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POError when populating table view with coredata
 

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  1. POError when populating table view with coredata
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    <p>I am working with coredata and successfully saved the data in data storage but when I try to output what I stored using table view ,I am not able to do it.</p> <p>Here the user will enter and click save ..so when he goes back..I want the table to populated with what name he or she has entered.</p> <p>So I wrote the below code for saving and find data:</p> <pre><code>- (void) saveData { coredata123AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; NSManagedObjectContext *context = [appDelegate managedObjectContext]; Contacts *newContact; newContact = [NSEntityDescription insertNewObjectForEntityForName:@"Contacts" inManagedObjectContext:context]; [newContact setValue:name.text forKey:@"name"]; [newContact setValue:address.text forKey:@"address"]; [newContact setValue:phone.text forKey:@"phone"]; name.text = @""; address.text = @""; phone.text = @""; NSError *error; [context save:&amp;error]; status.text = @"Contact saved"; } - (void) findContact { coredata123AppDelegate *appDelegate = [[UIApplication sharedApplication] delegate]; NSManagedObjectContext *context = [appDelegate managedObjectContext]; NSEntityDescription *entityDesc = [NSEntityDescription entityForName:@"Contacts" inManagedObjectContext:context]; NSFetchRequest *request = [[NSFetchRequest alloc] init]; [request setEntity:entityDesc]; NSPredicate *pred = [NSPredicate predicateWithFormat:@"(name = %@)", name.text]; [request setPredicate:pred]; NSManagedObject *matches = nil; NSError *error; NSArray *objects = [context executeFetchRequest:request error:&amp;error]; for(Contacts *info in objects) { NSLog(@"Name:%@",info.name); NSLog(@"Address:%@",info.address); } if ([objects count] == 0) { status.text = @"No matches"; } else { matches = [objects objectAtIndex:0]; address.text = [matches valueForKey:@"address"]; phone.text = [matches valueForKey:@"phone"]; status.text = [NSString stringWithFormat: @"%d matches found", [objects count]]; } [request release]; } </code></pre> <p>And to populate the table view i have written this code..</p> <pre><code>- (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Contacts" inManagedObjectContext:context]; [fetchRequest setEntity:entity]; NSError *error; self.contacts = [context executeFetchRequest:fetchRequest error:&amp;error]; [fetchRequest release]; } - (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]; } Contacts *info =[contacts objectAtIndex:indexPath.row]; cell.textLabel.text =info.name; cell.detailTextLabel.text=info.address; // Configure the cell... return cell; } </code></pre>
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    1. This table or related slice is empty.
    1. PTQuestion
    1. USgideon
    1. USRanjit
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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.
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    1. This table or related slice is empty.
    1. COhello friends please reply.......m waiting
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      1. POError when populating table view with coredata
      1. USRanjit
 

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