c# - 从属性更改方法的行为

Question

我想从属性更改方法的行为。考虑这个伪代码:

public class CheckHoliday : System.Attribute
{
    //Here I want exit from consumer method if today is holiday 
}

public class TestClass{

    [CheckHoliday]
    public void TestMethod(){

    }
}

我不想使用面向方面的。

Answer 1

这个问题对我来说也不是很清楚，但如果这是你想要实现的，那么有一个使用全局变量的解决方法。虽然它只是预先计算假期。

//Declare a global variable
public Boolean IsHoliday = false;

//Attribute 
public class CheckHoliday : System.Attribute
{
    //Here I want exit from consumer method if today is holiday ?
    //this ain't possible 
    public CheckHoliday()
    {
        //if  today is holiday  make IsHoliday= true based on logic
        IsHoliday= true;
        //Else keep it false
    }

}

public class TestClass
{
    [CheckHoliday]
    public void TestMethod()
    {
       //Here you can exit  if today is holiday
        if (IsHoliday)
            return;

        //Else Method Logic here

    }
}