Viewcontroller length unrecognized selector sent to instance in iphone - iphone

Question

My application crashing ans showing following in console. How to remove this exception???
2011-11-25 17:47:56.519 ShowroomLocator[1482:707] -[ShowroomLocatorViewController length]: unrecognized selector sent to instance 0x164860
2011-11-25 17:47:56.541 ShowroomLocator[1482:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '- [ShowroomLocatorViewController length]: unrecognized selector sent to instance 0x164860'
*** Call stack at first throw:
(
0 CoreFoundation 0x308aa64f __exceptionPreprocess + 114
1 libobjc.A.dylib 0x3400bc5d objc_exception_throw + 24
2 CoreFoundation 0x308ae1bf -[NSObject(NSObject) doesNotRecognizeSelector:] + 102
3 CoreFoundation 0x308ad649 ___forwarding___ + 508
4 CoreFoundation 0x30824180 _CF_forwarding_prep_0 + 48
5 UIKit 0x35dcfed1 - [UITableView(UITableViewInternal) _delegateWantsHeaderForSection:] + 228
6 UIKit 0x35dcf2db -[UISectionRowData refreshWithSection:tableView:tableViewRowData:] + 78
7 UIKit 0x35dcf225 -[UITableViewRowData numberOfRows] + 72
8 UIKit 0x35dcec73 -[UITableView noteNumberOfRowsChanged] + 82
9 UIKit 0x35dce7f7 -[UITableView reloadData] + 582
10 HettichShowroomLocator 0x00003487 - [ShowroomLocatorViewController viewWillAppear:] + 50
11 UIKit 0x35dbf1d9 -[UIViewController viewWillMoveToWindow:] + 64
12 UIKit 0x35d9e179 -[UIView(Hierarchy) _willMoveToWindow:withAncestorView:] + 132
13 UIKit 0x35d83a59 -[UIView(Internal) _addSubview:positioned:relativeTo:] + 228
14 UIKit 0x35d8396b -[UIView(Hierarchy) addSubview:] + 22
15 UIKit 0x35db335f -[UIWindow addRootViewControllerViewIfPossible] + 202
16 UIKit 0x35daf333 -[UIWindow _setHidden:forced:] + 182
17 UIKit 0x35db328f -[UIWindow _orderFrontWithoutMakingKey] + 18
18 UIKit 0x35dc1c61 -[UIWindow makeKeyAndVisible] + 16
19 ShowroomLocator 0x0000285b - [ShowroomLocatorAppDelegate application:didFinishLaunchingWithOptions:] + 162
20 UIKit 0x35db3821 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 772
21 UIKit 0x35dadb65 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 272
22 UIKit 0x35d827d7 -[UIApplication handleEvent:withNewEvent:] + 1114
23 UIKit 0x35d82215 -[UIApplication sendEvent:] + 44
24 UIKit 0x35d81c53 _UIApplicationHandleEvent + 5090
25 GraphicsServices 0x35a56e77 PurpleEventCallback + 666
26 CoreFoundation 0x30881a97 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 26
27 CoreFoundation 0x3088383f __CFRunLoopDoSource1 + 166
28 CoreFoundation 0x3088460d __CFRunLoopRun + 520
29 CoreFoundation 0x30814ec3 CFRunLoopRunSpecific + 230
30 CoreFoundation 0x30814dcb CFRunLoopRunInMode + 58
31 UIKit 0x35dacd49 -[UIApplication _run] + 372
32 UIKit 0x35daa807 UIApplicationMain + 670
33 ShowroomLocator 0x0000278b main + 70
34 ShowroomLocator 0x00002740 start + 40
)
terminate called after throwing an instance of 'NSException'
Program received signal: “SIGABRT”.
warning: Unable to read symbols for /Developer/Platforms/iPhoneOS.platform/DeviceSupport/4.3.2 (8H7)/Symbols/Developer/usr/lib/libXcodeDebuggerSupport.dylib (file not found).
(gdb)
After adding SearchDisplayController with _tableview1 my application started crashing.
I have two tableview in same controller class. Pleas suggest something to handle this...
Edited with multiple tableview coding:
- (void)viewDidLoad {
appDelegate = (ShowroomLocatorAppDelegate *)[[UIApplication sharedApplication] delegate];
NSArray *items = [[NSArray alloc] initWithObjects:
#"Sydney Airport (SYD), Mascot NSW 2020, Australia",
#"Sydney NSW, Australia'",
#"Smithfield NSW 2164, Australia",
#"Smithfield SA 5114, Australia",
#"Smithfield QLD 4878, Australia",
nil];
self.allItems = items;
[items release];
self._tableView1.scrollEnabled = YES;
_tableView1.hidden = YES;
_tableView.hidden = YES;
[self._tableView reloadData];
self._tableView.rowHeight = 80.0;
[ self.view addSubview:_tableView] ;
_tableView.delegate = self;
_tableView.dataSource = self;
_tableView1.delegate = self;
_tableView1.dataSource = self;
}
- (void)viewWillAppear:(BOOL)animated
{
[self._tableView reloadData];
[self._tableView1 reloadData]; }
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
if(tableView ==_tableView && tableView ==_tableView1 )
{
return 1;
}
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
if(tableView ==_tableView )
{
if(section == 0)
return [NSString stringWithFormat:NSLocalizedString(#"ShowRooms[%d]", #"Showroom format"), [appDelegate.markers count]];
}
}
// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableview numberOfRowsInSection:(NSInteger)section {
if(tableview ==_tableView )
{
return [appDelegate.markers count];
}
if(tableview ==_tableView1 )
{ NSInteger rows = 0;
if ([_tableView1
isEqual:self.searchDisplayController.searchResultsTableView]){
rows = [self.searchResults count];
}
else{
rows = [self.allItems count];
}
return rows;
}
}
In my _tableview web-service data get fill and _tableview1 array data with address get fill.....
The above error is coming on adding _tableview1.....

Answer 1

I suspect, in viewWillAppear, you did a reloadData specifying self rather than self.tableView.