如何使父母在孩子中定义的例外抛出消息？

Question

当我得到它时，由于异常被抛在父级中，因此该消息的定义是在parent -null中定义的（system.exception：“ exception_wasthrown”，message：“类型'system的异常。例外“被抛出。”）。如何解决这个问题？

计划，粗略：

internal abstract class Figure
    {
        protected string BadFigExceptionMessage { get; set; }
        public Figure(params int[] measurements)
        {
            if (measurements.Any(x => x<=0)) throw new Exception(BadFigExceptionMessage);
        }
    }

    class Triangle : Figure
    {
        public Triangle(params int[] sides) : base(sides) 
        { 
            BadFigExceptionMessage = "Such a triangle does not exist."; 
        }
    }

我对Nunit的测试：

    [Test]
    [TestCase(-2, -2, -6)]
    [TestCase(0, 0, 0)]
    public void CalculateSquareOf_ImpossibleTriagSides_ReturnExceptionNoSuchTriag(int a, int b, int c)
    {
        Exception ex = Assert.Throws<Exception>(() => 
SquareCalculatorLib.Calculator.CalculateSquareOf(a, b, c)); //involves the Triangle constructor
        Assert.That(ex.Message, Is.EqualTo("Such a triangle does not exist."));
    }

Answer 1

将异常消息注入构造函数是一种方法：

internal abstract class Figure
{
    public Figure(string exMsg, params int[] measurements)
    {

        if (measurements.Any(x => x <= 0)) throw new Exception(exMsg);
    }
}

class Triangle : Figure
{
    public Triangle(int a, int b, int c) : base("Such a triangle does not exist.", a, b ,c) { }
}