Converting Brush to SolidColorBrush WinUi 3

Question

Im moving WPF project to WinUi 3. I would like to convert Brushes.Red/Green to SolidColorBrush. It's used by xaml elements' properties like Background.

public SolidColorBrush PowerBrush
{
    get
    {
        if (_powerMode == PowerMode.Off)
        {
            //return (SolidColorBrush)Application.Current.Resources["SystemFillColorCriticalBrush"]; 
            return new SolidColorBrush(Brushes.Red);
        }
        else
        {
            //return (SolidColorBrush)Application.Current.Resources["SystemFillColorSuccessBrush"];
            return Brushes.Green;
        }

    }
}

I got errors:

Cannot convert from 'System.Drawing.Brush' to 'Windows.UI.Color'

Cannot implicitly convert type 'System.Drawing.Brush' to 'Microsoft.UI.Xaml.Media.SolidColorBrush'

How to do it?

return new SolidColorBrush(((SolidBrush)Brushes.Green).Color); Cannot convert from 'System.Drawing.Color' to 'Windows.UI.Color' — Marek Pio, May 31 '23 at 09:44
I think the downvote is from the bad format of the question. — Smartis has left SO again, May 31 '23 at 10:58
At least mark your own answer as 'accepted' for future viewers. — Smartis has left SO again, May 31 '23 at 10:59

Marek Pio · Accepted Answer · 2023-06-01T11:10:44.437

There is no way to convert from Brush used in WPF to SolidColorBrush used in WinUi 3.

The easies way is to use Microsoft.UI.Colors instead of System.Drawing.Brushes for WinUi 3.

public SolidColorBrush PowerBrush
{
    get
    {
        if (_powerMode == PowerMode.Off)
        {
            return new(Colors.OrangeRed);
        }
        else
        {
            return new(Colors.Green);
        }
    }
}

Converting Brush to SolidColorBrush WinUi 3

1 Answers1