Question

I’m not sure if what I’m asking about is possible, so bear with me.

Currently I have multiple functions, each with the same loop bit and different action.

I would like a function who’s main purpose is to loop through certain entries in a list and have different action based on the caller.

One solution I though of is to have a switch/if block and a unique variable from the caller to determine the action. However, I was more thinking along the lines of calling the function and some how passing in the action it should take on each entry.

Answer 1

Perhaps your function could take an Action<T> as a parameter, and each caller can provide its own action as an argument?

public void LoopOperation(Action<MyType> action)
{
    foreach(MyType myObject in myCollection)
    {
         action(myObject);
    }
}

You could call it like the following:

LoopOperation(o => Console.WriteLine(o.ToString()));

Or perhaps like the following:

LoopOperation(o => o.SaveToDatabase());

Or with any other operation you want to perform.