Phone7, another IsolatedStorageFile problem - windows-phone-7

Question

I want to save text from a textbox to the internalStorage and load it from there...
The saving-part works fine. But the loading won't work I tried many tutorials already.
private void button2_Click(object sender, RoutedEventArgs e)
{
//get selected FileName from listBox
string selItem = listBox1.SelectedItem.ToString();
IsolatedStorageFile myStore = IsolatedStorageFile.GetUserStoreForApplication();
if (selItem != null)
{
IsolatedStorageFileStream fileStream = store.OpenFile(selItem, FileMode.Open, FileAccess.Read);
using (StreamReader sr = new StreamReader(fileStream))
{
String line = "";
//Debug.WriteLine("ReadLine");
if ((line = sr.ReadLine()) != null)
{
//Debug.WriteLine("ReadLineText");
textBox1.Text = line;
}
sr.Close();
}
fileStream.Close();
}
}
Instead of:
if ((line = sr.ReadLine()) != null)
{
//Debug.WriteLine("ReadLineText");
textBox1.Text = line;
I've tried many possibilities like: textBox1.Text = sr.ReadLine(); and so on..
The curious thing about he code is: If I enter for example:
IsolatedStorageFileStream fileStream = store.OpenFile("text0.txt", FileMode.Open, FileAccess.Read);
It works fine for the single file text0.txt.
Would be really really great if someone give me some tips to fix the code.
Thanks in advance..

Answer 1

this is how I open an ISF Stream
IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication();
IsolatedStorageFileStream stream = new IsolatedStorageFileStream(filename, FileMode.OpenOrCreate, isf); // loads from isolated storage

Answer 2

FYI: don't try to test without phone if you want to work with the isolated storage.
this finally works for me:
private void button2_Click(object sender, RoutedEventArgs e)
{
//get fileName
string filename = listBox1.SelectedItem.ToString();
try
{
IsolatedStorageFileStream stream = new IsolatedStorageFileStream(filename, FileMode.OpenOrCreate, store); // loads from isolated storage
//Debug.WriteLine(stream.CanRead);
StreamReader sr = new StreamReader(stream);
String lines = sr.ReadToEnd().ToString();
if (lines != null)
{
textBox1.Text = lines;
}
stream.Close();
sr.Close();
}
catch (Exception)
{
throw;
}
}
}
Maybe you see I killed the using(..) and put in a little check on "Null". I think the main cause was that there was no phone present to test the code.
Thank you very much indeed :-)))