynamically change the entity an arraycontroller is using depending on a selection in the UI.
When I do I either end up with undefinedkeys because the remaining items from previous entity hang around, or if I explicitly say setContent:nil it only works once, after that it stays empty and doesn't fetch new items from the currently selected entity then.
NSString *zEntityname = [[[entitiesController selectedObjects] objectAtIndex:0] valueForKey:@"name"]; NSEntityDescription *zEntity = [[[self managedObjectModel] entitiesByName] objectForKey:zEntityname];
[databaseController setContent:nil];
[databaseController setEntityName:zEntityname];
id thisOne;
int i;
for (i=[[dataTable tableColumns] count];i>0;i--){
[dataTable removeTableColumn:[[dataTable tableColumns]
objectAtIndex:0]];
}
for (thisOne in [[zEntity attributesByName] allKeys]){
NSTableColumn *newColumn = [[NSTableColumn alloc]
initWithIdentifier:thisOne];
[[newColumn headerCell] setStringValue:thisOne];
[newColumn bind:@"value"
toObject:databaseController
withKeyPath:[NSString stringWithFormat:@"arrangedObjects.
%@",thisOne]
options:nil];
[dataTable addTableColumn:newColumn];
[newColumn release];
}
What do I have to do so this works?
Thanks
Alex
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