LUA set value for treeitem

["Pawlowsky, Marc" <mpawlowsky () rbbn com>]

Is there a way to set the value for a treeitem after the tree item has been created?

The problem:

I am writing a X.409 based decoder (similar ASN.1).

I have a property stored as an integer to decode.
I come up with a tree like:


  *   Myproperty
     *   X.409 Integer
        *   Tag
        *   Length
        *   Value


The length of the value field is variable.

I have a protofield for all treeitems.
For my property I am currently using
pf_myproperty = ProtoField.uint8("myprop.myproperty ", "myproperty", base.HEX)

I create the myproperty treeitem first, then drill down and create the treeitems underneath it.
To prevent the protofield from decoding nonsense I am setting the value explicitly
  local myproperty_tree = tree:add(pf_myproperty, buffer(offset), 0)

After all the tree items are created I can set the length using myproperty_tree::set_len(len)

Is there a way I can set the value after creation?

I want to be able to filter on myproperty.
Something like myprop.myproperty==0xFF

I cannot find anything in
https://www.wireshark.org/docs/wsdg_html_chunked/lua_module_Tree.html


Thanks
  Marc


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