C# passing an Action<> into another Action<>

Question

I am new to delegates and I am trying to pass an Action<> as a parameter of another Action<>. For example, (with code re-usability in mind) I was attempting to make a loop action and pass other actions into it to reduce the number of loops in my code:

Action<int, Action<Control, Control>> loop = (int stop, Action<Control, Control> action) =>
{
    for (int i = 0; i < stop; i++)
    {
        for (int j = 0; j < stop; j++)
        {
            <action> pass Add;
        }
    }
};

Action<Control, Control> Add = (Control Parent, Control Child) => Parent.Controls.Add(Child);

The main objective is to be able to re-use the double for loop in such a way where I can mix and match the action inside of it with other actions.

Answer 1

Action<int, Action<Control, Control>> loop = (int stop, Action<Control, Control> action) =>
{
    for (int i = 0; i < stop; i++)
    {
        for (int j = 0; j < stop; j++)
        {
            //// invoke action with real arguments
            // action(controlParent, controlChild);
        }
    }
};

Action<Control, Control> Add = (Control Parent, Control Child) => Parent.Controls.Add(Child);

loop(1, Add);

Answer 2

如果要在主动作中使用另一个动作来循环，您的动作用法也不错。