C#

public class Customer
{
    public int ID;
    public string EditSequence;
    public string Name;
    public bool IsActive;
    public int? ParentID;
}

UInt16

ushort DATA_TYPE = (ushort)row.Field<UInt16> ( "DATA_TYPE" );

public async Task<CompanyEntity> GetCompany(int id)
{
    using (var db = new JayhawkDB())
    {
        CompanyEntity results = null;

        try
        {
            var query = from x in db.Companies
                        where x.Id == id
                        select x;

            var record = query.FirstOrDefault<Company>();

            results = new CompanyEntity
            {
                Id = record.Id,
                CreatedById = record.CreatedById,
                CreatedDT = record.CreatedDt,
                DeletedById = record.DeletedById.GetValueOrDefault(),
                DeletedDT = record.DeletedDt.GetValueOrDefault(),
                CompanyName = record.CompanyName,
                Abbreviation = record.Abbreviation,
                Notes = record.Notes
            };
        }
        catch (Exception e)
        {
            throw;
        }

        return results;
    }
}

List<Key> PressedKeys = new List<Key>();

private void Window_KeyDown(object sender, KeyEventArgs e)
{
    //If key is pressed this stop resending
    if (!PressedKeys.Contains(e.Key))
    {
        PressedKeys.Add(e.Key);
        txtKeysDown.Text = String.Join(", ", PressedKeys);
    }

}

private void Window_KeyUp(object sender, KeyEventArgs e)
{
    PressedKeys.Remove(e.Key);
    txtKeysDown.Text = String.Join(", ", PressedKeys);
}

[DllImport("user32.dll", EntryPoint = "GetKeyboardState", SetLastError = true)]
private static extern bool NativeGetKeyboardState([Out] byte[] keyStates);

        private static bool GetKeyboardState(byte[] keyStates)
        {
            if (keyStates == null)
                throw new ArgumentNullException("keyState");
            if (keyStates.Length != 256)
                throw new ArgumentException("The buffer must be 256 bytes long.", "keyState");
            return NativeGetKeyboardState(keyStates);
        }

        private static byte[] GetKeyboardState()
        {
            byte[] keyStates = new byte[256];
            if (!GetKeyboardState(keyStates))
                throw new Win32Exception(Marshal.GetLastWin32Error());
            return keyStates;
        }

        private static bool AnyKeyPressed()
        {
            byte[] keyState = GetKeyboardState();
            // skip the mouse buttons
            return keyState.Skip(8).Any(state => (state & 0x80) != 0);
        }
    }

bool MyIsKeyDown(Key key)
{

    return (((byte)GetKeyboardState()[(int)key] & 0x80) & 0x80)>0;
}

private void Window_KeyDown(object sender, KeyEventArgs e)
{

    foreach (Key item in Enum.GetValues(typeof(Key)))
    {
        if (MyIsKeyDown(item))
        {
            if (!PressedKeys.Contains(e.Key))
            {
                PressedKeys.Add(e.Key);
                txtKeysDown.Text = String.Join(", ", PressedKeys);
            }
        }
    }

    ////If key is pressed this stop resending
    //if (!PressedKeys.Contains(e.Key))
    //{
    //    PressedKeys.Add(e.Key);
    //    txtKeysDown.Text = String.Join(", ", PressedKeys);
    //}

}