Display a ListBox with a List of enums

Question

Hi. I'm trying to display a ListBox inside of a GridViewColumn that needs to bind to a List of enums (List<ResourceType> Cost). The GridViewColumn's ListView is already bound to a collection of objects and I'm not really sure the best way to go about displaying the ListBox. Any suggestions?

Answer 1

You can bind the ListBox to a list of enum values. An easy way to do that is to use the markup extension I posted here.

Then, you need to bind the SelectedItem of the ListBox to the property displayed in the GridViewColumn.

You should end up with something like that :

<GridViewColumn Header="Resource type">
    <GridViewColumn.CellTemplate>
        <DataTemplate>
            <ListBox ItemsSource="{local:EnumValues local:ResourceType}"
                     SelectedItem="{Binding SelectedResourceType}">
        </DataTemplate>
    </GridViewColumn.CellTemplate>
</GridViewColumn>

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EDIT: I think I misread your question... If I understand correctly, each object displayed in the ListView has a Cost property of type List<ResourceType>, right ? (btw, the fact that ResourceType is an enum doesn't matter here). So you just need to bind the ListBox to the Cost property :

<GridViewColumn Header="Resource type">
    <GridViewColumn.CellTemplate>
        <DataTemplate>
            <ListBox ItemsSource="{Binding Cost}">
        </DataTemplate>
    </GridViewColumn.CellTemplate>
</GridViewColumn>