Two PickerViews with different values - iphone

Question

This is my code for two pickerviews in one view controller. However its not working for me.
#pragma mark UIPickerViewDelegate methods
//PickerViewController.m
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView {
return 1;
}
- (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component {
switch ([thePickerView tag]) {
case 1: //purpose picker
return [m_arrPurpose count];
case 2: //second picker
return [m_arrSweep count];
default:
return 0;
break;
}
}
- (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
switch ([thePickerView tag]) {
case 1: //purpose picker
{
//cost.text = #"Test";
Purpose *prp = [m_arrPurpose objectAtIndex:row];
return [prp m_purposeName];
}
case 2: //second picker
{
OpenActivity *opn = [m_arrSweep objectAtIndex:row];
return [opn m_ahhaName];
}
default:
return #"";
break;
}
}
can any1 help me with this please..
thanks

Answer 1

It sounds like either your tags aren't set correctly or you havent connected the datasource and delegate methods for both pickers.
Add some NSLog statements in the numberOfRowsInComponent and titleForRow: methods.
Include the picker view object and the picker view's tag in the log, e.g.
NSLog(#"Rows in component for %#, tag %d",thePickerView,[thePickerView tag]);
And a different text in the titleForRow.
You should see two different objects - if not, your delegate and datasource are not connected. You should see tags 1 and 2 - if not, your tags are not set properly.

Answer 2

With this problem there was nothing wrong with my code It's just that I forgot to set tag's value to 1 and 2 in XIB.