static public ObservableCollection <Survey> deserialize(string Content)
{
ObservableCollection <Survey> surveys = new ObservableCollection <Survey>();
List <Question> questions = new List <Question>();
int iter = 0;
char i = Content[iter];
string count_surveys = "";
while (i != '~')
{
count_surveys += i.ToString();
iter++;
i = Content[iter];
}
int Count_Surveys = Int32.Parse(count_surveys);
for (int j = 0; j < Count_Surveys; j++)
{
string count_questions = "";
string id = "";
questions = new List <Question>();
iter++;
i = Content[iter];
while (i != '~')
{
id += i.ToString();
iter++;
i = Content[iter];
}
iter++;
i = Content[iter];
while (i != '~')
{
count_questions += i.ToString();
iter++;
i = Content[iter];
}
int Count_Questions = Int32.Parse(count_questions);
for (int k = 0; k < Count_Questions; k++)
{
iter++;
i = Content[iter];
string typequestion = "";
while (i != '~')
{
typequestion += i.ToString();
iter++;
i = Content[iter];
}
if (typequestion.Contains("Text"))
{
KeyValuePair <Text_Question, int> Pair = Serializable_Questions.deserialize_Text_Question(Content, iter);
questions.Add(Pair.Key);
iter = Pair.Value;
}
else if (typequestion.Contains("Multible") || typequestion.Contains("MultiChoice") || typequestion.Contains("DropDown"))
{
KeyValuePair <Multible, int> Pair = Serializable_Questions.deserialize_MultibleChoice(Content, iter, typequestion);
questions.Add(Pair.Key);
iter = Pair.Value;
}
//else if (typequestion.Contains("DropDown"))
//{
// KeyValuePair<DropDown, int> Pair = Serializable_Questions.deserialize_DropDown(Content, iter);
// questions.Add(Pair.Key);
// iter = Pair.Value;
//}
else if (typequestion.Contains("Slider"))
{
KeyValuePair <Slider_Question, int> Pair = Serializable_Questions.deserialize_Slider(Content, iter);
questions.Add(Pair.Key);
iter = Pair.Value;
}
//else if (typequestion.Contains("TextDescription"))
//{
// Question question = new Question(TypeQuestion.TextDescription, Int32.Parse(id));
// questions.Add(question);
//}
}
iter++;
i = Content[iter];
string user = "";
string title = "";
string description = "";
string date_publish = "";
string number_of = "";
string type = "";
while (i != '~')
{
user += i.ToString();
iter++;
i = Content[iter];
}
iter++;
i = Content[iter];
while (i != '~')
{
title += i.ToString();
iter++;
i = Content[iter];
}
iter++;
i = Content[iter];
while (i != '~')
{
description += i.ToString();
iter++;
i = Content[iter];
}
iter++;
i = Content[iter];
while (i != '~')
{
number_of += i.ToString();
iter++;
i = Content[iter];
}
iter++;
i = Content[iter];
while (i != '~')
{
type += i.ToString();
iter++;
i = Content[iter];
}
iter++;
i = Content[iter];
while (i != '~')
{
date_publish += i.ToString();
iter++;
i = Content[iter];
}
Survey survey = new Survey(questions, user, title, description, date_publish);
survey.Id = Int32.Parse(id);
survey.Number_of_Participants = Int32.Parse(number_of);
TypeSurvey _type = TypeSurvey.Education;
if (type.Equals("Sport"))
{
_type = TypeSurvey.Sport;
}
else if (type.Equals("Marketing"))
{
_type = TypeSurvey.Marketing;
}
else if (type.Equals("Other"))
{
_type = TypeSurvey.Other;
}
survey.type_Property = _type;
surveys.Add(survey);
}
return(surveys);
}
private async void Save_Survey(object sender, EventArgs e, TypeSurvey type)
{
string content;
List <Question> list = new List <Question>();
folder = FileSystem.Current.LocalStorage;
Survey survey = new Survey(list, username, title, description, (DateTime.Now.ToString("dddd, dd MMMM yyyy HH:mm:ss")).Substring(0, DateTime.Now.ToString("dddd, dd MMMM yyyy HH:mm:ss").Length - 8));
survey.type_Property = type;
ExistenceCheckResult Result = await folder.CheckExistsAsync("foldersurveys" + username);
if (Result != ExistenceCheckResult.FolderExists)
{
folder = await folder.CreateFolderAsync("foldersurveys" + username, CreationCollisionOption.ReplaceExisting);
}
else
{
folder = await folder.CreateFolderAsync("foldersurveys" + username, CreationCollisionOption.OpenIfExists);
}
Result = await folder.CheckExistsAsync("filesurveys" + username);
if (Result != ExistenceCheckResult.FileExists)
{
file = await folder.CreateFileAsync("filesurveys" + username, CreationCollisionOption.ReplaceExisting);
survey.Id = 1;
ListSurveys.Add(survey);
content = Serializable_Survey.serialize(ListSurveys);
await file.WriteAllTextAsync(content);
Full_Lists_Surveys();
if (CheckNetwork.Check_Connectivity())
{
SurveysServices S_S1 = new SurveysServices();
S_S1.Set_UrlApi("SaveSurveys/");
await S_S1.PostSurveysAsync(survey);
}
stackEducation.IsVisible = false;
Cancel(sender, e);
return;
}
file = await folder.CreateFileAsync("filesurveys" + username, CreationCollisionOption.OpenIfExists);
content = await file.ReadAllTextAsync();
ListSurveys = Serializable_Survey.deserialize(content).ToList();
if (ListSurveys.Count != 0)
{
survey.Id = ListSurveys[ListSurveys.Count - 1].Id + 1;
}
else
{
survey.Id = 1;
}
ListSurveys.Add(survey);
content = Serializable_Survey.serialize(ListSurveys);
await file.WriteAllTextAsync(content);
Full_Lists_Surveys();
if (CheckNetwork.Check_Connectivity())
{
SurveysServices S_S = new SurveysServices();
S_S.Set_UrlApi("SaveSurveys/");
await S_S.PostSurveysAsync(survey);
}
stackEducation.IsVisible = false;
Cancel(sender, e);
}
