Activator.CreateInstance can't find the constructor (MissingMethodException)

Question

I have a class which has the following constructor

public DelayCompositeDesigner(DelayComposite CompositeObject)
{
    InitializeComponent();

    compositeObjec         


        

Answer 1

If you want to call this contructor...

public DelayCompositeDesigner(DelayComposite CompositeObject)

...just use this:

var designer = Activator.CreateInstance(typeof(DelayCompositeDesigner), new DelayComposite(4));

or

var designer = Activator.CreateInstance(new DelayComposite(4));