Cannot access a disposed object?

Question

I have a countdown Timer form - on the first form the user will enter the countdown time - warning times, end message, etc. There are also two Radio buttons (Max/Min) and d

Answer 1

The solution is simple that instantiate the object of the called form in the button click event e.g.

private void buttonSetting_Click( object sender, EventArgs e )
    {
        ***_setting = new SettingWindow();***  //When I need to show the settings window

        _setting.Show();
    }