Get expression parameter name
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01-10-2019 - |
Question
I need to get the name of a expression parameter. What i want to do is similar to what FluentNhibernate does with column mapping:
Map(x => x.Name)
From this, i need "Name".
How do I do this?
I can get x
by doing this:
Expression<Func<User, object>> exp = x => x.Id;
exp.Parameters[0].Name;
But im not able to get "Name". Note that I dont have any instance of T i can invoke on. Thanks
Solution
(expr.Body as MemberExpression).Member.Name
As the expression returns object
, the body will be wrapped in a Convert expression.
The following should work.
((expr.Body as UnaryExpression).Operand as MemberExpression).Member.Name
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