/// <summary>
/// Checks if all fields are empty or not. If username and password is not empty
/// logs in the user
/// </summary>
private void Login()
{
UsersList = Task.Run(async() => await usersServices.GetUsersAsync()).Result;
if (string.IsNullOrEmpty(Username) || string.IsNullOrEmpty(Password))
{
Application.Current.MainPage.DisplayAlert("Empty values", "Please enter Username and Password", "OK");
}
else
{
//Executes when login button is clicked
if (DataCollections.UserExists(Username, Password, UsersList))
{
Application.Current.MainPage.DisplayAlert("Login Success", "", "OK");
Application.Current.MainPage.Navigation.PushAsync(new MainPage());
}
else
{
Application.Current.MainPage.DisplayAlert("Login Fail", "Please enter correct username and password", "OK");
}
}
}