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();
}
}
// 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);
}
}
//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;
}
}
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
}
}
// 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
}
}
