I have some content from a CMS that I need to move to raw asp.net pages. Since the templates are nested I guess I can use nested masterpages to acomplish it, but I'm finding that I can't set values on the top masterpage from the deep child page.

Here is a sample. I have several nested masterpages with contentplaceholders:

• top master (with contentPlaceHolder1)
• nested master, dependent on top master (with contentPlaceHolder2)
• aspx page, dependent on nested master, defines content for contentPlaceHolder1 and 2

The problem is that asp.net doesn't allow me to have the value of contentPlaceHolder1 defined in the content page, it should be defined in the nested master. But the point is that the client page knows that value, not the template masters (for instance, the page knows about the graphic it has to display on the the top, but the placeholder for the graphic is the top master).

How can I set values in the aspx page to be rendered in the top master?