Доработка лабораторной работы
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@ -85,57 +85,52 @@ public class StorageCollection<T>
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}
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/// <summary>
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/// Сохранение информации по автомобилям в хранилище в файл
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/// </summary>
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/// <param name="filename">Путь и имя файла</param>
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/// <returns>true - сохранение прошло успешно, false - ошибка при сохранении данных</returns>
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public bool SaveData(string filename)
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/// Сохранение информации по автомобилям в хранилище в файл
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/// </summary>
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/// <param name="filename">Путь и имя файла</param>
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/// <returns>true - сохранение прошло успешно, false - ошибка при сохранении данных</returns>
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public bool SaveData(string filename)
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{
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if (_storages.Count == 0)
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{
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return false;
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}
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if (File.Exists(filename))
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{
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File.Delete(filename);
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}
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StringBuilder sb = new();
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sb.Append(_collectionKey);
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foreach (KeyValuePair<string, ICollectionGenericObjects<T>> value in _storages)
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using (StreamWriter writer = new StreamWriter(filename))
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{
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sb.Append(Environment.NewLine);
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// не сохраняем пустые коллекции
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if (value.Value.Count == 0)
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writer.Write(_collectionKey);
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foreach (KeyValuePair<string, ICollectionGenericObjects<T>> value in _storages)
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{
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continue;
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}
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sb.Append(value.Key);
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sb.Append(_separatorForKeyValue);
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sb.Append(value.Value.GetCollectionType);
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sb.Append(_separatorForKeyValue);
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sb.Append(value.Value.MaxCount);
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sb.Append(_separatorForKeyValue);
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foreach (T? item in value.Value.GetItems())
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{
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string data = item?.GetDataForSave() ?? string.Empty;
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if (string.IsNullOrEmpty(data))
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StringBuilder sb = new();
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sb.Append(Environment.NewLine);
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// не сохраняем пустые коллекции
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if (value.Value.Count == 0)
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{
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continue;
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}
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sb.Append(data);
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sb.Append(_separatorItems);
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sb.Append(value.Key);
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sb.Append(_separatorForKeyValue);
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sb.Append(value.Value.GetCollectionType);
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sb.Append(_separatorForKeyValue);
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sb.Append(value.Value.MaxCount);
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sb.Append(_separatorForKeyValue);
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foreach (T? item in value.Value.GetItems())
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{
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string data = item?.GetDataForSave() ?? string.Empty;
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if (string.IsNullOrEmpty(data))
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{
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continue;
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}
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sb.Append(data);
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sb.Append(_separatorItems);
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}
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writer.Write(sb);
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}
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}
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using FileStream fs = new(filename, FileMode.Create);
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byte[] info = new UTF8Encoding(true).GetBytes(sb.ToString());
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fs.Write(info, 0, info.Length);
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}
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return true;
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}
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@ -150,63 +145,48 @@ public class StorageCollection<T>
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{
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return false;
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}
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string bufferTextFromFile = "";
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using (FileStream fs = new(filename, FileMode.Open))
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using (StreamReader fs = File.OpenText(filename))
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{
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byte[] b = new byte[fs.Length];
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UTF8Encoding temp = new(true);
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while (fs.Read(b, 0, b.Length) > 0)
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{
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bufferTextFromFile += temp.GetString(b);
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}
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}
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string[] strs = bufferTextFromFile.Split(new char[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries);
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if (strs == null || strs.Length == 0)
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{
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return false;
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}
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if (!strs[0].Equals(_collectionKey))
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{
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//если нет такой записи, то это не те данные
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return false;
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}
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_storages.Clear();
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foreach (string data in strs)
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{
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string[] record = data.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
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if (record.Length != 4)
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{
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continue;
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}
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CollectionType collectionType = (CollectionType)Enum.Parse(typeof(CollectionType), record[1]);
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ICollectionGenericObjects<T>? collection = StorageCollection<T>.CreateCollection(collectionType);
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if (collection == null)
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string str = fs.ReadLine();
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if (str == null || str.Length == 0)
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{
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return false;
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}
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collection.MaxCount = Convert.ToInt32(record[2]);
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string[] set = record[3].Split(_separatorItems, StringSplitOptions.RemoveEmptyEntries);
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foreach (string elem in set)
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if (!str.StartsWith(_collectionKey))
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{
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if (elem?.CreateDrawingAirplan() is T airplan)
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return false;
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}
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_storages.Clear();
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string strs = "";
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while ((strs = fs.ReadLine()) != null)
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{
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string[] record = strs.Split(_separatorForKeyValue, StringSplitOptions.RemoveEmptyEntries);
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if (record.Length != 4)
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{
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if (collection.Insert(airplan) == -1)
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continue;
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}
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CollectionType collectionType = (CollectionType)Enum.Parse(typeof(CollectionType), record[1]);
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ICollectionGenericObjects<T>? collection = StorageCollection<T>.CreateCollection(collectionType);
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if (collection == null)
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{
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return false;
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}
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collection.MaxCount = Convert.ToInt32(record[2]);
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string[] set = record[3].Split(_separatorItems, StringSplitOptions.RemoveEmptyEntries);
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foreach (string elem in set)
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{
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if (elem?. CreateDrawingAirplan() is T ship)
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{
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return false;
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if (collection.Insert(ship) == -1)
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{
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return false;
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}
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}
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}
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_storages.Add(record[0], collection);
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}
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_storages.Add(record[0], collection);
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return true;
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}
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return true;
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}
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/// <summary>
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@ -69,10 +69,10 @@ public partial class FormAirplanConfig : Form
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}
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/// <summary>
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/// Проверка получаемой информации (ее типа на соответствие требуемому)
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/// Проверка получаемой информации(ее типа на соответствие требуемому)
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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/// <param name = "sender" ></ param >
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/// < param name="e"></param>
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private void PanelObject_DragEnter(object sender, DragEventArgs e)
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{
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e.Effect = e.Data?.GetDataPresent(DataFormats.Text) ?? false ? DragDropEffects.Copy : DragDropEffects.None;
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@ -81,8 +81,8 @@ public partial class FormAirplanConfig : Form
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/// <summary>
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/// Действия при приеме перетаскиваемой информации
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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/// <param name = "sender" ></ param >
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/// < param name="e"></param>
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private void PanelObject_DragDrop(object sender, DragEventArgs e)
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{
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switch (e.Data?.GetData(DataFormats.Text)?.ToString())
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@ -102,8 +102,8 @@ public partial class FormAirplanConfig : Form
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/// <summary>
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/// Передаем информацию при нажатии на Panel
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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/// <param name = "sender" ></ param >
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/// < param name="e"></param>
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private void Panel_MouseDown(object? sender, MouseEventArgs e)
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{
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(sender as Control)?.DoDragDrop((sender as Control)?.BackColor, DragDropEffects.Move | DragDropEffects.Copy);
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