How to Easily Bind Enums to a WPF ComboBox?

Binding Enum to a WPF ComboBox Control

In Interface Development Environments (IDEs) such as Visual Studio, binding enums to combobox controls can present challenges. This article provides a straightforward guide to achieve this binding without additional complexities.

To display enum values directly in a combobox without using display strings, follow these steps:

From code:

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

In XAML:

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

However, for the XAML approach, an ObjectDataProvider is required to create an object available as a binding source:

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

Note the xmlns declaration:

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

This line maps namespaces and assemblies, as described in Microsoft Developer Network (MSDN) documentation. Implementing these steps will enable you to successfully bind enums to a combobox control in WPF, providing a cleaner and more straightforward approach.

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