private async void openRecordQuizAnswers()
{
//I have to put this text here to make sure the Answer List is ready when the RecordQuiz Answers page is opened.
AnswerManager myAnswerManager = new AnswerManager();
myAnswerManager.populateAnswers();
await Navigation.PushAsync(new RecordQuizAnswers());
}
private void PopulateUserList()
{
AnswerManager myAnswerManager = new AnswerManager();
List <string> existingUsers = myAnswerManager.GetAllUserNames();
TableSection section = new TableSection();
foreach (String user in existingUsers)
{
Label lblUser = new Label();
lblUser.Text = user;
lblUser.FontSize = Device.GetNamedSize(NamedSize.Medium, typeof(Label));
ViewCellHeader = new ViewCell()
{
View = new StackLayout
{
Margin = new Thickness(0, 10, 0, 0),
Orientation = StackOrientation.Vertical,
VerticalOptions = LayoutOptions.Center,
Children =
{
new StackLayout
{
Orientation = StackOrientation.Horizontal,
Children =
{
lblUser
}
}
}
}
};
ViewCellHeader.Tapped += (sender, e) =>
{
//record which row item was clicked.
//I beleieve that there should be a method of passing data to a new page
//Like you can in iOS and Android but I was unable to find the Xamarin equivalent.
List <string> detailsClicked = user.Split('_').ToList <string>();
currentUsername = detailsClicked[0];
ChooseQuiz.quizIdClicked = detailsClicked[1];
//Open the record quiz page
openRecordQuizAnswers();
};
//Add the viewcell to the section
section.Add(ViewCellHeader);
}
//Add the section to the tableview
tblExistingUsers.Root.Add(new TableSection[] { section });
}
public RecordQuizAnswers()
{
InitializeComponent();
//Set up the UI structure
tblQuizes = new TableView
{
Intent = TableIntent.Data,
Root = new TableRoot("Questions"),
MinimumHeightRequest = 100,
// I have to put this line below so that Xamarin can render rows of different heights.
//Taken from https://forums.xamarin.com/discussion/17471/can-you-have-dynamic-cell-heights-with-either-the-listview-or-tableview-views
HasUnevenRows = true
};
Button btnSaveProgress = new Button
{
Text = "Save Progress",
HorizontalOptions = LayoutOptions.Center,
BackgroundColor = Xamarin.Forms.Color.FromHex("fa00ff")
};
btnSaveProgress.Clicked += (sender, e) =>
{
AnswerManager myAnswerManager = new AnswerManager();
myAnswerManager.WriteAnswersToDisk();
};
Button btnSubmit = new Button
{
Text = "Submit",
HorizontalOptions = LayoutOptions.Center,
BackgroundColor = Xamarin.Forms.Color.FromHex("fa00ff")
};
section = new TableSection();
this.Content = new StackLayout
{
Children =
{
tblQuizes,
btnSaveProgress,
btnSubmit
}
};
//Go and get the json data
ReadQuiz();
}
public void UpdateAnswerList(int qId, bool isMultiChc, bool isSelected, string ans)
{
bool wasfound = false;
if (!isMultiChc)
{
foreach (AnswerManager a in Answers)
{
//if the question already exists in the list
if (a.questionId == qId)
{
//It was found and updated
wasfound = true;
a.answer = ans;
}
}
}
if (isMultiChc)
{
foreach (AnswerManager a in Answers)
{
if (a.questionId == qId && a.answer == ans)
{
wasfound = true;
a.isMultipleChoiceSelected = isSelected;
}
}
}
//if the question does not exist then create it and add to the list
if (!wasfound)
{
AnswerManager anotherAnswer = new AnswerManager();
anotherAnswer.questionId = qId;
anotherAnswer.isMultipleChoice = isMultiChc;
anotherAnswer.answer = ans;
anotherAnswer.isMultipleChoiceSelected = isSelected;
Answers.Add(anotherAnswer);
}
}
