You can build an expression tree which contains accessing a given field by its name using
Expression.Field method. For example, you have the following code.
TestClass obj = new TestClass(); Console.WriteLine(obj.myField);
Here is the code that is required to build the same functionality using expression tree.
Expression fieldExpr = Expression.Field( Expression.Constant(obj), "myField" ); Console.WriteLine(Expression.Lambda<Func<int>>(fieldExpr).Compile()());