Finding an item in a List<T>

Question

I have the follow example:

public class Commands
{
    public int ID { get; set; }
    public List<string> Alias { get; set; }
}

public class UserAccess
{
    public int AccessID { get; set; }
    // other stuff not needed for the question
    public List<Commands> AllowedCommands { get; set; }
}

Now I wanted to implement on the UserAccess a way to return the command ID or NULL if no Alias were found on the list, see a dirty example of what I am saying below HasCommand:

public class UserAccess
{
    public ID { get; set; }
    // other stuff not needed for the question
    public List<Commands> AllowedCommands { get; set; }

    public Commands HasCommand(string cmd)
    {
        foreach (Commands item in this.AllowedCommands)
        {
            if (item.Alias.Find(x => string.Equals(x, cmd, StringComparison.OrdinalIgnoreCase)) != null)
                return item;
        }
        return null;
    }
}

• My question is what would be the most efficient way to run or implement the HasCommand method ?

• Or is there a better way to implement it into the UserAccess ?

Answer 1

Can be shortened a little bit

public Commands HasCommand(string cmd)
{
    return AllowedCommands.FirstOrDefault(c => c.Alias.Contains(cmd, StringComparer.OrdinalIgnoreCase));

}

but it's pretty much the same thing.