Просмотреть локальный: "UserControl" в ColumnDefinition (2)

Question

Я хочу просмотреть UserControl внутри ColumnDefinition (2)

MainWindow.xaml:

<Grid Margin="0,0,0,0">
    <local:DockPanelTop />
    <local:DockPanelBtm />

    <Grid Margin="5,45,5,25" x:Name="MainGrid" x:FieldModifier="public">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="200" MaxWidth="400" MinWidth="0" x:Name="MainMenu" x:FieldModifier="public" />
            <ColumnDefinition Width="5" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>

        <Rectangle Grid.Column="0" Fill="AliceBlue" />
        <GridSplitter HorizontalAlignment="Stretch" Background="#FFFF7E7E" Grid.Column="1" />
        <Rectangle Grid.Column="2" Fill="AntiqueWhite" />

        【"View this into ColumnDefinition(2)"<local:TreeView />】

    </Grid>

Спасибо.

Answer 1

Мой ответ:

<local:TreeView Grid.Column="2"/>