I have a grid bound to a collection of objects each object has a collection of child objects and they all display nicely e.g.

object 1

child 1

child 2

object 2

child 1

Now in code I add a child to object 2 e.g. MyObject2.Add(child) i then can view the collection at runtime e.g.

((List<MyObject>)myGrid.DataSource)

And this shows that the child has been added succesfully, however if i call myGrid.DataBind() the new child does not appear in the child band in the grid.

How do I get it to appear automatically ??

If I do the following I lose my current layout and positioning but the child is there:

var data = ((List<MyObject>)myGrid.DataSource);

myGrid.DataSource = null;

myGrid.DataSource = data;