How can i implicitly convert my class to another type?

问题

For example implicitly

MyClass myClass = new MyClass();
int i = myClass;

回答1:

You need to define this in the MyClass file.

public static implicit operator int(MyClass instance) 
{
    if (instance == null) 
    {
        return -1;
    }
    return instance._underlyingValue;
}

回答2:

class MyClass 
{
   public static implicit operator int(MyClass myClass) 
   {
      // code to convert from MyClass to int
   }
}

Take a look there : implicit

回答3:

This MSDN entry covers what you want exactly, should do the trick.

来源：https://stackoverflow.com/questions/3016504/how-can-i-implicitly-convert-my-class-to-another-type