Question

I have the following classes:

public class Menu
{
    public int Order { get; set; }
    public string Title { get; set; }
    public string Status { get; set; }
    public string Type { get; set; }
    public bool Default { get; set; }
    public string Link { get; set; }
    public string Notes { get; set; }
    public string Text { get; set; }
}

public class MenuItem
{
    public int Order { get; set; }
    public string Title { get; set; }
    public string Type { get; set; }
    public bool Default { get; set; }
    public string Link { get; set; }
}

Also this which returns ICollection

var menu = _menuRepository.GetPk(pk);

Can someone show me how I can use LINQ to:

a) Get the data from menu
b) Select only rows where Status = "00"
c) Order by Order
d) Put the data into the MenuItem class

I heard there are maybe two ways of coding this. Can anyone explain these and advise which would be better.

Answer 1

Try this:

var menuItems = _menuRepository.GetPk(pk)
    .Where(m => m.Status == "00")
    .OrderBy(m => m.Order)
    .Select(m => new MenuItem 
                 { 
                     Order = m.Order,
                     Title = m.Title,
                     Type = m.Type,
                     Default = m.Default,
                     Link = m.Link 
                 });

You can throw .ToList() at the end to materialize collection immediately.