Perform calculation inside select statement in LINQ

Question

I have a situation where i have to calculate percentage of two values for example

IEnumerable result = 
    from r in renewalLists
    gro         


        

Answer 1

When the expression is traslated to SQL by Linq, it truncates values to an integer while the query is executed, so when I use for example:

select new SomeModel{
    Value = 3/7
}

it returns 0.

but, when I use:

select new SomeModel{
    Value = 3.0 / 7.0
}

returns the correct value = 0.428...

So, I think when you use expressions to be used by Linq To Entities, wich must return double or decimal, you should write or cast all values explicitly as double...

I hope it helps.