从子类C＃中的基本抽象类覆盖属性的set部分

Question

我有一个抽象类 A 作为我的基类，派生类 B 。如何覆盖子类 B set DrawingType 属性>

public abstract class A
{
    protected DrawingType m_type;

    public DrawingType Type
    {
        get { return m_type; }
        set { m_type = value}
    }
}

public B : A
{
    // I want to override the 'set' of DrawingType property here.
}

Answer 1

您的课程应如下所示：

abstract class A
{
    protected DrawingType m_type;

    protected virtual DrawingType Type
    {
        get { return m_type; }
        set { m_type = value; }
    }
}

class B : A
{
    protected override DrawingType Type
    {
        get
        {
            return m_type;
        }
        set
        {
            m_type = //custom logic goes here
        }
    }
}

如果基类没有实现，您可以使用

abstract class A
{
    protected DrawingType m_type;

    protected abstract DrawingType Type { get; set; }
}