Crash attempting to set delegate of textfield - ios

Question

I have a lot of textfields and what I am trying to make them do is dismiss when the return key is used. In order for this to work you need to set the delegate of each textfield to self, like this [textfield setDelegate: self];. I have over 50 textfields in my project and in order to make it so they all dismiss I have to copy that line of code for each textfield. In the example below I used a for loop to try to shrink this down, but my project crashes and gives me this error when I try. Can someone tell me what im doing wrong and how i can fix this?
//.h
#interface InsertScheduleCGPS : UIViewController <UITextFieldDelegate>{
NSArray *Dayh;
IBOutlet UITextField *Day11;
}
#property(nonatomic, assign) id<UITextFieldDelegate> delegate;
#property (nonatomic,strong) NSArray *Dayh;
.
//.m
- (void)viewDidLoad
{
[super viewDidLoad];
Dayh = [NSArray arrayWithObjects:#"Day11", nil];
NSLog(#"euf");
for(int i=0; i<[self.Dayh count]; i++) {
NSLog(#"dd%#",[self.Dayh objectAtIndex:i]);
[[self.Dayh objectAtIndex:i] setDelegate: self];
}
- (BOOL)textFieldShouldReturn:(UITextField *)Day11 {
[[self view] endEditing:YES];
return NO;
}
ERROR:
2014-01-18 19:15:26.712 Swepple[64912:70b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFConstantString setDelegate:]: unrecognized selector sent to instance 0x144ec'
*** First throw call stack:
(
0 CoreFoundation 0x0183b5e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x015be8b6 objc_exception_throw + 44
2 CoreFoundation 0x018d8903 -[NSObject(NSObject) doesNotRecognizeSelector:] + 275
3 CoreFoundation 0x0182b90b ___forwarding___ + 1019
4 CoreFoundation 0x0182b4ee _CF_forwarding_prep_0 + 14
5 Swepple 0x0000bbd6 -[InsertScheduleCGPS viewDidLoad] + 4262
6 UIKit 0x00440318 -[UIViewController loadViewIfRequired] + 696
7 UIKit 0x004405b4 -[UIViewController view] + 35
8 UIKit 0x0044f361 -[UIViewController viewControllerForRotation] + 63
9 UIKit 0x00446f00 -[UIViewController _visibleView] + 84
10 UIKit 0x006d511a -[UIWindowController transition:fromViewController:toViewController:target:didEndSelector:animation:] + 5199
11 UIKit 0x0044c0fc -[UIViewController presentViewController:withTransition:completion:] + 6433
12 UIKit 0x0044c61f -[UIViewController presentViewController:animated:completion:] + 130
13 UIKit 0x0044c65f -[UIViewController presentModalViewController:animated:] + 56
14 UIKit 0x00870e16 -[UIStoryboardModalSegue perform] + 271
15 UIKit 0x0086107e -[UIStoryboardSegueTemplate _perform:] + 174
16 UIKit 0x00442280 -[UIViewController performSegueWithIdentifier:sender:] + 72
17 Swepple 0x000052d4 -[SecondViewController insert:] + 244
18 libobjc.A.dylib 0x015d0874 -[NSObject performSelector:withObject:withObject:] + 77
19 UIKit 0x0032e0c2 -[UIApplication sendAction:to:from:forEvent:] + 108
20 UIKit 0x0032e04e -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 61
21 UIKit 0x004260c1 -[UIControl sendAction:to:forEvent:] + 66
22 UIKit 0x00426484 -[UIControl _sendActionsForEvents:withEvent:] + 577
23 UIKit 0x00425733 -[UIControl touchesEnded:withEvent:] + 641
24 UIKit 0x0036b51d -[UIWindow _sendTouchesForEvent:] + 852
25 UIKit 0x0036c184 -[UIWindow sendEvent:] + 1232
26 UIKit 0x0033fe86 -[UIApplication sendEvent:] + 242
27 UIKit 0x0032a18f _UIApplicationHandleEventQueue + 11421
28 CoreFoundation 0x017c483f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
29 CoreFoundation 0x017c41cb __CFRunLoopDoSources0 + 235
30 CoreFoundation 0x017e129e __CFRunLoopRun + 910
31 CoreFoundation 0x017e0ac3 CFRunLoopRunSpecific + 467
32 CoreFoundation 0x017e08db CFRunLoopRunInMode + 123
33 GraphicsServices 0x037e09e2 GSEventRunModal + 192
34 GraphicsServices 0x037e0809 GSEventRun + 104
35 UIKit 0x0032cd3b UIApplicationMain + 1225
36 Swepple 0x0000e04d main + 141
37 libdyld.dylib 0x01d7c70d start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)

Answer 1

You probably meant
Dayh = [NSArray arrayWithObjects:Day11, nil];
At present, Dayh is an array containing the string "Day11", not the text field.