Z173/Models/StageData.cs

using CommunityToolkit.Mvvm.ComponentModel;

namespace AciTester.Models
{
    public partial class StageData : ObservableObject
    {
        [ObservableProperty]
        private string stageName;

        [ObservableProperty]
        private double cutoffDiameter;

        private double _initialWeight;
        public double InitialWeight
        {
            get => _initialWeight;
            set
            {
                if (SetProperty(ref _initialWeight, value))
                    OnPropertyChanged(nameof(NetWeight)); // 关键：通知净重变化
            }
        }

        private double _finalWeight;
        public double FinalWeight
        {
            get => _finalWeight;
            set
            {
                if (SetProperty(ref _finalWeight, value))
                    OnPropertyChanged(nameof(NetWeight)); // 关键：通知净重变化
            }
        }

        // 计算属性，不存储
        public double NetWeight => FinalWeight - InitialWeight;
    }
}