如何将枚举绑定到 ComboBox 并在 C# 中隐藏某个值

Question

I have an enum in the form of:

public enum BlueOrRed { None, Blue, Red}

Currently I am binding that to a ComboBox in Code because the binding is dependent on a selection in another ComboBox:

if (OtherComboBox.SelectedItem == Color.BlueOrRed)
{
    ThisComboBOx.ItemsSource = Enum.GetValues(typeof(BlueOrRed));
}
else ...

I need the option, that BlueOrRed could also be None in the code behind. But I don't want to display that option in the ComboBox.

I am aware of a similar Question , but that answer unfortunately doesn't really aplly to my problem.

Answer 1

The GetValues method will return all of these constants as an array. Instead create a custom list.

ThisComboBOx.ItemsSource = new List<BlueOrRed> {BlueOrRed.Blue, BlueOrRed.Red};

If you do not want to create the list yourself, you can also exclude the None constant using Linq.

ThisComboBOx.ItemsSource = ((BlueOrRed[]) Enum.GetValues(typeof(BlueOrRed))).Except(new[] { BlueOrRed.None });