entity-framework - 排序 DataGridView 实体框架

Question

    var type = typeof(T);
                var property = type.GetProperty(columnSelectName);
                var parameter = Expression.Parameter(type, "p");
                var propertyAccess = Expression.MakeMemberAccess(parameter, property);
                var orderByExp = Expression.Lambda(propertyAccess, parameter);

                if (dataGridView.Columns[e.ColumnIndex].HeaderCell.SortGlyphDirection != SortOrder.Ascending)
                {
                    MethodCallExpression resultExp = Expression.Call(typeof(Queryable), "OrderBy", new Type[] { type, property.PropertyType }, data.Expression, Expression.Quote(orderByExp));

                    bindingSource.DataSource = data.Provider.CreateQuery<T>(resultExp);

                    dataGridView.Columns[e.ColumnIndex].HeaderCell.SortGlyphDirection = SortOrder.Ascending;
                }


public partial class Logs
{
    public string UserName
    {
        get
        {
            if (this.id_user.HasValue)
                return this.Users.login;
            else
                return string.Empty;
        }
    }

    public string TypeName
    {
        get
        {
            TypeLogs typeLogs = (TypeLogs)this.type;

            switch (typeLogs)
            {
                case TypeLogs.LogOn:
                    return "Logowanie";
                case TypeLogs.LogOff:
                    return "Wylogowanie";
                case TypeLogs.LogOnFailed:
                    return "Nieudane logowanie";
                case TypeLogs.LogsDelete:
                    return "Usunięto logi";
                default:
                    return string.Empty;
            }
        }
    }

LINQ to Entities 不支持指定的类型成员“成员”。仅支持初始化程序、实体成员和实体导航属性。

LINQ to Entities 不支持指定的类型成员“成员”。仅支持初始化程序、实体成员和实体导航属性。