void OnRegisterButtonClicked(object sender, EventArgs args)
{
User oUser = new User();
oUser.Name = "Rafi";
oUser.PhoneNo = "245245";
oUser.EmailID = "*****@*****.**";
var iResult = m_oBusinessFacade.RegisterUser(oUser).Result;
if (iResult == 0)
{
DisplayAlert("Error", "USer Registration Failed", "Cancel");
}
}