I can reproduce your issue. You should report it as a bug Here
Simple workaround for now could be:
Keep your xaml the same as you got to:
<Controls:MetroWindow x:Class="MyProject.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Controls="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro"
xmlns:Views="clr-namespace:MyProject.Views"
WindowStyle="None"
IgnoreTaskbarOnMaximize="True"
Title="MyProject">
and in the Window
's code-behind:
public MainWindow() {
InitializeComponent();
Loaded += OnLoaded;
}
private void OnLoaded(object sender, RoutedEventArgs routedEventArgs) {
WindowState = WindowState.Maximized;
ResizeMode = ResizeMode.NoResize;
ShowMaxRestoreButton = false;
ShowMinButton = false;
Loaded -= OnLoaded;
}
This will give you the behavior you want. We pretty much set the state(maximized), hide min/max buttons with the Loaded
event and only do it once.