Even more interessting is the fact that this doesn't always appear. At the moment I can see the form2 ? And I didn't change anything, just opened the project again to test a few things ?
Has anyone else seen this problem, is it a bug ?

Marcus

>>>>I have set up 2 Forms. Inheritance structure:
>>>>Windows.System.Form
>>>>...+Form1
>>>>.......+Form2
>>>>
>>>>Wenn now opening Form2 with VS Form Designer I get an error Message that the baseclass Marcus.Test.Form1 can not be loaded. Has anyone got an idea how to get around this without compiling form1 into an own assembly ?
>>>>
>>>>Marcus
>>>>
>>>>Code snippets of Class definition
>>>>

>>>>namespace Marcus.Test
>>>>{
>>>>	public class Form1 : System.Windows.Forms.Form
>>>>	{
>>>>......
>>>>
>>>>namespace Marcus.Test
>>>>{
>>>>	public class Form2 : Form1
>>>>	{
>>>>
>>>>
>>>>
>>>>