egtbeamwall/EgtBEAMWALL.Optimizer/Project/ProjectV.xaml

<UserControl x:Class="ProjectV"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:OPTIMIZER="clr-namespace:EgtBEAMWALL.Optimizer"
             DataContext="{StaticResource ProjectVM}">
   <Grid>
      <Grid.ColumnDefinitions>
         <ColumnDefinition Width="{Binding GridDims[3].GridLen, Mode=TwoWay}"/>
         <ColumnDefinition Width="Auto"/>
         <ColumnDefinition Width="{Binding GridDims[4].GridLen, Mode=TwoWay}"/>
      </Grid.ColumnDefinitions>
      <Grid.RowDefinitions>
         <RowDefinition Height="Auto"/>
         <RowDefinition Height="{Binding GridDims[1].GridLen, Mode=TwoWay}"/>
         <RowDefinition Height="Auto"/>
         <RowDefinition Height="{Binding GridDims[2].GridLen, Mode=TwoWay}"/>
      </Grid.RowDefinitions>

      <OPTIMIZER:TopPanelV Grid.ColumnSpan="3"/>

      <OPTIMIZER:LeftPanelTopV Grid.Row="1"/>

      <GridSplitter Grid.Column="1"
                    Grid.RowSpan="4"
                    Style="{StaticResource Width_GridSplitter}"/>

      <OPTIMIZER:RightPanelTopV Grid.Row="1"
                                Grid.Column="2"/>

      <OPTIMIZER:SceneBuildingV Grid.Row="1"
                                Grid.Column="2"
                                Grid.RowSpan="4"
                                Margin="4,0,4,0"
                                DataContext="{StaticResource SceneBuildingVM}"
                                Visibility="{Binding DataContext.SceneShowBuldingVisibility, RelativeSource={RelativeSource AncestorType={x:Type OPTIMIZER:ProjectV}}}"/>

      <GridSplitter Grid.Row="2"
                    Grid.ColumnSpan="3"
                    Style="{StaticResource HeightBottom_GridSplitter}"/>

      <OPTIMIZER:RightPanelBottomV Grid.Row="3"
                                   Grid.Column="2"/>

      <OPTIMIZER:LeftPanelBottomV Grid.Row="3"/>

   </Grid>

</UserControl>