How to create a class that clears the screen of buttons and other controls?

December 2, 2022

I am reusing the same code for clearing the screen many times in my program, and I thought about turning it into a class, but I still don’t get how classes work and how to properly make one.

My code to clear buttons and other controls is as follows:

        List<RichTextBox> _richTextBoxes = this.Controls.OfType<RichTextBox>().ToList();
        List<Button> _buttons = this.Controls.OfType<Button>().ToList();
        List<Label> _labels = this.Controls.OfType<Label>().ToList();
        List<TextBox> _textBoxes = this.Controls.OfType<TextBox>().ToList();

        foreach (var rich in _richTextBoxes)
        {
            this.Controls.Remove(rich);
        }
        foreach (var button in _buttons)
        {
            this.Controls.Remove(button);
        }
        foreach (var label in _labels)
        {
            this.Controls.Remove(label);
        }
        foreach (var textBox in _textBoxes)
        {
            this.Controls.Remove(textBox);
        }

>Solution :

As others already mentioned, it’s a rare practice to remove/create all controls of a container (Form, Panel, etc) at runtime, and a possible waste of PC resources.

Of course you can use:

Form.Controls.Clear();

Panel.Controls.Clear();

But, what’s wrong with placing all your controls in a Panel, for example, and simply hiding said panel? seen you get the same result in a more efficient way

If you opt for this, it’s as simple as this line: