This example demonstrates how to implement a GridControl descendant which allows hiding the header and footer for groups with an empty group row value.
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Added By: Guo Clark at: 5/16/2016 9:47:35 PM I have a question is how to avoid VisibleIndexes insert duplicate values, because I found this place to be a mistaken example, when performing ExpandRow () method will insert duplicate values in VisibleIndexes, thank you!