Thank you for contacting us.
Currently these features are not supported by RadGridView. I will add them to our TODO list. However you can use the RadGRidView.RowFormatting
event to customize almost any aspect of grid rows appearance according to any custom conditions. In your case you may have to query you DataSource if there are any child records corresponding to the key value of the parent row.
I have added points to your account for the suggestions.
Don't hesitate to contact us if you have other questions.
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