Databases
StackOverflow2013
Postsdbo
POUITableView reloadData does not cause table cells to show new data
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POUITableView reloadData does not cause table cells to show new data
    primarykey
    data
    text
    <p>When I update my data structures that fuel the UITableView, I call reladData. However, when I present my UITableView, the new values are not shown. Only the first time, the values are shown. Subsequently, when the new values are updated, the UITableView shows the old values still. I do not see the cellForRowAtIndexPath getting called. How do I get my new data to show?</p> <p>Here is the code:</p> <pre><code>@implementation MyViewController @synthesize tableView; @synthesize maxEntries, selectedIndex; @dynamic names, quotes; // used pressed the "Done" button - (IBAction)done { selectedIndex = -1; [self dismissModalViewControllerAnimated:YES]; } - (void)viewWillAppear:(BOOL)animated { selectedIndex = -1; [tableView reloadData]; } // Customize the number of rows in the table view. - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return maxEntries; } - (int)getSelectedIndex { return selectedIndex; } - (void)resetSelectedIndex { selectedIndex = -1; } - (void)tableView: (UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath { selectedIndex = indexPath.row; [self dismissModalViewControllerAnimated:YES]; } // Customize the appearance of table view cells. - (UITableViewCell *)tableView:(UITableView *)table cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *kPlacemarkCellID = @"GrapeCell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:kPlacemarkCellID]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:kPlacemarkCellID] autorelease]; } CGRect frame = cell.textLabel.frame; frame.size.width = 200; cell.textLabel.frame = frame; if ((int)indexPath.row &lt; maxEntries) { if (names[indexPath.row] != nil) { cell.detailTextLabel.text = names[indexPath.row]; } else { cell.textLabel.text = @"..."; } if (quotes[indexPath.row] != nil) { cell.textLabel.text = quotes[indexPath.row]; } else { cell.detailTextLabel.text = @"..."; } } else { cell.textLabel.text = @""; cell.detailTextLabel.text = @""; } return cell; } - (void)addEntry: (NSString *)name withQuote:(NSString *)quote { if (maxEntries &lt; MAX_ENTRIES) { names[maxEntries] = [name copy]; quotes[maxEntries] = [quote copy]; maxEntries++; [tableView reloadData]; } } - (void) clearEntries { maxEntries = 0; selectedIndex = -1; [tableView reloadData]; } - (void)viewDidUnload { self.tableView = nil; } - (void)dealloc { [tableView release]; [super dealloc]; } @end </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USDeShawnT
    1. USDeShawnT
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COcan you post some your codes?
      singulars
      1. POUITableView reloadData does not cause table cells to show new data
      1. USAravindhan
    2. COOk I just updated my original post
      singulars
      1. POUITableView reloadData does not cause table cells to show new data
      1. USDeShawnT
    3. COCheck if `tableView` is connected. That's the most likely error here.
      singulars
      1. POUITableView reloadData does not cause table cells to show new data
      1. USDeepak Danduprolu
 

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.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload