Questions on using enums as parameters and if/else conditions

Is it possible to do the following with an enum in C#?:

• Pass in to a method a selected value of the enum (eg if an enum has members such as Red, Green, Orange, I can pass in Colors.Red).

• In the method body of the above method which accepts an enum, I can say if (Enum == Co开发者_开发百科lors.Red).

What would be the syntax for this? I've always seemed to have stalled on this.

Yes, just like you would with any other type ...

public void MyMethod( Color color )
{
   if( color == Color.Red )
      ...
}

You can do it like this:

public enum Colors{
   Red,
   Blue
}

...

public void DoSomething(Colors theColor){
   if(theColor == Colors.Red) // do something...
}

Yes, you can. This is a simple example:

public enum Colors
{
    Red,
    Orange,
    Green
}

...

public bool IsRed(Colors c)
{
    if (c == Colors.Red)
        return true;
    else
        return false;
}

Your function call would look like:

bool test = IsRed(Colors.Green); //false

Yes and yes. Syntax is just as you have there.