it s a csharp program about book store

BookStore
.........\BookStore
.........\.........\app.config
.........\.........\AppIcon.ico
.........\.........\BookEntities
.........\.........\............\BookMetaData
.........\.........\............\............\Author.cs
.........\.........\............\............\IBookMetaData.cs
.........\.........\............\............\PublishingHouse.cs
.........\.........\............\............\Tag.cs
.........\.........\............\............\YearOfPublishing.cs
.........\.........\............\BooksData
.........\.........\............\.........\Book.cs
.........\.........\............\.........\BooksData.cs
.........\.........\............\BooksManager.cs
.........\.........\............\SearchEngine
.........\.........\............\............\QueryDataCategory
.........\.........\............\............\.................\AuthorsQueryDataCategory.cs
.........\.........\............\............\.................\IQueryDataCategory.cs
.........\.........\............\............\.................\PublishingHousesQueryDataCategory.cs
.........\.........\............\............\.................\TagsQueryDataCategory.cs
.........\.........\............\............\.................\YearsOfPublishingQueryDataCategory.cs
.........\.........\............\............\QueryType
.........\.........\............\............\.........\ANDQueryType.cs
.........\.........\............\............\.........\IQueryType.cs
.........\.........\............\............\.........\ORQueryType.cs
.........\.........\............\............\SetOperations.cs
.........\.........\BookStore.csproj
.........\.........\BookStore.csproj.user
.........\.........\BookStoreGUI
.........\.........\............\AddNewItemForm.cs
.........\.........\............\AddNewItemForm.designer.cs
.........\.........\............\AddNewItemForm.resx
.........\.........\............\AuxiliaryTypes.cs
.........\.........\............\BackgroundGUITask
.........\.........\............\.................\BackgroundTask.cs
.........\.........\............\.................\WorkInProgressForm.cs
.........\.........\............\.................\WorkInProgressForm.designer.cs
.........\.........\............\.................\WorkInProgressForm.resx
.........\.........\............\BookDetails.cs
.........\.........\............\BookDetails.designer.cs
.........\.........\............\BookDetails.resx
.........\.........\............\BookQueryControl.cs
.........\.........\............\BookQueryControl.designer.cs
.........\.........\............\BookQueryControl.resx
.........\.........\............\BookSelectForm.cs
.........\.........\............\BookSelectForm.Designer.cs
.........\.........\............\BookSelectForm.resx
.........\.........\............\BooksListOperations.cs
.........\.........\............\MainForm.cs
.........\.........\............\MainForm.designer.cs
.........\.........\............\MainForm.resx
.........\.........\............\MainFormTabs
.........\.........\............\............\AddBooksTab.cs
.........\.........\............\............\SearchForBooksTab.cs
.........\.........\............\............\ViewBooksTab.cs
.........\.........\............\MultipleInstancesErrorForm.cs
.........\.........\............\MultipleInstancesErrorForm.designer.cs
.........\.........\............\MultipleInstancesErrorForm.resx
.........\.........\............\OptionsForm.cs
.........\.........\............\OptionsForm.designer.cs
.........\.........\............\OptionsForm.resx
.........\.........\............\RenameItemForm.cs
.........\.........\............\RenameItemForm.designer.cs
.........\.........\............\RenameItemForm.resx
.........\.........\DataAccess
.........\.........\..........\DatabaseManager.cs
.........\.........\..........\DBConfiguration
.........\.........\..........\...............\DBConfiguration.cs
.........\.........\..........\...............\DBSpecificConfiguration.cs
.........\.........\..........\IQueryAction
.........\.........\..........\............\IQueryAction.cs
.........\.....

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