Kepler-Release/Venus/Venus_MainPages/Views/OverView.xaml

<UserControl x:Class="Venus_MainPages.Views.OverView"
             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:Venus_MainPages.Views"
             mc:Ignorable="d" 
             xmlns:prism="http://prismlibrary.com/"
             prism:ViewModelLocator.AutoWireViewModel="True"
             xmlns:ctrls="clr-namespace:Aitex.Core.UI.Control;assembly=MECF.Framework.UI.Core"
             d:DesignHeight="450" d:DesignWidth="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <ctrls:FlowPipeValve Name="flv"/>
        <ctrls:FlowPipeV2 Grid.Row="1" Height="20" Name="fl2" Width="200"/>
        <Button Grid.Row="2" Width="100" Height="20" Click="Button_Click"  Content="Switch"/>
    </Grid>
</UserControl>