Exemplo n.º 1
0
        private void BookToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            List <LibraryItem> items;     // List of library items

            items = _lib.GetItemsList();

            if ((items.Count() == 0))
            {
                MessageBox.Show("Must have a book to edit!");
            }
            else
            {
                BookSelectionForm bookSelectForm = new BookSelectionForm(items); // The return dialog box form
                DialogResult      result         = bookSelectForm.ShowDialog();  // Show form as dialog and store result

                if (result == DialogResult.OK)
                {
                    LibraryBook b  = (LibraryBook)_lib._items[bookSelectForm.ItemIndex];
                    BookForm    bf = new BookForm();
                    bf.ItemTitle         = b.Title;
                    bf.ItemPublisher     = b.Publisher;
                    bf.ItemCopyrightYear = b.CopyrightYear.ToString();
                    bf.ItemLoanPeriod    = b.LoanPeriod.ToString();
                    bf.ItemCallNumber    = b.CallNumber;
                    bf.BookAuthor        = b.Author;

                    DialogResult result1 = bf.ShowDialog();

                    if (result1 == DialogResult.OK)
                    {
                        b.Title         = bf.ItemTitle;
                        b.Publisher     = bf.ItemPublisher;
                        b.CopyrightYear = int.Parse(bf.ItemCopyrightYear);
                        b.LoanPeriod    = int.Parse(bf.ItemLoanPeriod);
                        b.CallNumber    = bf.ItemCallNumber;
                        b.Author        = bf.BookAuthor;
                    }
                }
                bookSelectForm.Dispose();
            }
        }
Exemplo n.º 2
0
        // Precondition:  theCopyrightYear >= 0 and theLoanPeriod >= 0
        // Postcondition: A library book has been created with the specified
        //                values for title, publisher, copyright year, loan period,
        //                call number, and author. The item is not checked out.
        //                The book has been added to the Library.
        public bool AddLibraryBook(String theTitle, String thePublisher, int theCopyrightYear,
                                   int theLoanPeriod, String theCallNumber, String theAuthor)
        {
            // create the new boook
            LibraryBook newBook = new LibraryBook(theTitle, thePublisher, theCopyrightYear,
                                                  theLoanPeriod, theCallNumber, theAuthor);

            // item callnum doesn't exist
            if (!libraryItems.ContainsKey(theCallNumber))
            {
                // add the book to dict
                libraryItems.Add(theCallNumber, newBook);

                _items.Add(new LibraryBook(theTitle, thePublisher, theCopyrightYear, theLoanPeriod,
                                           theCallNumber, theAuthor));
                return(SUCCESSFUL_ADD);
            }
            else
            {
                return(FAILED_ADD);
            }
        }
Exemplo n.º 3
0
        //Precondition: none
        //Postcondition: Outputs the values of the selected book into the edit book form
        private void bookButton_Click(object sender, EventArgs e)
        {
            LibraryBook b = _lib._patrons[BookIndex];

            BookForm pf = new BookForm();

            pf.BookAuthor = b.Author;

            pf.ItemCopyrightYear = b.CopyrightYear;

            pf.ItemCallNumber = b.CallNumber;

            pf.ItemLoanPeriod = b.LoanPeriod;

            pf.ItemPublisher = b.Publisher;

            pf.ItemTitle = b.Title;

            DialogResult result = pf.ShowDialog();

            //Precondition: The result is valid
            //Postcondition: Outputs the values of the selected book into the edit book form
            if (result == DialogResult.OK)
            {
                b.Author = pf.BookAuthor;

                b.CopyrightYear = pf.ItemCopyrightYear;

                b.CallNumber = pf.ItemCallNumber;

                b.LoanPeriod = pf.ItemLoanPeriod;

                b.Publisher = pf.ItemPublisher;

                b.Title = pf.ItemTitle;
            }
        }
Exemplo n.º 4
0
        private void BookToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            List <LibraryItem> items; // List of items

            items = _lib.GetItemsList();


            if (items.Count() == 0) // Must have items
            {
                MessageBox.Show("Must have books to edit!", "Edit Patron Error");
            }
            else
            {
                SelectBookForm selectBookForm = new SelectBookForm(items); // The Select Book dialog box form load with items

                DialogResult result = selectBookForm.ShowDialog();         // Show form as dialog and stores result

                if (result == DialogResult.OK)                             // Only add if OK
                {
                    try
                    {
                        BookForm bookForm = new BookForm(); // The patron dialog box form


                        LibraryBook selected = (LibraryBook)items[selectBookForm.BookIndex]; //carryovers the selected book's properties into the new form
                        bookForm.ItemTitle         = selected.Title;                         // sets itemTitle property to one the user selected
                        bookForm.ItemPublisher     = selected.Publisher;                     // sets ItemPublisherTxt property to one the user selected
                        bookForm.ItemCopyrightYear = selected.CopyrightYear.ToString();      // sets ItemCopyrightYearsTxt property to one the user selected
                        bookForm.ItemLoanPeriod    = selected.LoanPeriod.ToString();         // sets LoanPeriodTxt property to one the user selected
                        bookForm.ItemCallNumber    = selected.CallNumber;                    // sets ItemCallNumberTxt  property to one user selected
                        bookForm.BookAuthor        = selected.Author;                        // sets bookAuthorTxt property to one user selected



