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How to create the CustomSummary based on another column values?

By default, the summary values will be added for the entire column. In order to add the summary values based on another column, a custom summary class can be created by implementing the SummaryBase. In the custom summary class, the Combine() method can be used/created to get the updated summary values based on another column values. In the provided sample, the summary value of SummaryData column will be calculated based on the checked records.

Code snippet

C#

 

VB

 

Screenshot

Sample links:

CS: CustomSummary_CS

VB: CustomSummary_VB

Article ID: Published Date: Last Revised Date: Platform: Control:
8187 11/28/2017 11/28/2017 WinForms GridGroupingControl
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