NullToBooleanConverter.cs

using System;
using System.Globalization;
using Microsoft.Maui.Controls;
 
namespace NeuroAccessMaui.UI.Converters
{
    public class NullToBooleanConverter : IValueConverter
    {
        public bool Invert { get; set; }
 
        public object Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
        {
            bool Result = value is not null;
            return this.Invert ? !Result : Result;
        }
 
        public object ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
        {
            throw new NotSupportedException("NullToBooleanConverter does not support ConvertBack.");
        }
    }
}