prepareForSegue is not called from UITableViewController - ios6

Question

I have started iOS app development recently.
I have a problem about segue from UITableViewController to UIViewController.
"prepareForSegue" is not called when a tablecell is clicked.
It seems to me that the code and interface builder settings are fine.
Segue ID is properly set. I also embedded UITableVC in navigationVC, too.
I set the breakpoint in the prepareForSegue, but it does not stop there and no log is generated.
Through researching tips in the Internet, I understand that using didSelectRowAtIndexPath is one of the solutions for my problem.
But I would like to understand the solution by using storyboard.
This might be a basic question, but if someone could give me some tips, it could be very helpful.
thank you,
#interface test2TVC ()
#property(strong,nonatomic) NSArray *items;
#end
#implementation test2TVC
- (void)viewDidLoad
{
[super viewDidLoad];
self.items = #[#"item1", #"item2", #"item3", #"item4",
#"item5", #"item6", #"item7", #"item8"];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
NSLog(#"test log");
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.items count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:#"Cell"];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
cell.textLabel.text = [self.items objectAtIndex:indexPath.row];
return cell;
}
#end

Answer 1

When I use:
[self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:CellIdentifier];
in viewDidLoad
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath] in cellForRowAtIndexPath
prepareForSegue will not be called.
When I remove registerClass line in viewDidLoad, and
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
in cellForRowAtIndexPath, prepareForSegue will be called, other setting are all same.

Answer 2

Make sure that you have embedded navigation controller your UITableViewController in Mainstoryboard. or try to embed navigation controller in rootViewController of your project. Then set reuse identifier in tableviewcell. Any problem the please share it.