Add values to ListView without repeating them-CodePudding

How about I have a problem with a ListView I am using C# with Xamarin Forms and I don't know how to add values to the ListView without repeating them, I hope you can help me greetings.

I haven't tried anything yet

InventoryPerRowModel.Add(new InventoryPerRow { IntRow = Convert.ToInt32(Row.Text), IntPlants = Convert.ToInt32(TotalPlants.Text), IntPlantsUnusable = Convert.ToInt32(PlantsUnusable.Text) });

var InventoryPorSurcoModelOrdenado = InventoryPorSurcoModel.OrderBy(x => x.IntSurco).ToList(); MyListView.ItemsSource = InventoryByPathSortedModel;

CodePudding user response：

if your data looks like this

ObservableCollection<int> myData = new ObservableCollection<int>();

myData.Add(1);
...
myData.Add(10);

myListView.ItemsSource = myData;

then when you want to add a new value

private void AddToList(int i)
{

   if (myData.Contains(i))
   {
      // already in the list, throw an error
   }
   else 
   {
     myData.Add(i);
   }
}

CodePudding user response：

Best way - use ObservableCollection (Jasons answer).
Is not well, but working:

var InventoryPorSurcoModelOrdenado = InventoryPorSurcoModel  
    .OrderBy(x => x.IntSurco)  
    .Distinct() 
    .ToList();