类型引用找不到命名类型……不是因为缺少程序集名称

Question

Just to get this clear ahead of time, I am well aware of the abundance of questions and answers regarding this error that are due to missing assembly names in the declaration, that is not the case here.

I have been seeing some pretty serious instability in the past couple days with code that would seemingly by itself stop compiling throwing errors that were untrue, then magically start working again after closing then re-opening VS, have also had my custom controls stop showing up in the designer and spit out phantom errors in the ctor() then fix themselves and dependency properties in my controls go missing from the VS properties explorer but still be accessible from XAML.... Im wondering if possibly im surfacing some sort of bug in VS, it's happened before when I discovered bugs in VS causing my g.cs files to break...

Severity Code Description Project File Line Suppression State Error Type reference cannot find type named '{clr-namespace:ODIF;assembly=PluginInterface}Global'. CustomControls_WinX86 xxxxxxxxx\\CustomControls_WinX86\\ChannelBoxMenu.xaml 17

Complete XAML for my user control:

UserControl x:Name="ChannelBoxMenuControl" x:Class="CustomControls_WinX86.ChannelBoxMenu"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:CustomControls_WinX86"
             xmlns:ODIF="clr-namespace:ODIF;assembly=PluginInterface"
             mc:Ignorable="d" 
             d:DesignHeight="100" d:DesignWidth="250">
    <Grid>
        <Menu x:Name="menu">
            <MenuItem x:Name="menuItem" BorderThickness="0" HorizontalContentAlignment="Stretch" VerticalContentAlignment="Stretch" Template="{DynamicResource MarginlessMenuItem}" Width="{Binding ActualWidth, ElementName=menu, Mode=OneWay}" Height="{Binding ActualHeight, ElementName=menu, Mode=OneWay}" >
                <MenuItem.Header>
                    <local:ChannelBox Width="{Binding ActualWidth, ElementName=menuItem, Mode=OneWay}" Height="{Binding ActualHeight, ElementName=menuItem, Mode=OneWay}" Channel="{Binding SelectedChannel, ElementName=ChannelBoxMenuControl}"/>
                </MenuItem.Header>
                <MenuItem.ItemTemplate>
                    <HierarchicalDataTemplate ItemsSource="{Binding Source={x:Static  ODIF:Global.ConnectedDevices}, Mode=OneWay}"><!--THIS IS WHERE THE ERROR IS THROWN-->
                        <StackPanel HorizontalAlignment="Left" Orientation="Horizontal">
                            <Image Source="{Binding StatusIcon}" Width="16" Height="16">
                                <Image.Style>
                                    <Style TargetType="{x:Type Image}">
                                        <Style.Triggers>
                                            <DataTrigger Binding="{Binding Icon}" Value="{x:Null}">
                                                <Setter Property="Visibility" Value="Collapsed" />
                                            </DataTrigger>
                                        </Style.Triggers>
                                    </Style>
                                </Image.Style>
                            </Image>
                            <TextBlock Text="{Binding DeviceName}"/>
                        </StackPanel>
                    </HierarchicalDataTemplate>
                </MenuItem.ItemTemplate>
            </MenuItem>
        </Menu>
    </Grid>
</UserControl>

And the relevant code from my referenced assembly:

namespace ODIF
{
    public static class Global
    {
        internal static GlobalStore Store = new GlobalStore();
        public static AsyncObservableCollection<InputDevice> ConnectedDevices
        {
            get
            {
                return Store.inputDevices;
            }
        }
    }
    internal class GlobalStore
    {
        internal AsyncObservableCollection<InputDevice> inputDevices;
    }
}

Also worth noting that when I begin typing in the path for the HierarchicalDataTemplate ItemsSource, intellisense picks up the path ODIF:Global.ConnectedDevices just fine and auto completes it, but then throws error that it cannot find it....

Answer 1

Not really an explanation as to why the above won't work, as best I can tell it should. But a workaround for me if anybody comes across the same issue is to create a static property in the UserControl's class that references the static property in the other assembly:

Added to ChannelBoxMenu : UserControl

    public static AsyncObservableCollection<ODIF.InputDevice> ConnectedDevices
    {
        get
        {
            return Global.ConnectedDevices;
        }
    }

And modified my binding to read:

ItemsSource="{Binding ConnectedDevices, ElementName=ChannelBoxMenuControl}

It's not as clean as the direct reference, but it has the benefit of working.