how can i make a button public that i form in runtime?

Question

I have formed buttons at runtime. I need to access the buttons from another form but i can't change the modifier to public at runtime

Could you please help me?

Answer 1

You could add a public list of buttons to your form (I assume winforms here):

public List<Button> Buttons { get; private set; }

In the forms constructor:

public MyForm()
{
    InitializeComponent();
    Buttons = new List<Button>();
}

In the method where you create the buttons at runtime:

var button = new Button();
button.Text = "This is a new Button";
button.Location = ...;
... configure your button here

Buttons.Add(button); // Add button to list.
Controls.Add(button);

In the other form

foreach (Button btn in formWithButtons.Buttons) {
    DoSomethingWith(btn);
}

Since the buttons are added dynamically it makes a lot of sense to use a dynamic data structure like a List<T>.