ObservableCollection.Contains() Doesn't Work Correctly

Question

Consider the following:

class Bind
{
    public string x { get; set; }
    public string y { get; set; }
}
public partial class MainWindow : Window
{
    pub         


        

Answer 1

Because that you have added that value set to CX:

cX.Add(new Bind { x = "a", y = "1" });

and to CY:

cY.Add(new Bind { x = "a", y = "1" });

And those are different objects.

If you want to see if a given key is present, you will need to change to a dictionary or use Linq.