Refresh table view?

I think I have a pretty easy task, but somehow it doesn't want to work. I am a total beginner in objective-c, so I guess it's just a small mistake. I still don't really know what I do, currently it's more like copy&paste programming. Like I don't really know if I need the IBOutlet in the interface or as a property or as both. What I have: A ViewController with a Button, a Label and a Table View. The button connects to a sharepoints server and reads a list and adds the value to an array. This part works. Delegate and DataSource outlet is connected to the View Controller. What I want: The array should be the datasource of the Table View, so I just want it to refresh after I've read the new data in the array. The test data I add in the viewDidLoad function to the array, shows up. So I guess I somehow connected the array to the table view. I'll give you the full code: ViewController.h: ``` #import <UIKit/UIKit.h> @interface ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource> { IBOutlet UILabel *output; IBOutlet UITableView *tableView; NSMutableData *webData; NSString *finaldata; NSString *convertToStringData; NSMutableString *nodeContent; } @property (nonatomic, retain) UILabel *output; @property (nonatomic, weak) IBOutlet UITableView *tableView; -(IBAction)invokeService:(UIButton *) sender; @end ``` ViewController.m: ``` #import "ViewController.h" @interface ViewController () { NSMutableArray *foundUrlaub; } @end @implementation ViewController @synthesize output; - (void)viewDidLoad { [super viewDidLoad]; // SOME TEST DATA... THIS SHOWS UP IN MY TABLE VIEW foundUrlaub = [[NSMutableArray alloc]init]; [foundUrlaub addObject:@"first cell"]; [foundUrlaub addObject:@"second cell"]; [foundUrlaub addObject:@"third cell"]; } -(IBAction)invokeService:(UIButton *) sender { // connection to sharepoint } -(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { NSLog(@"didReceiveResponse"); [webData setLength:0]; } -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { NSLog(@"didReceiveData"); [webData appendData:data]; } -(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { NSLog(@"ERROR with the Connection"); NSLog(error.description); } -(BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace { NSLog(@"canAuthenticateAgainstProtectionSpace"); return YES; } -(void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge { NSLog(@"didReceiveAuthenticationChallenge"); NSURLCredential *credential = [NSURLCredential credentialWithUser:@"XXXXXX" password:@"XXXXXX" persistence:NSURLCredentialPersistenceForSession]; [[challenge sender] useCredential:credential forAuthenticationChallenge:challenge]; } -(void)connectionDidFinishLoading:(NSURLConnection *)connection { NSLog(@"DONE. Received Bytes: %d", [webData length]); convertToStringData = [[NSString alloc] initWithData:webData encoding:NSUTF8StringEncoding]; NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"(?<=ows_Title=')(.*)(?=' ows_MetaInfo)" options:0 error:NULL]; NSArray *matches = [regex matchesInString:convertToStringData options:0 range:NSMakeRange(0, [convertToStringData length])]; // HERE I LOAD SOME DATA IN THE ARRAY [foundUrlaub removeAllObjects]; for (NSTextCheckingResult *match in matches) { NSRange matchRange = [match rangeAtIndex:1]; NSString *matchString = [convertToStringData substringWithRange:matchRange]; NSLog(@"Match: %@", matchString); [foundUrlaub addObject:matchString]; // <- ADDS 3 STRINGS TO ARRAY } // THIS DOES NOT WORK! [tableView reloadData]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [foundUrlaub count]; } -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *simpleTableIdentifier = @"TableItem"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier]; } cell.textLabel.text = [foundUrlaub objectAtIndex:indexPath.row]; return cell; } @end ```