CellTree with different types at same level

[decitrig]

The docs for CellTree say that nodes at the same level "usually" share
a common type, but that it isn't necessary. However, since the data
providers & node info are parameterized, nodes seem to *have* to have
a common type at a given level. What am I missing? are there examples
anywhere of having types with nothing in common at the same level? Is
it just returning a raw NodeInfo and then doing the type checking/
casting in the cell?

[David Pinn]

I think type checking and casting within the cell is necessary in that
case.

[John LaBanca]

By "at the same level", we mean that if A and B are siblings, their children can be different types even if there are at the same depth in the tree.  CellTree doesn't support difference types within the same child list.  You'll have to use a common super type or interface and cast as needed.

The following is supported.  The children of A and B are different types (Bar and Baz) but are both one level deep:

A (Foo)

- AA (Bar)

- AB (Bar)

- AA (Bar)

B (Foo)

- BA (Baz)

- BB (Baz)

- BC (Baz)

The following is not supported.  The children of A cannot be of multiple types.

A (Foo)

- AA (Bar)

- AB (Baz)

- AA (Biz)

Thanks,

John LaBanca
jlab...@google.com

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[ayushi...@gmail.com]

Hi john

I have a query, what if we want the level one too have different type and same with sub level.

John LaBanca
jlab...@google.com

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[CodeLess Solutions]

Make sure that all your classes extend the same base class and you will be fine as John already said.