How to find Min,Max,Sum of given array?
int[] number = { 1, 2, 3, 78, 100, 1001 }; (not working)
var query = new { maximum = number.Max, minimum = number.Min, Sum = number.Sum }; 
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3 Answers
You can:
var values = new { maximum = number.Max(), minimum = number.Min(), Sum = number.Sum() }; Note that those are 3 separate calls, like if it were linq2sql, those would cause 3 separate roundtrips. To pull it off in a single roundtrip, you could have a query that gives a single element in the from x in y where somecondition select ...
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those are functions, so
number.Max() number.Min() number.Sum() 
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Max, Min, and Sum are methods, not properties of the number array. So, you have to call them as you would a method (with parentheses).
var query = new { maximum = number.Max(), minimum = number.Min(), Sum = number.Sum() }; 