How do you use Func<> and Action<> when designing applications?

Question

All the examples I can find about Func<> and Action<> are simple as in the one below where you see how they technically work but I would like

Answer 1

I use the Action and Func delegates all the time. I typically declare them with lambda syntax to save space and use them primarily to reduce the size of large methods. As I review my method, sometimes code segments that are similar will stand out. In those cases, I wrap up the similar code segments into Action or Func. Using the delegate reduces redundant code, give a nice signature to the code segment and can easily be promoted to a method if need be.

I used to write Delphi code and you could declare a function within a function. Action and Func accomplish this same behavior for me in c#.

Here's a sample of repositioning controls with a delegate:

private void Form1_Load(object sender, EventArgs e)
{
    //adjust control positions without delegate
    int left = 24;

    label1.Left = left;
    left += label1.Width + 24;

    button1.Left = left;
    left += button1.Width + 24;

    checkBox1.Left = left;
    left += checkBox1.Width + 24;

    //adjust control positions with delegate. better
    left = 24;
    Action moveLeft = c => 
    {
        c.Left = left;
        left += c.Width + 24; 
    };
    moveLeft(label1);
    moveLeft(button1);
    moveLeft(checkBox1);
}