How to sum and average the whole column

[ppr (Peter Preuss)]

[HowTo] LINQ - First Start # Min | Max | Sum | Average Operator

This HowTo gives an introductory overview of the aggregation Operators: Min, Max, Sum, Average Introduction The aggregation operators are used to retrieve from a collection a particular result by setting the contained items into a relationship. Overview I – Input P – Processing O – Output {2,12,-8,6,14,5} get the lowest value -8 {2,12,-8,6,14,5} get the highest value 14 {2,12,-8,6,14,5} sum up all values 31 {2,12,-8,6,14,5} get the average of all values 5.17 Constraints P…

VB:
mySum | Datatype: Double = DtVar.AsEnumerable().Sum(Function (x) CDbl(x(“fiyat”).toString.Trim))

C#:

DtVar.AsEnumerable().Sum(x =>  Convert.ToDouble(x["fiyat"].ToString().Trim()))