How to block duplicate fields on tableview in iOS? - ios

Question

I tried load an array from web service and display on tableview, But I have a problem.
I dont want display duplicate fields on tableview.
I want display only one field on table.
Now I have :
1234
1235
1234
6544
2234
6544
e.g 1234 and 6544 have duplicate
Load Array Code :
-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes: (NSDictionary *)attributeDict
{
if ( [elementName isEqualToString:#"BranchID"] )
{
teveRetorno = YES;
}
else if ( [elementName isEqualToString:#"GetBranchResult"] )
{
myArray = [[NSMutableArray alloc] init];
}
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
{
if (teveRetorno)
{
[myArray addObject:string];
}
}
- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{
if ( [elementName isEqualToString:#"BranchID"] )
{
[[self tableView]reloadData];
}
teveRetorno = NO;
}
Table Code:
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 5;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.myArray count];
}
- (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];
}
cell.textLabel.text =[myArray objectAtIndex:indexPath.row];
cell.textLabel.adjustsFontSizeToFitWidth = YES;
[cell setAccessoryType: UITableViewCellAccessoryDisclosureIndicator];
return cell;
}

Answer 1

Remove the duplicates from the array you're using to populate the table. This can be done with:
NSOrderedSet *distinctItems = [NSOrderedSet orderedSetWithArray:self.myArray];
self.myArray = [distinctItems array];
Do this after you populate myArray from your data load and before you reload the table view.

Answer 2

This has not to do anything with tableView.
You might want to use something like this
if(![array containsObject:Value])
{
//add object to array.
}
if condition is true then only add value otherwise don't add it.

Answer 3

Deal with your datasource array.Remove the duplicate entries.Then Load data via reloadData