LINQ group by 3 columns but display all of them

[ppr (Peter Preuss)]

we can do:

• using remove duplicate row activity
• YourDataTableVar.DefaultView.ToTable(True, {ColNameFirst,ColNameLast})
• LINQ

Also have a look here:

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[HowTo] - Find Duplicate / NonDuplicate rows - checking all columns - without explicit listing the colnames/index

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