Question

I need to remove an item from an ObservableCollection by itself.
Is it possible doing something like this?

public class Item
{
    public Item()
    {
         // Constructor
    }

    public string ID
    {
         get;
         set;
    }

    public void Remove()
    {
         // I need to write some code here if it is possible
    }
}

//---------- this part is in a ClickEvent i.e.

ObservableCollection<Item> Items = new ObservableCollection<Item>();

Item _Item = new Item() { ID = 1 }

Items.Add(_Item);

_Item.Remove()

Note: I don’t want to use Items.Remove(_Item) method.

Thank you…

Answer 1

All you need is for each Item to have a reference to its owner ObserableCollection

Then you can do

void Remove()
{
   Owner.Remove(this);
}

void AddToCollection( ObserableCollection<Item> list )
{
  Owner = list;
  Owner.Add(this);
}

You will also have to handle cases where items are added multiple collection.