The ASPxGridView allows you to create custom grouping for the data columns. In the screencast below you'll learn how to create a grouping on a price column. Usually a column is grouped by like values but in this demo a custom grouping is created so the unit prices are grouped in ten dollar increments:
You can view how to create this type custom grouping by watching the screencast below:
You can also view the help topic which is a good reference for the code, properties and methods used in this event: ASPxGridView.CustomColumnGroup Event
I recommend trying this sample on your machine. Check it out and then let me know your thoughts.
Thanks!
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