C# / WPF - Partial declarations must not specify different base classes

Question

Here's my NewWin Class inherited from Window (System.Windows.Window) Class.

public partial class NewWin : Window
{
    public NewWin()
    {
        this.Background = new SolidColorBrush(Color.FromRgb(0, 0, 0));
    }
}

And my MainWindow (WPF's Default) inherited from NewWin instead of Window.

public partial class MainWindow : NewWin
{
    public MainWindow()
    {
        InitializeComponent();
    }
}

Upon compilation there is an error message writing as followed:

Partial declarations of 'Test.MainWindow' must not specify different base classes

With 'Test' being the name of my project.

rholek · Accepted Answer · 2016-11-06 18:36:27Z

7

Go to MainWindow.xaml and change type of root element from Window to NewWin.

answered Nov 6, 2016 at 18:36

rholek

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1 Comment

N.I.R.E.X Over a year ago

I probably must have added that I'm not an expert on xaml, so by root I assumed that you meant x:Class="Test.MainWindow" which was changed to x:Class="Test.NewWin", and that solved the problem.

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