public SignUpViewModel()
{
SignUpCommand = new RelayParameterizedCommand(async(parameter) => await SignUpAsync(parameter));
LoginPageCommand = new RelayCommand(async() => await LoginAsync());
}
public LoginViewModel()
{
LoginCommand = new RelayParameterizedCommand(async(parameter) => await LoginAsync(parameter));
SignUpPageCommand = new RelayCommand(async() => await SignUpAsync());
}
