I would like to display the members of a family in a visual genealogy tree, like this one or similar: http://s12.postimg.org/y9lcyjhvx/Untitled.png
I don't know where to start or what I could use, or even if possible with C# windows forms.
Could someone help please?
Have you looked up this thread? Genealogy Tree Control
Basically it's suggesting to use Geni, which might be suitable for you, too
Edit: if you want to go "on foot", you can do a lot of things depending on your experience level. at first, you need a suitable data structure, e.g.
this allows (very basic) to mirror your genealogy. next, for visualization, you can at first try to fuzz around with the TreeView class. this will give you a simple textual representation of your hierarchy if you implement the right interfaces. if you want more advanced visualization, you will probably have to create your own UserControl-derived class, in which you will perform all the rendering of your tree. (then, the control can be placed on the usual windows form elements etc.) then, you can follow a recursive principle like
i dont have the commands for UI-drawing in my head right now, but this is the essential strategy i would pursue. of course, you'll want to add margins, line and everything to spice up your tree.