ColorDailogBox

private void ForegroundButton_Click(object sender, EventArgs e)

{

    ColorDialog colorDlg = new ColorDialog();

    colorDlg.AllowFullOpen = false;

    colorDlg.AnyColor = true;

    colorDlg.SolidColorOnly = false;

    colorDlg.Color = Color.Red;

                    

    if (colorDlg.ShowDialog() == DialogResult.OK)

    {

        textBox1.ForeColor = colorDlg.Color;

        listBox1.ForeColor = colorDlg.Color;

        button3.ForeColor = colorDlg.Color;

    }

}

private void BackgroundButton_Click(object sender, EventArgs e)

{

    ColorDialog colorDlg = new ColorDialog();

    if (colorDlg.ShowDialog() == DialogResult.OK)

    {

        textBox1.BackColor = colorDlg.Color;

        listBox1.BackColor = colorDlg.Color;

        button3.BackColor = colorDlg.Color;

    }

}