ASP.NET

protected void Page_PreInit(object sender, EventArgs e)
       {
           List<string> keys = Request.Form.AllKeys.Where(key => key.Contains("txtDynamic")).ToList();
           int i = 1;
           foreach (string key in keys)
           {
               this.CreateTextBox("txtDynamic" + i);
               i++;
           }

       }
       protected void Page_Load(object sender, EventArgs e)
       {

       }
       protected void AddTextBox(object sender, EventArgs e)
       {
           int index = pn1TextBoxes.Controls.OfType<TextBox>().ToList().Count + 1;
           this.CreateTextBox("txtDynamic" + index);

       }
       private void CreateTextBox(string Id)
       {
           TextBox txt = new TextBox();
           txt.ID = Id;
               try
               {
                   pn1TextBoxes.Controls.Add(txt);
               }
               catch (Exception e )
               {
                   Response.Write(e.ToString());
               }

           Literal lt = new Literal();
           lt.Text = "<br/>";
           try
           {
               pn1TextBoxes.Controls.Add(lt);
           }
           catch (Exception e)
           {
              Response.Write(e.ToString());
           }

       }
   }

// Instead of this in the code
return RedirectToRoute("Index", "Home");

// I would like to have
return RedirectToRoute(Controllers.HomeController.DefaultRedirect);

// POST: odata/Products
 public IHttpActionResult Post([FromBody]  product Products)
 {
     ...
 }

// POST: odata/Products
 public IHttpActionResult Post([FromBody]  List<product> Products)
 {
     ...
 }

public class WEBSITE_COUNTRIES
{
    [BsonId]
    [BsonRepresentation(BsonType.ObjectId)]
    public ObjectId Id { get; set; }

    public string DisplayId { get; set; }
    public string LongName { get; set; }
    public string ShortName { get; set; }
    public bool Enabled { get; set; }

    public List<WEBSITE_STATES> States { get; set; }
}

// Inject a state/province
ObjectId US_VI_Id = ObjectId.GenerateNewId();
var state_VI = new WEBSITE_STATES() { Id = US_VI_Id, DisplayId = US_VI_Id.ToString(), CountryId = country.DisplayId, CountryCode = country.ShortName, LongName = "Virgin Islands", ShortName = "VI", Enabled = true }
await websiteStates.InsertOneAsync(state_VI);

// Let See if we can inject the States collection into Countries/States                            
WEBSITE_COUNTRIES country_US = await websiteCountries.Find(c => c.ShortName == country.ShortName).FirstOrDefaultAsync();
ICollection<WEBSITE_STATES> states_US = await websiteStates.FindSync(c => c.CountryCode == country.ShortName).ToListAsync();
// about 10 different tries here, such as loop states and insert, AddRange(0, states_US)

{
    "_id" : ObjectId("5b8080730cf709469424b9e2"),
    "DisplayId" : "5b8080730cf709469424b9e2",
    "LongName" : "United States",
    "ShortName" : "US",
    "Enabled" : true,
    "States" : []
}

public static async Task SeedAsync(IMongoDatabase _database)
{
    var websiteStates = _database.GetCollection<WEBSITE_STATES>("Website_States");

    // Check and see if we have any website users
    double totalDocuments = websiteStates.CountDocuments(FilterDefinition<WEBSITE_STATES>.Empty);
    if (totalDocuments == 0)
    {

        var websiteCountries = _database.GetCollection<WEBSITE_COUNTRIES>("Website_Countries");

        try
        {
            using (IAsyncCursor<WEBSITE_COUNTRIES> cursor = await websiteCountries.FindAsync(new BsonDocument()))
            {
                IEnumerable<WEBSITE_COUNTRIES> batch = cursor.Current; // batch is null here
                foreach (WEBSITE_COUNTRIES country in batch)
                {
                    Console.WriteLine(country.LongName);
                }
            }
        }
        catch(Exception ex)
        {
            Console.WriteLine(ex.Message.ToString());
        }                
    }            
}

public class UserRepository : IUserRepository
{
    private readonly MongoDBContext _context = null;
    public UserRepository(IOptions<Settings> settings)
    {
        _context = new MongoDBContext(settings);
    }

////////////////////////////////////////////////////////////

public async Task<IEnumerable<WEBSITE_USERS>> GetAllUsers()
{
    try
    {
        return await _context.WebsiteUsers
                .FindSync(_ => true).ToListAsync();
    }
    catch (Exception ex)
    {
        // log or manage the exception
        throw ex;
    }
}

public static void SeedData(Settings settings)
{
    IMongoDatabase _database = null;

    var client = new MongoClient(settings.MongoDB.Connection);
    if (client != null)
        _database = client.GetDatabase(settings.MongoDB.Database);

    // Seed the Databases
    WebsiteUsers.Seed(_database);
    var countryTask = WebsiteCountries.Seed(_database);
    var statesTask = WebsiteStates.SeedAsync(_database);

}