.NET Windows Forms design time rules

Question

I have an object that starts a thread, opens a file, and waits for input from other classes. As it receives input, it writes it to disk. Basically, it\'s a thread safe data

Answer 1

Well, since this has been resurrected anyway, here's the function I use to determine whether I'm in design mode:

public static bool IsAnyInDesignMode(Control control){
    while(control != null){
        if(control.Site != null && control.Site.DesignMode)
            return true;
        control = control.Parent;
    }
    return false;
}

This handles the case where the control is a child created by another control. The DesignMode property is only set for controls created by the designer itself.