Duplicates in list

Question

For some reason, I get duplicate data, and I know that every city name I get in return has a different name.

code https://github.com/eduardoagr/Travel

Answer 1

Hi,@Eduardo Gomez . You could refer to the code as follows.

  private async void GetAirportList()  
    {  
        var temppList = await Services.GetAirportsAsync();  
  
        //var tempObservable = new ObservableCollection<Airport>();  
        var tempObservable1 = new ObservableCollection<Airport>();  
        //foreach (var item in temppList!)  
        //{  
  
        //    if (!tempObservable.Contains(item))  
        //    {  
                  
        //        tempObservable.Add(item);  
        //    }  
             
        //}  
        var newItems = temppList.Where(x => !tempObservable1.Any(y => x.city == y.city));  
        foreach (var item in newItems!)  
        {  
  
            if (!tempObservable1.Contains(item))  
            {  
  
                tempObservable1.Add(item);  
            }  
  
        }  
  
        //AirportsList = tempObservable;  
        AirportsList = tempObservable1;  
         
    }  

The result:

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