iPad: Show view as Model View

i want to show my view as a model view. In iPad there are four method to show the view as modal which is listed 1. Full Screen 2. Page Sheet 3. Form sheet 4. Current Context

i use following code to display the view as model

-(void)OpenContactPicker {                                  开发者_开发技巧 
    ABPeoplePickerNavigationController *ContactPicker = [[ABPeoplePickerNavigationController alloc] init];
    ContactPicker.peoplePickerDelegate = self;
    [self presentModalViewController:ContactPicker animated:YES];

    //[self.modalViewController presentModalViewController:ContactPicker animated:YES];
    [ContactPicker release];
}

above code open the view in full screen mode but i want to some different.

Please suggest how can i show this view as Page Sheet or Form sheet or Current Context

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Check the modalPresentationStyle property.