Question

My problem is how to reload the tableview

I have 2 viewcontrollers.

In first Viewcontroller I have one tableview. if I select any row in tableview it goes to second viewcontroller.

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath;
{
    NextPageController *nextView = [[NextPageController alloc] initWithNibName:@"NextPageView" bundle:nil];
    [self.navigationController presentModalViewController:nextView animated:YES];
    [nextView release];
}

in second view controller I have one textfield. If I enter any value into the textfield I need to disaplay that value into the first viewcontroller tableview.

can any one help me?

Thanks in advance.

Answer 1

give NextPageController a protocol and a delegate,just like this:

@protocol (NextPageControllerDelegate)
-(void)displayString:(NSString *)inputString;
@end

@interface FirstTableViewController : UITableViewController {
    id<NextPageControllerDelegate> stringDelegate;
}

@property (nonatomic, assign) id<NextPageControllerDelegate> stringDelegate;

and in the .m file:

@implementation
@synthesize stringDelegate;

then, when you alloc the NextPageViewController, insert this:

(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath;  
{ 
    NextPageController *nextView = [[NextPageController alloc] initWithNibName:@"NextPageView" bundle:nil]; 

    nextView.stringDelegate = self;

    [self.navigationController presentModalViewController:nextView animated:YES]; 
    [nextView release]; 
}

of course, your table view controller must conforms to the NextPageControllerDelegate protocol, and give the implementation of

-(void)displayString:(NSString *)inputString;

after that, when you are in nextView, and want to have the table view display that string, you may do this:

if(nil != self.stringDelegate)
    [self.stringDelegate displayString:someString];

ant then it’s done