public void SavePhonebookToFile(CallerList callerList)
{
var dialogResult = SaveFileDialog();
if (dialogResult != DialogResult.OK)
{
return;
}
CreateFile(path);
if (fileStream == null)
{
return;
}
using (StreamWriter streamWriter = new StreamWriter(fileStream))
{
for (int i = 0; i < callerList.Count; i++)
{
Caller caller = callerList.GetAt(i);
streamWriter.WriteLine(caller.Record.Name + COLUMN_SEPARATOR + caller.Record.PhoneNumber);
}
}
}
public CallerList LoadPhonebookFromFile()
{
var dialogResult = OpenFileDialog();
if (dialogResult != DialogResult.OK)
{
return(null);
}
fileStream = File.OpenRead(path);
var callerList = new CallerList();
using (StreamReader streamReader = new StreamReader(fileStream))
{
while (!streamReader.EndOfStream)
{
string line = streamReader.ReadLine();
if (!string.IsNullOrEmpty(line))
{
string[] columns = line.Split(new string[] { COLUMN_SEPARATOR }, StringSplitOptions.RemoveEmptyEntries);
if (columns.Length == 2)
{
callerList.Add(new Caller(new Record(columns[0], columns[1])));
}
}
}
}
return(callerList);
}
public void LoadPhonebookFromFile()
{
var loadedCallerList = fileStream.LoadPhonebookFromFile();
if (loadedCallerList != null)
{
callerList = loadedCallerList;
}
}