how to get value of a definite Column name in c# / Linq?

Question

I want to know if it possible to get value of a definite columns name ? For exemple SELECT NAME FROM PERSON;

string NAME; <--- Column name
st         


        

Answer 1

You want to the source code in C# to create a linq query that compiles to SELECT NAME FROM PERSON under Linq to SQL or Linq to Entity Framework?

IEnumerable names = from x in context.PERSONS
                            select x.Name;

OR

IEnumerable names = context.PERSONS.Select(x => x.Name);

In Monad parlance you want a projection onto the Name property.

EDIT : You want to dynamically state which column?

string columnName = "Name";
ParameterExpression personExpression = Expression.Parameter(typeof(Person), "p");
Expression> column = Expression.Lambda>(Expression.PropertyOrField(personExpression, columnName), personExpression);

IEnumerable things = context.PERSONS.Select(column);