How to Bind Enums to WPF ComboBox Controls?

Binding Enums to WPF ComboBox Controls

When attempting to display enum values as items in a ComboBox, binding directly from the DataContext may not suffice. To address this, we present two approaches to solve this issue: through code and XAML binding.

Code-Based Binding

In the Window's Loaded event handler, execute the following code:

yourComboBox.ItemsSource = Enum.GetValues(typeof(EffectStyle)).Cast<EffectStyle>();

This retrieves the enum values and assigns them as the ComboBox's items source.

XAML Binding

For XAML binding, employ an ObjectDataProvider:

<ComboBox ItemsSource="{Binding Source={StaticResource dataFromEnum}}"
                  SelectedItem="{Binding Path=CurrentEffectStyle}" />

Within the Window's Resources section, define the ObjectDataProvider:

<ObjectDataProvider x:Key="dataFromEnum" MethodName="GetValues"
                            ObjectType="{x:Type System:Enum}">
            <ObjectDataProvider.MethodParameters>
                <x:Type TypeName="StyleAlias:EffectStyle"/>
            </ObjectDataProvider.MethodParameters>
        </ObjectDataProvider>

Remember to declare the necessary namespaces:

xmlns:System="clr-namespace:System;assembly=mscorlib"
xmlns:StyleAlias="clr-namespace:Motion.VideoEffects"

These methods provide simple and effective ways to bind enums to ComboBox controls in WPF.

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