cellForRowAtIndexPath is not called? - ios

Question

My cellForRowAtIndexPath does not fire everytime
I set dataSource and delegate to the file owner.
I also set referencing outlet.
I also try tbl.delegate=self; and tbl.datasource=self; but it does not work.
What can I do?
-(void)load
{
[name resignFirstResponder];
[salary resignFirstResponder];
name.text=#"";
salary.text=#"";
[tblViewController.data removeAllObjects];
NSString *insertStatement = [NSString stringWithFormat:#"select * from emp"];
sqlite3_stmt *statement;
NSString *path= [self getDBPath];
if (sqlite3_open([path UTF8String], &db) == SQLITE_OK)
{
if (sqlite3_prepare_v2(db, [insertStatement UTF8String], -1,&statement, NULL) == SQLITE_OK)
{
while (sqlite3_step(statement) == SQLITE_ROW)
{
NSMutableDictionary *record=[[NSMutableDictionary alloc]init];
NSString *nm= [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement,0)];
NSString * sl= [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement,1)];
[record setValue:nm forKey:#"name"];
[record setValue:sl forKey:#"salary"];
NSLog(#"%# %#",nm,sl);
[tblViewController.data addObject:record];
NSLog(#"%#",tblViewController.data);
}
sqlite3_finalize(statement);
}
sqlite3_close(db);
}
NSLog(#"%lu",(unsigned long)[tblViewController.data count]);
[tblViewController.tbl reloadData];
}
//This code is of tableviewcontroller.m
#import "tableViewController.h"
#import "ViewController.h"
#interface tableViewController ()
#end
#implementation tableViewController
#synthesize tbl,data;
#synthesize viewOfTable;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
NSLog(#"only for check");
[self setup];
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
//[self setup];
tbl.delegate = self;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-( NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-( NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [data count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc]
initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier];
}
cell.textLabel.text=[[data objectAtIndex:indexPath.row] valueForKey:#
"name"];
cell.detailTextLabel.text=[[data objectAtIndex:indexPath.row]
valueForKey:#"salary"];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
//name.text =[[data objectAtIndex:indexPath.row] valueForKey:#"name"];
// salary.text=[[data objectAtIndex:indexPath.row] valueForKey:#"salary"];
}
- (void)setup
{
//Store the whole view in uiView...mac
// [[NSBundle mainBundle] loadNibNamed:#"RegistrationViewController" owner:self options:nil];
viewOfTable=[[UIView alloc]initWithFrame:self.view.frame];
[viewOfTable addSubview:self.view];
self.viewOfTable.translatesAutoresizingMaskIntoConstraints=YES;
}
Please solve my problem.
You didn't get anything then please tell me.

Answer 1

You need to set Table DataSource in order to tableView to construct table rows.
#import "tableViewController.h"
#import "ViewController.h"
#interface tableViewController () <UITableViewDataSource,UITableViewDelegate>
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
tbl.dataSource = self
tbl.delegate = self;
}

Answer 2

Or you can check if you have a fault in your data array, because if its size is 0, there are no rows in a section and no cells within these rows as well and cellForRowAtIndexPath is never called...

Answer 3

You should set dataSource and delegate. When you do this, check tbl. Maybe it nil?
If not check what value returns
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
If you implement
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
check it.
No more options.