how to trigger an event of navigationitem rightBarButtonItem programmatically?

i created an navigationitem rightBarButtonItem in the following code and I would like to trigger its event programmatically ( just like click the bar button ). search everywhere but can't find how to do it. does anyone know the method? thx a lot.

    UIBarButtonItem *reloadbutt开发者_运维知识库on = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(Action1:)];
 self.navigationitem.rightBarButtonItem = reloadbutton;
 [reloadbutton release];
 

Since you already have an action method that you're using with the button, you can just call the method yourself; for example,

 [self Action1:self.navigationItem.rightBarButtonItem];