I have a WPF Window that contains a UserControl with a MinWidth and MinHeight. How can I prevent the user from resizing the Window down to a point where that UserControl's minimum size is violated?
Here's a simplified version of a Window I'm working on. My real app's UserControl is replaced here by a Border:
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<DockPanel>
<StackPanel DockPanel.Dock="Bottom" Orientation="Horizontal">
<Button Content="OK"/>
<Button Content="Cancel"/>
</StackPanel>
<Border BorderBrush="Green" BorderThickness="10"
MinWidth="200" MinHeight="150"/>
</DockPanel>
</Window>
If I shrink the window small enough, the Border's right and bottom edges are cut off. I want to prevent the window from getting that small -- I want my window's minimum size to be exactly the point at which the Border is at its minimum size. Some frameworks (like the Delphi VCL) automatically aggregate child controls' minimum sizes up to the window; I expected WPF to do the same, but clearly it does not.
I could always explicitly set the Window's MinWidth and MinHeight, but to calculate those correctly, I would have to factor in the Buttons' ActualHeight, which would mean waiting for at least one layout pass (or calling Measure manually). Messy.
Is there any better way to keep the Window from resizing too small for its content?