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POXcode: Displaying Data in Tables
 

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    <p>Hello I am relatively new to the programming scene and have been using lynda.com to learn the skill and practice on small projects. I followed the instructors guidance to the letter, but our results are quite different. I want the "name" string of my course in my NSMutable Array to appear as the titles of the cells in my table but when I load the app nothing appears. Help a clueless kid out please!</p> <p>here is the code for my class, the implementation file just includes the synthesization for my properties </p> <pre><code>#import "Class.h" @implementation Course @synthesize name,teacher,room; @end </code></pre> <p>and here is the code for my UITable view controller class</p> <pre><code>#import "ScheduleTableViewController.h" @interface ScheduleTableViewController () @end @implementation ScheduleTableViewController NSMutableArray *classes; - (id)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { NSMutableArray *classes = [[NSMutableArray alloc]init]; Course *class = [[Course alloc]init]; [class setName:@"AP Psychology"]; [class setRoom:@"E203"]; [class setTeacher:@"Juiliette Forbes"]; [classes addObject:class]; [class setName:@"AP Literature"]; [class setTeacher:@"Kristen Holtz"]; [class setRoom:@"E207"]; [classes addObject:class]; [class setName:@"AP Physics"]; [class setTeacher:@"Peter Dalby"]; [class setRoom:@"D205"]; [classes addObject:class]; [super viewDidLoad]; } - (void)viewDidUnload { [super viewDidUnload]; } - (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } #pragma mark - Table view data source - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [classes count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"ClassCell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } Course *current = [classes objectAtIndex:indexPath.row]; [cell.textLabel setText:[current name]]; return cell; } </code></pre> <p>Any help will be well appreciated and hopefully I can keep up with any of the lingo</p>
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    1. USGabriele Petronella
    1. USHammy
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    1. COThis part of your code doesn't look right. `#import "Class.h" @implementation Course @synthesize name,teacher,room; @end` import Class.h and implementation Course? Also, you need to set your table view's **data source**, apart from delegate.
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      1. USesh
    2. COPlease remove the redeclaration datasource array classes from viewdidLoad(), your code will work perfect.
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      1. USVinodh
    3. COthe file is called class.h but I had to change the name of class from "class" because that was conflicting with some of the foundation coding so I changed it to "course". As for the redeclaration of the datasource I am afraid I don't actually know what that is is it possible you could highlight that for me? Sorry as I said I am kinda new
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      1. USHammy
 

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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.

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.

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