Win Phone 7 quiz app - windows-phone-7

Question

Could any1 please suggest a method by which i can store all my questions , Multiple Choice answers and the correct answer. So that i can call them and then display in a text box and radio buttons . And as when the user answers a question correctly i should be able to move to the next question.
This was my approach. Used data serialization, created a class with Data memebers which will store question id , questions and answers. then created an object for it in while page is loading. But i am unable to display the questions. Please help me out.

Answer 1

Depending on the number of questions, you might find it easier and faster to use a local database.

Answer 2

I am a little confused at your approach. Serialization by itself doesnt actually persist data. Perhaps that is your problem. I have found that storing the XML to IsolatedStorage is one of the easier ways to persist data.
I created an IsolatedStorage class that looks like this for saving an XDocument object.
public static void SaveDataToIsolatedStorage(string filePath, FileMode fileMode, XDocument xDoc)
{
using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())
{
using (IsolatedStorageFileStream location = new IsolatedStorageFileStream(filePath, fileMode, storage))
{
System.IO.StreamWriter file = new System.IO.StreamWriter(location);
xDoc.Save(file);
}
}
}
Here is my reader.
private static XDocument ReadDataFromIsolatedStorageXmlDoc()
{
using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())
{
if (!storage.FileExists(filePath))
{
return new XDocument();
}
using (var isoFileStream = new IsolatedStorageFileStream(filePath, FileMode.OpenOrCreate, storage))
{
using (XmlReader reader = XmlReader.Create(isoFileStream))
{
return XDocument.Load(reader);
}
}
}
}