<UserControl x:Class="ZknwSystems.WindFarmScada.UserControls.ComponentControl"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/up-compatibility/2006" x:Name="myControl"
               xmlns:led="clr-namespace:StatusControl.LEDDisplays;assembly=ZknwStatusControlLibrary"
    mc:Ignorable="d"
    >
    <ScrollViewer HorizontalAlignment="Left"
 Height="{Binding Path=ControlHeight, ElementName=myControl}" BorderThickness="0" VerticalScrollBarVisibility="Auto">
</ScrollViewer >
</UserControl >直接 写里面 就好了。