C＃列表未按对象填充

Question

我一直在做一个家庭项目，但是遇到了一个问题，我错过了解决方案。

我创建了以下课程

public class Sides
{
    //These are the encapsulated data 
    private int intAdj;         //adjacent
    private int intOpp;         //opposite
    private Double doubleHypot; //hypotenuse

    //This is the constructor 
    public Sides(int intAdj, int intOpp, Double doubleHypot)
    {
        //less confusion when the same name is used
        this.intAdj = intAdj;
        this.intOpp = intOpp;
        this.doubleHypot = doubleHypot;
    }

    //Getters and Setters
    public int IntAdj { get; set; }
    public int IntOpp { get; set; }
    public Double DoubleHypot { get; set; }
} 

我从这个方法调用它

Sides mySide;
//This is where the calculations occur
for (int indexAdj = 1; indexAdj < (intTriangleSize + 1); indexAdj++)
{
    for (int indexOpp = 1; indexOpp < (intTriangleSize + 1); indexOpp++)
    {
        doubleHypotenuse = doubHypot(doubleSquare(indexAdj), doubleSquare(indexOpp));
        mySide = new Sides(indexAdj, indexOpp, doubleHypotenuse);
        MessageBox.Show("Green Lantern" + "\n"
            + "Adjacent " + indexAdj + "\n"
            + "Opposite " + indexOpp + "\n"
            + "Hypotenuse " + doubleHypotenuse);
        listTriangle.Add(mySide);
    }
}

列表的声明和初始化如下

private List<Sides> listTriangle;
listTriangle = new List<Sides>();

经过反复试验，应该正确地填写列表中的值，如您在此处所附图像中所见

然后，我立即尝试通过循环遍历循环以检查是否正常工作，从而通过此代码检查列表。该代码是

for (int indexRan = 0; indexRan < listTriangle.Count; indexRan++)
{
    if (indexRan == 2)
    {
        MessageBox.Show(listTriangle[2].IntAdj + " Purple Haze");
    }
}

结果如下图所示

我将不胜感激，并感谢任何帮助和指导

Answer 1

问题是您要分配给构造函数中的私有字段，而不是要从调用方访问的公共属性。

避免这种情况的一种方法是仅使用公共属性：

public class Sides
{
    // Public properties
    public int Adjacent { get; set; }
    public int Opposite { get; set; }
    public double Hypotenuse { get; set; }

    // Constructor 
    public Sides(int adjacent, int opposite, double hypotenuse)
    {
        this.Adjacent = adjacent;
        this.Opposite = opposite;
        this.Hypotenuse = hypotenuse;
    }
}

如果只允许在类本身中设置属性，则可以使用setter private：

public class Sides
{
    // Public read-only properties
    public int Adjacent { get; private set; }
    public int Opposite { get; private set; }
    public double Hypotenuse { get; private set; }

    // Constructor 
    public Sides(int adjacent, int opposite, double hypotenuse)
    {
        this.Adjacent = adjacent;
        this.Opposite = opposite;
        this.Hypotenuse = hypotenuse;
    }
}

另请注意，不必type在变量名称中包含。