Question

I would like to implement a usercontrol which gets a enumtype via XAML code. Now is the question how do I implement a property which can receive a DataType. What I’ve tried so far is the following:

Code Behind:

public partial class Test : UserControl, INotifyPropertyChanged
{
       #region DependencyProperty: EnumType
        public Type EnumType
        {
            get
            {
                return (Type)GetValue(EnumTypeProperty);
            }
            set
            {
                SetValue(EnumTypeProperty, value);                
            }
        }

        public static readonly DependencyProperty EnumTypeProperty =
            DependencyProperty.Register("EnumType", typeof(Type), typeof(Test),
            new FrameworkPropertyMetadata());
        #endregion
}

And in XAML I tried this:

…

<Grid>
        <local:Test EnumType="{x:Type local:TestEnum}" />
</Grid>

…

The TestEnum:

public enum TestEnum
{
    eins,
    zwei,
    drei
}

But that does not work. It seems that the EnumType property is never set.

Has anyone any idea on how to do that right?

Answer 1

Try

public static DependencyProperty EnumValueProperty = DependencyProperty.Register("EnumValue", typeof(TestEnum), typeof(Test), new PropertyMetadata(null));

    public TestEnum EnumValue
    {
        get { return (TestEnum)GetValue(EnumValueProperty); }
        set { SetValue(EnumValueProperty, value); }
    }

<local:Test EnumValue="eins"/>

I’m not sure why you were using Type as your property type, just use the TestEnum Type.

Do you get any build errors? I often find that sometimes intellisense fails in the XAML editor until I’ve built the control again, can be a red herring.

EDIT

Apologies, I got the complete wrong end of the stick, I managed to get your code to compile and run, however I don’t get to see the enum type as a valid type in intellisense.