How to insert Footer in defferenct sections?

Hi.
I’ve created a word document with 5 Sections inside. And now want to insert footer in these sections, but if I do:
section1.HeadersFooters.Add(footer);
section2.HeadersFooters.Add(footer);
sectionX.HeadersFooters.Add(footer);
I got the message:

How I can insert a footer in different sections? Thanks

Try this:

section1.HeadersFooters.Add(footer.Clone(true));
section2.HeadersFooters.Add(footer.Clone(true));
sectionX.HeadersFooters.Add(footer.Clone(true));

Does it solve your issue?

Regards,
Mario

Hello Mario.
I did the next:
Foreach (var section in dc.Sections)
{

            section.HeadersFooters.Add(footer);

        }

It works. thanks