action:@selector()

[dizy]

If i add a custom button to a tableViewCell and ...
[button addTarget:self action:@selector(infoButtonPressed) forControlEvents:UIControlEventTouchUpInside];

How can I pass arguments to the selector ?

I would like to know which row the button was pressed

TIA

[h2h]

Originally Posted by dizy

If i add a custom button to a tableViewCell and ...
[button addTarget:self action:@selector(infoButtonPressed) forControlEvents:UIControlEventTouchUpInside];

How can I pass arguments to the selector ?

I would like to know which row the button was pressed

TIA

Well you don't pass arguments, but you rather pick them up...

change your selector to:

infoButtonPressed:

and then you must implement in your controller the following function:

-(void)infoButtonPressed:(id)sender 
{
// here you can access the object which triggered the method
// for example you can check the tag value

NSLog(@"the tag value is: %d", [sender tag]);
}

hope this helps

greetings

[BoB3K]

So, you can't just pass arguments when using action:@selector() ?

[dizy]

Thanks h2h, that does help.

So I guess that means I have to first assign the button.tag to the row number first.

Is tag just a generic placeholder for passing Integers ?

What if I wanted to somehow pick up a specific object based on the row... or maybe a better question would be... what other methods/properties do you normally access via the sender ?

Originally Posted by h2h

Well you don't pass arguments, but you rather pick them up...

change your selector to:

infoButtonPressed:

and then you must implement in your controller the following function:

-(void)infoButtonPressed:(id)sender 
{
// here you can access the object which triggered the method
// for example you can check the tag value

NSLog(@"the tag value is: %d", [sender tag]);
}

hope this helps

greetings

[h2h]

Originally Posted by dizy

Thanks h2h, that does help.

So I guess that means I have to first assign the button.tag to the row number first.

Thats a good starting point, that's what I do to keep track of the cells, specifically since generally the row is related to the 'objectAtIndex' of an array as datasource...

Originally Posted by dizy

Is tag just a generic placeholder for passing Integers ?

right

Originally Posted by dizy

What if I wanted to somehow pick up a specific object based on the row... or maybe a better question would be... what other methods/properties do you normally access via the sender ?

Well this depends on what you want to do. The sender is a way to get access to the object which called the function ... and from there on it is up to your imagination

greetings

[dizy]

Is there some generic (id) placeholder that I can use ?

Originally Posted by h2h

Well this depends on what you want to do. The sender is a way to get access to the object which called the function ... and from there on it is up to your imagination

greetings

[hedfuc]

seems like there is no any

[Dvdkite]

I just want to say thank you to h2h.

It works perfectly and it's so simple to implement.

the best and fast solution for the problem.

Thank you!!!!!!!

Greetings

David

[AsifB]

I have
- (MKAnnotationView *)mapViewMKMapView *)mV viewForAnnotationid <MKAnnotation>)annotation
{
........ some code ......

[rightButton addTarget:self
action:@selector(showDetails)
forControlEvents:UIControlEventTouchUpInside];

...... some code .....
}

- (void)showDetailsid)sender
{

MyDetailView *Second = [[MyDetailView alloc] initWithNibName:@"MyDetailView" bundle:nil];
[self presentModalViewController:Second animated:YES];

//I want to assign the annotation title to the details view

Second.label.text = ????

[Second release];

}

How can I do that?