                        bookForm.ShowDialog();                                              // Show form as dialog and store result
                        if (result == DialogResult.OK)                                      // Only add if OK
                        {
                            selected.Title         = bookForm.ItemTitle;                    // sets Title to input
                            selected.Publisher     = bookForm.ItemPublisher;                // sets Publisher to input
                            selected.CopyrightYear = int.Parse(bookForm.ItemCopyrightYear); // sets CopyrightYears to input
                            selected.LoanPeriod    = int.Parse(bookForm.ItemLoanPeriod);    // sets Loan Period to input
                            selected.CallNumber    = bookForm.ItemCallNumber;               // sets Call Number to input
                            selected.Author        = bookForm.BookAuthor;                   // sets Call Number to input
                        }

                        bookForm.Dispose(); // Good .NET practice - will get garbage collected anyway
                    }

                    catch (ArgumentOutOfRangeException)
                    {
                        MessageBox.Show("Enter Input into the Proper Field", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }

                    catch (InvalidOperationException)
                    {
                        MessageBox.Show("Invalid Operation", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }

                    catch (FormatException)
                    {
                        MessageBox.Show("Please Enter Correct Format", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }

                selectBookForm.Dispose(); // Good .NET practice - will get garbage collected anyway
            }
        }
Exemplo n.º 5
0
        // Precondition:  Edit, Book menu item activated
        // Postcondition: The book selected from the library has been edited
        //                with the new information replacing the existing object's
        //                properties
        private void bookToolStripMenuItem1_Click(object sender, EventArgs e)
        {
            List <LibraryItem> bookItems; // List of items that are books
            List <LibraryItem> items;     // List of library items

            items     = _lib.GetItemsList();
            bookItems = new List <LibraryItem>();

            for (int i = 0; i < items.Count(); ++i)
            {
                if (items[i] is LibraryBook) // Book?
                {
                    bookItems.Add(items[i]);
                }
            }

            if ((bookItems.Count() == 0)) // Must have books to edit
            {
                MessageBox.Show("Must have books to edit!", "Edit Error");
            }
            else
            {
                ReturnForm siForm = new ReturnForm(bookItems); // The select item dialog box form
                                                               // Just reused ReturnForm, they are identical
                siForm.Text = "Edit Book";                     // Change return form's title to match new purpose

                DialogResult result = siForm.ShowDialog();     // Show form as dialog and store result

                if (result == DialogResult.OK)                 // Only edit if OK
                {
                    int selectedIndex;                         // Index of selected item

                    selectedIndex = siForm.ItemIndex;

                    if (selectedIndex >= 0)                                             // -1 if didn't select item from combo box (should never happen!)
                    {
                        LibraryBook editBook = bookItems[selectedIndex] as LibraryBook; // Book being edited

                        //LibraryBook editBook = (LibraryBook)bookItems[selectedIndex]; // Book being edited
                        // Need downcast to get to Author
                        BookForm bookForm = new BookForm(); // The book dialog box form

                        // Populate form fields from selected book
                        bookForm.ItemTitle         = editBook.Title;
                        bookForm.ItemPublisher     = editBook.Publisher;
                        bookForm.ItemCallNumber    = editBook.CallNumber;
                        bookForm.ItemCopyrightYear = editBook.CopyrightYear.ToString("D4"); // ToString since property is String on form
                        bookForm.ItemLoanPeriod    = editBook.LoanPeriod.ToString();        // ToString since property is String on form
                        bookForm.BookAuthor        = editBook.Author;

                        DialogResult editResult = bookForm.ShowDialog(); // Show form as dialog and store result

                        if (editResult == DialogResult.OK)               // Only update book if OK
                        {
                            // Edit book properties using form fields
                            try
                            {
                                //Edits the item dictionary so that it isn't corrupted due to the keys changing
                                //_lib.ChangeItemKey(bookItems[selectedIndex].CallNumber, editBook.CallNumber, editBook);

                                editBook.Title     = bookForm.ItemTitle;
                                editBook.Publisher = bookForm.ItemPublisher;
                                //editBook.CallNumber = bookForm.ItemCallNumber; //(Edited out to prevent corruption of
                                //dictionary
                                editBook.Author        = bookForm.BookAuthor;
                                editBook.CopyrightYear = int.Parse(bookForm.ItemCopyrightYear);
                                editBook.LoanPeriod    = int.Parse(bookForm.ItemLoanPeriod);
                            }
                            catch (FormatException) // This should never happen if form validation works!
                            {
                                MessageBox.Show("Problem with Book Validation!", "Validation Error");
                            }
                        }
                        bookForm.Dispose(); // Good .NET practice - will get garbage collected anyway
                    }
                }
                siForm.Dispose(); // Good .NET practice - will get garbage collected anyway
            }
        }