NEIntelligentControl-jnxj/NEIntelligentControl2/Views/Basic/OptionalUniformGrid.xaml

<UserControl x:Class="NEIntelligentControl2.Views.Basic.OptionalUniformGrid"
             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:NEIntelligentControl2.Views.Basic"
             mc:Ignorable="d" 
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid MouseMove="Grid_MouseMove" Background="#01FFFFFF" MouseLeftButtonDown="Grid_MouseLeftButtonDown" MouseLeftButtonUp="Grid_MouseLeftButtonUp" MouseLeave="Grid_MouseLeave">
        <UniformGrid x:Name="_UGMain" Columns="{Binding RelativeSource={RelativeSource AncestorType={x:Type UserControl}, Mode=FindAncestor}, Path=Columns}" VerticalAlignment="Top"/>
        <Rectangle x:Name="_RTMain"  Fill="#7F6A6A6A" Visibility="Collapsed" Stroke="#FF6A6A6A"/>
    </Grid>
</UserControl>