Building an OrderBy Lambda expression based on child entity's property

Question

I\'m trying to generate a LINQ OrderBy clause using lambda expressions with an input of the column name of an entity as a string (in the \"sortOn\" variable bel

Answer 1

This will generate proper lambda expression:

var sortOn = "Category.Description";
var param = Expression.Parameter(typeof(Product), "p");
var parts = sortOn.Split('.');

Expression parent = param;

foreach (var part in parts)
{
    parent = Expression.Property(parent, part);
}

var sortExpression = Expression.Lambda>(parent, param);