data, model and tree view

[larry104]

Hi,
I have a maybe stupid question but, can anyone help me here:

I have a data class which gets manipulated through a tableWidget. Then I have a model and a treeview based on that data. The data can only be viewed in the tree view. How do I tell the model that the data was changed through the table widget?

The table widget looks like that:
a1 1 2 3
b1 4 5

The tree view displays the full factorial combinations of a1 b1

a1
1
   b1
   4
   5
2
  b1
  4
  5
3
  b1
  4
  5

a1
1
   b1
   4
   5
2
  b1
  4
  5
3
  b1
  4
  5

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So, adding a value to b1 would change the tree. I guess (at least I don't see how) I can't have a single model for the two different views since the setData is different for both views.
I appreciate any comments to help me solve my problem.
Thanks.