How to build an expression which will produce the following statement?
x => x.Parameter1 == "Some text" || x.Parameter2 == "Some text" || x.Parameter3 == "Some text"
It’s not hard to do x =>, but how to create those many OR operators?
I know we have Expression.Or method, but it only accepts 2 arguments.
Thanks.
>Solution :
So you just compile them together
psuedo code:
firstOr = Expression.Or(x.Parameter2 == "some test", x.Parameter3 == "sometest")
secondOr = Expression.Or(firstOr, x.Parameter1 == "Some text");
Then all you do is evaluate the secondOr
These are expression trees , and therefor you compose them together.
when you have multiple elements, segment as you would with a mathematical expression, put parenthesis around parts:
1 + 2 + 5 = 8
this is
(1 + 2) + 5 = 8
So we’ve turned 1 expression into a composition of 2 expressions.