Question

I need to display all enum values as tab items on TabControl, except one enum member (None)

enum MyEnum { Value1, Value2, Value3, None }

TabControl should display three tabs (Value1, Value2 and Value3). I need to be able to get/set current tab in the ViewModel by binding to SelectedItem property. Header for each tab uses localized enum value, which currently I do using converter.

Is this possible? I have tried many things, but could not make it work. I have no trouble with manually adding each TabItem, but I am unsure how to make SelectedItem (tab) to be of enum type.

Answer 1

I found the solution. Normally you would do this in order to get a list of enum members:

<ObjectDataProvider x:Key="SomeEnumValues"
                    MethodName="GetValues" 
                    ObjectType="{x:Type sys:Enum}">
    <ObjectDataProvider.MethodParameters>
        <x:Type TypeName="vm:SomeEnum" />
    </ObjectDataProvider.MethodParameters>
</ObjectDataProvider>

This would get all the members, so its not a way to go. I have created a custom converter that will accept enum value, and extract all members from type

// in the convert method
Type type = value.GetType();

List<object> enumValues = new List<object>();

// add each member, except None (has value of 0)
foreach (var field in type.GetFields())
{
    if (field.IsLiteral)
    {
        var x = field.GetValue(null);

        // add new value
        if ((int)x != 0)
            enumValues.Add(field.GetValue(null));
    }
}

Localization is done in the ItemTemplate. In there I also use converter (different one), where I get the localized value.

<DataTemplate x:Key="EnumItemTemplate">
    <TextBlock Text="{Binding Mode=OneWay, Converter={StaticResource enumConverter}}"/>
</DataTemplate>