Hierarchical Grid: Binder.AddRelation returns null

[Matthias Klein]

Hi, why does the call to Binder.AddRelation fail and return null? The call to _showing.getChildren() returns a Dataset with 2 tables ("parent" & "child") and 1 relation ("parentchild"). Greets Matthias snippet_4394.zip

[Matthias Klein]

Looks like the problems are docking related. When have the grid (or the panel it''s on) to EnableDocking=false it works.

I opened a Direct-Trac for that. I let u know if I can get it to work.

Greets
Matthias

[John Boero]

I know this post is old, but I just noticed the same problem in 4.1. My problem is I don''t plan on giving up the docking ability to fix a relation problem. Is there some other way to access relations in docking controls?

Someone please advise.
John

>Looks like the problems are docking related. When have the grid (or the panel it''s on) to EnableDocking=false it works.
>
>I opened a Direct-Trac for that. I let u know if I can get it to work.
>
>Greets
>Matthias

[John Boero]

I see it works to set up relations first and enable docking afterwards. The grid must be added to the form''s controls before its relations are added. This must be a .NET issue.

>I know this post is old, but I just noticed the same problem in 4.1. My problem is I don''t plan on giving up the docking ability to fix a relation problem. Is there some other way to access relations in docking controls?
>
>Someone please advise.
>John