TcxDBTreeList (DevExpress Quantum Tree List) - How to load data from a database into it?

1) I set up a data source
2) ado connection to mssql database
3) ado query performing the query
4) tested it on a common DBGrid, everything went OK. Data shows up.

However, when I try to set it up on a TcxDBTreeList, simply doesn't work.
I set the properties Databinding to the datasource, the cxdbtreelist loads up all columns but doesn't load data, and I don't understand why not.

How can I make it load the data ?

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Ephraim WangoyaCommented:
You have to set the KeyField and the ParentField for the data to show

Here is an example using AdventorWorks

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Ephraim WangoyaCommented:
here are the files
John86aAuthor Commented:
Yeap, exactly what was missing, thank you!
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