Comparing multiple entity properties against list of entities

Question

Consider this snippet of code:

var iList = new List<Entities.Ingredient>
{
    new Entities.Ingredient { Name = "tomato", Amount = 2.0 },
    new Entities.Ingredient { Name = "cheese", Amount = 100.0 }
};


var matches = new DataContext().Ingredients.Where(i => Comparer(i, iList));


private Boolean Comparer(Entities.Ingredient i, List<Entities.Ingredient> iList)
{
    foreach (var c in iList)
    {
        if (c.Name == iList.Name && c.Amount >= iList.Amount) return true;
    }

    return false;
}

Is there a more efficient way of doing this? Preferably without being too verbose; from x in y select z... If thats at all possible.

Answer 1

You could implement the IComparable interface on your class (Ingredient). That way you will at least keep the comparison code embedded in the class itself with no need for the extra method.
Here is a link:
http://www.c-sharpcorner.com/UploadFile/prasadh/IComparablePSD12062005010125AM/IComparablePSD.aspx