Databases
StackOverflow2013
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PO
 

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  1. PO
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    <p>It looks to me that you have a partially visible switch case where it is returning a cell for case 1. Your error makes me think you are returning a null <code>UITableViewCell</code> some branch in your switch case.</p> <p>Make sure all paths out of that switch case return a valid <code>UITableViewCell</code> object.</p> <p>What are you returning for case 0? In other words, what are you returning for the first row that the UITableView requests?</p> <p>Here is a sample of code from one of my projects, It might give you a good starting point to see where you are going wrong:</p> <pre><code>- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } NSInteger section = [indexPath section]; switch (section) { case 0: // First cell in section 1 cell.textLabel.text = [collectionHelpTitles objectAtIndex:[indexPath row]]; break; case 1: // Second cell in section 1 cell.textLabel.text = [noteHelpTitles objectAtIndex:[indexPath row]]; break; case 2: // Third cell in section 1 cell.textLabel.text = [checklistHelpTitles objectAtIndex:[indexPath row]]; break; case 3: // Fourth cell in section 1 cell.textLabel.text = [photoHelpTitles objectAtIndex:[indexPath row]]; break; default: // Do something else here if a cell other than 1,2,3 or 4 is requested break; } return cell; } </code></pre>
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    1. This table or related slice is empty.
    1. POUITableView Problems with cellForRowAtIndexPath
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    1. USBrock Woolf
    1. USBrock Woolf
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    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.
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      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
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      1. This table or related slice is empty.
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    3. VO
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      1. This table or related slice is empty.
      1. VTUpMod
    1. CO+1 As you say, almost certainly the code is missing the default: case or is otherwise returning nil on some code path.
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      1. USRob Napier
    2. COplease help me to understand why do we give if(cell == nil) if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease]; } Because if cell == nil or if(!cell), it will never go into the condition to create a cell.
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      1. PO
      1. USDeepak Thakur
    3. COIf i am having 1000 value coming from database then in this case do i have to write 1000 case??
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      1. USHussain Shabbir
 

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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.

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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.

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