linq case insensitive (without toUpper or toLower)

Question

public Articles GetByName(string name, Categories category, Companies company)
{
    var query = from article in session.Linq()
                where         


        

Answer 1

var query = from article in session.Linq()
           where string.Equals(article.Name,name, StringComparison.OrdinalIgnoreCase) &&
                 string.Equals(article.Category,category, StringComparison.OrdinalIgnoreCase) &&
                 string.Equals(article.Company,company, StringComparison.OrdinalIgnoreCase)
                        select article;

            return query.FirstOrDefault();

It will also handle when Name,Category,Company is null