Looks like either the "resize enclosing part" option was not specified for the portal or you have some other layout object below the portal (could be a simple as a horizontal line) that is not also set to slide up and to resize.
But if you have these relationships:
You still do not need a portal on your layout. You can set up a list view layout based on GrandChild and include fields from both Parent and Child on your layout. (This assumes that every Parent has at least one child and every child has at least on grandchild...)
Thanks for your response.
I checked for the third time, but there is nothing behind the portal and "resizing enclosing parts" is on. The portal resizing is not the problem. I show you the next page and you can see that the portal sliding is working fine. It looks like it has something to do with starting a new sub summary. (The picture is the next page directly after the first one).
I can't use the list view because not every child has a grand child. (Every Parent has a child, but not every child has a grand child).
What version of FileMaker are you using?
This appears to be an old bug that one would have thought that newer releases would have corrected.
For More Information see: Frustrating subsummary bug
This is one of many acknowledged bugs that can be found in the Known Bug List thread here in the Report an Issue section of the forum.It can also be downloaded as a database file from: https://www.dropbox.com/s/jt09b82i0xijbu3/FMP%20Bugs.zip
I am using FMPA version 13.0V4
Frustrating that this issue is still with us...
It is frustrating. In former days people didn't care about more or less paper, but in these times it is not done to spoil paper.
And I already tried to find a workaround, but couldn't find one. Like I mentioned, not every child has a grand child, and even worse, in some cases the child has more than one parent.
I will have to find out how to handle this.
Thanks for your time and effort Phil.