/// <summary>
/// Get Category by Id.
/// </summary>
/// <param name="id">The Id you need categories for.</param>
/// <param name="categories">The List of all Categories.</param>
/// <returns>A Specific Category.</returns>
private Category GetCategoryById(long?id, PagedResult <Category> categories)
{
return(categories.Single(c => c.RecordId == id));
}
