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Hi Team,
Based on Sujith Kumar Rajkumar angular sample in
We group 2 columns "Country" and "Main fields of invention" with "Country" as parent group of "main fields.." group.
If we check header checkbox, all rows are checked, it's ok.
If we check "Main fields of invention" group checkbox (that is the direct group of rows), then rows of this group are checked and the header column checkbox turn into indeterminate state, it's ok.
If we check "Country" (that is a parent group another group), then nothing happened, no rows, no group children checked. Even the header column checkbox doesn't change !
You'll find the project archive in attachment
Regards,