StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POtableview not working - [UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance
primarykey
Id
17134270
data
AcceptedAnswerId
17134507
AnswerCount
4
ClosedDate
CommentCount
9
CommunityOwnedDate
CreationDate
2013-06-16T14:22:43.710
FavoriteCount
0
LastActivityDate
2016-04-13T06:01:24.697
LastEditDate
2013-06-16T14:38:13.323
LastEditorUserId
1157237
OwnerUserId
2487858
ParentId
0
PostTypeId
1
Score
9
ViewCount
16804
LastEditorDisplayName
text
Body
I'm trying to init a <code>uitableview</code> using <code>xib</code> but when I run the app in simulator, the below exception is thrown. <pre><code>2013-06-16 10:40:48.552 CoreDataExample[60661:c07] -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x81765a0 2013-06-16 10:40:48.554 CoreDataExample[60661:c07] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x81765a0' </code></pre> Below the steps that i have followed trying to start the tableview: <ol> <li>Add <code>UITableViewDelegate</code> and <code>UITableViewDataSource</code> in my <code>viewController</code>.</li> <li>Insert the <code>tableview</code> into a view in my <code>viewController.xib</code>.</li> <li>Create <code>datasource</code> and <code>delegate</code> in it files's owner (pressing control key and draging the mouse's arrow from component to file's owner and selecting the option delegate for example).</li> <li>Implement the methods <code>- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section</code> and <code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath</code> in my <code>viewController.m</code>.</li> </ol> Below the implemetation of two methods: <pre><code>- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ return 10; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{ UITableViewCell *cell = nil; static NSString *identifier = @"identifier"; cell = [tableView dequeueReusableCellWithIdentifier:identifier]; if(cell == nil){ cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifier]; } cell.textLabel.text = @"Olá"; cell.detailTextLabel.text = @"Subtitle" ; [cell setAccessoryType:UITableViewCellAccessoryDetailDisclosureButton]; return cell; } </code></pre> ViewController.h below: <pre><code>@interface CDEMainViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath; - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section; @end </code></pre>
Tags
<ios><objective-c><xcode><uitableview><xib>
Title
tableview not working - [UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USgcbenison
UserOwnerUserId
1. USAlessandro Garcez
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
3. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POtableview not working - [UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTApproveEditSuggestion
CommentsPostId

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.