WPF DataGrid不更新只读值

我有一个带有以下数据项的

列表

：

class MyClass
{
    public double MyValue { get; set; } = 0;
    public double MyReadonlyValue
    {
        get { return MyValue +1; }
    }
}

以及以下数据绑定

DataGrid

：

<DataGrid ItemsSource="{Binding MyList}" AutoGenerateColumns="False">
    <DataGrid.Columns>
        <DataGridTextColumn Binding="{Binding Path=MyValue}" Header="myvalue"/>
        <DataGridTextColumn Binding="{Binding Path=MyReadonlyValue}" Header="myreadonlyvalue" IsReadOnly="True"/>
    </DataGrid.Columns>
</DataGrid>

myreadonly值得到正确更新

但我希望在myValue编辑操作（如

CellEditEnding

）结束时更新值，并且在编辑过程中，我无法调用

刷新

函数。我怎么办

---

谢谢。

每当

MyValue

设置为新值时，执行

INotifyPropertyChanged

并引发

MyReadonlyValue

属性的

PropertyChanged

事件：

class MyClass : INotifyPropertyChanged
{
    private double _myValue;
    public double MyValue
    {
        get { return _myValue; }
        set
        {
            _myValue = value;
            NotifyPropertyChanged();
            NotifyPropertyChanged(nameof(MyReadonlyValue));
        }
    }

    public double MyReadonlyValue
    {
        get { return MyValue + 1; }
    }

    public event PropertyChangedEventHandler PropertyChanged;
    private void NotifyPropertyChanged([System.Runtime.CompilerServices.CallerMemberName] String propertyName = "")
    {
        if (PropertyChanged != null)
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
    }
}

class MyClass : INotifyPropertyChanged
{
    private double _myValue;
    public double MyValue
    {
        get { return _myValue; }
        set
        {
            _myValue = value;
            NotifyPropertyChanged();
            NotifyPropertyChanged(nameof(MyReadonlyValue));
        }
    }

    public double MyReadonlyValue
    {
        get { return MyValue + 1; }
    }

    public event PropertyChangedEventHandler PropertyChanged;
    private void NotifyPropertyChanged([System.Runtime.CompilerServices.CallerMemberName] String propertyName = "")
    {
        if (PropertyChanged != null)
            PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
    }
}