I\'ve tried to embed a .NET WinForms graph (Stephan Zimmermann\'s Graph Display) in a WPF window, under a WindowsFormsHost (I\'ve referenced both System.Windows.Forms and Wi
Although the question is more than 6 years old I had a similar (if not the same issue), when trying to create and add the Chart object at runtime. Thanks to Bobwah's suggestion I could isolate the problem and found that I simply had to add a ChartArea to the Chart object to see the graph:
Chart chart = new Chart();
chart.ChartAreas.Add("MainChartArea"); //this was missing
chart.Series.Add(getSeries());
chart.Dock = System.Windows.Forms.DockStyle.Fill;
host.Child = chart; //'host' is the WPF-WindowsFormsHost control
Hope it helps someone... ;)