Viewbox 强制窗口到屏幕高度

Question

所以我有一个 ViewBox 可以在调整窗口大小时缩放 Grid 但是当显示窗口时它已最大化到我的屏幕高度，宽度也比它应该的要大.使用 Width="301" Height="287" 将窗口设置为 301*87，但由于某种原因被忽略。设置 ViewBox 的宽度/高度会更正起始窗口大小，但会阻止它在调整大小时缩放 Grid 的内容。如何让 ShowDialog() 上的窗口大小从 301*287 开始，同时保持 ViewBox 正常工作？

<Window x:Class="Test.Dialogs.DatatypesDialog"
        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/markup-compatibility/2006"
        xmlns:local="clr-namespace:Test.Dialogs"
        mc:Ignorable="d"
        Title="DatatypesDialog" Width="301" Height="287" Background="Black" SizeToContent="WidthAndHeight" MinWidth="301" MinHeight="287" WindowStartupLocation="CenterOwner">
    <Viewbox >
        <Grid Width="285" Height="248" >
        <ListBox x:Name="lbDTypes" Margin="10,10,0,0" SelectionMode="Single" HorizontalAlignment="Left" Width="140" Height="228" VerticalAlignment="Top"/>
        <TextBox x:Name="tbType" Margin="155,10,0,0" TextWrapping="Wrap" Text="" HorizontalAlignment="Left" Width="120" Height="23" VerticalAlignment="Top"/>
        <Button Content="New" Click="NewDType"  Margin="155,38,0,0" Height="20" VerticalAlignment="Top" HorizontalAlignment="Left" Width="120"/>
        <Button Content="Move Up" HorizontalAlignment="Left" Margin="155,128,0,0" VerticalAlignment="Top" Width="120"/>
        <Button Content="Move Down" HorizontalAlignment="Left" Margin="155,153,0,0" VerticalAlignment="Top" Width="120"/>
        <Button Content="Remove" HorizontalAlignment="Left" Margin="155,88,0,0" VerticalAlignment="Top" Width="120"/>
        <Button Content="Modify" Margin="155,63,0,0" Height="20" VerticalAlignment="Top" HorizontalAlignment="Left" Width="120"/>
        <Separator HorizontalAlignment="Left" Height="20" Margin="155,108,0,0" VerticalAlignment="Top" Width="120"/>
        <Separator HorizontalAlignment="Left" Height="20" Margin="155,173,0,0" VerticalAlignment="Top" Width="120"/>
        <Button Content="Save" HorizontalAlignment="Left" Margin="155,193,0,0" VerticalAlignment="Top" Width="120" RenderTransformOrigin="0.583,-0.025"/>
        <Button Content="Close" HorizontalAlignment="Left" Margin="155,218,0,0" VerticalAlignment="Top" Width="120"/>

        </Grid>
    </Viewbox>
</Window>