Add multiple contacts to SMS Compose Task from isolated storage file

Question

I am trying to make an SMS Compose Task from which I can send group messages. The user adds phone numbers to an isolated storage file and I intend to take the numbers from there.

How do I take the phone numbers from there?
Also how to delete numbers from the isolated storage file?

Here is my isolated storage file code:

private void SaveButton_Click(object sender, RoutedEventArgs e)
{
    string fileName = "SOS Contacts.txt";
    using (var isoStorage = IsolatedStorageFile.GetUserStoreForApplication())
    {
        // we need to check to see if the file exists
        if (!isoStorage.FileExists(fileName))
        {
            // file doesn't exist...time to create it.
            isoStorage.CreateFile(fileName);
        }
        // since we are appending to the file, we must use FileMode.Append

        using (var isoStream = new IsolatedStorageFileStream(fileName, FileMode.Append, isoStorage))
        {
            // opens the file and writes to it.
            using (var fileStream = new StreamWriter(isoStream)
            {
                fileStream.WriteLine(PhoneTextBox.Text);
            }
        }
       // you cannot read from a stream that you opened in FileMode.Append.  Therefore, we need
       //   to close the IsolatedStorageFileStream then open it again in a different FileMode.  Since we
       //   we are simply reading the file, we use FileMode.Open

       using (var isoStream = new IsolatedStorageFileStream(fileName, FileMode.Open, isoStorage))
       {
           // opens the file and reads it.
           using (var fileStream = new StreamReader(isoStream))
           {
               ResultTextBox.Text = fileStream.ReadToEnd();
           }
       }
   }
}

Answer 1

Did you try using the Application Settings using Isolated Storage to store and retrieve data. As you're saving into the Settings, you'll be able to retrieve it anywhere from your application.

Perfect sample would be this.

The following sample is from msdn:

http://code.msdn.microsoft.com/windowsapps/Using-Isolated-Storage-fd7a4233

Hope it helps!