BPASmartClient/WPFDemo/SiloPanel.xaml

<UserControl x:Name="userControl" x:Class="WPFDemo.SiloPanel"
             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:WPFDemo"
             DataContext="{Binding RelativeSource={RelativeSource Self}}"
             mc:Ignorable="d" >
    <Viewbox >
        <Canvas Name="cvMain" Width="{Binding PanelWidth}" Height="{Binding PanelHeight}" Background="#B2C0E2E1">
            <StackPanel Orientation="Horizontal" Canvas.Top="5" Canvas.Left="5">
                <TextBlock FontSize="15" Text="{Binding Tips}"></TextBlock>
            </StackPanel>
        </Canvas>
    </Viewbox>
</UserControl>