private ItemsCollection Load()
{
using (RijndaelManaged r = new RijndaelManaged())
{
SetCryptoKeys(r);
ICryptoTransform decryptor = r.CreateDecryptor(r.Key, r.IV);
using (Stream fileStream = File.Open("words.json", FileMode.OpenOrCreate, FileAccess.Read, FileShare.Read))
{
if (fileStream.Length == 0)
{
return(new ItemsCollection());
}
using (CryptoStream csDecrypt = new CryptoStream(fileStream, decryptor, CryptoStreamMode.Read))
{
using (StreamReader streamReader = new StreamReader(csDecrypt))
{
string content = streamReader.ReadToEnd();
string jsonString = string.IsNullOrWhiteSpace(content) ? "[]" : content;
ItemsCollection items = JsonConvert.DeserializeObject <ItemsCollection>(jsonString);
return(items);
}
}
}
}
}
public void Add(string voc, string translation, string hint)
{
ItemsCollection items = Load();
items.Add(voc, translation);
Save(items);
}
public void Remove(string voc)
{
ItemsCollection items = Load();
if (items[voc] != null)
{
items.Remove(voc);
}
Save(items);
}
private ItemsCollection Load()
{
using (Stream fileStream = File.Open("words.json", FileMode.OpenOrCreate))
{
using (StreamReader streamReader = new StreamReader(fileStream, Encoding.UTF8))
{
string content = streamReader.ReadToEnd();
string jsonString = string.IsNullOrWhiteSpace(content) ? "[]" : content;
ItemsCollection items = JsonConvert.DeserializeObject <ItemsCollection>(jsonString);
return(items);
}
}
}
private void Save(ItemsCollection items)
{
string jsonString = JsonConvert.SerializeObject(items);
byte[] buffer = Encoding.UTF8.GetBytes(jsonString);
//buffer = Encoding.ASCII.GetBytes(jsonString);
int count = 1;
Stream fileStream = File.Open("words.json", System.IO.FileMode.OpenOrCreate);
for (int offset = 0; offset < buffer.Length; offset++)
{
fileStream.Write(buffer, offset, count);
}
fileStream.Close();
}
private void Save(ItemsCollection items)
{
string jsonString = JsonConvert.SerializeObject(items);
using (RijndaelManaged r = new RijndaelManaged())
{
SetCryptoKeys(r);
ICryptoTransform encryptor = r.CreateEncryptor(r.Key, r.IV);
Stream fileStream = File.Open("words.json", System.IO.FileMode.OpenOrCreate);
using (CryptoStream csEncrypt = new CryptoStream(fileStream, encryptor, CryptoStreamMode.Write))
{
using (StreamWriter writer = new StreamWriter(csEncrypt))
{
writer.Write(jsonString);
}
}
fileStream.Close();
}
}