private void btnAdd_Click(object sender, EventArgs e)
{
try
{
string bookTitle = txtTitle.Text;
string publisher = txtPublisher.Text;
double price = double.Parse(txtPrice.Text);
int year = int.Parse(txtYear.Text);
int numOfPages = int.Parse(txtNumberPages.Text);
iSBN = int.Parse(txtISBN.Text);
switch (cmbBookType.SelectedIndex)
{
case 0:
double fileSize = double.Parse(txtFileSize.Text);
book = new EBook(bookTitle, price, publisher, year, iSBN, numOfPages, fileSize);
break;
case 1:
EnumTextBookType textBookType = (EnumTextBookType)cmbTextBookType.SelectedItem;
if (cmbTextBookType.SelectedIndex == 0) //HardCover
{
NumberOfHardCoverTextBook++;
}
else
{
NumberOfPaperTextBook++;
}
book = new TextBook(bookTitle, price, publisher, year, iSBN, numOfPages, textBookType);
break;
default:
book = null;
break;
}
bool result = AddBook(book);
string message = result ? "Added" : "Not Added";
try
{
if (result == false)
{
throw new InvalidISBNExaption();
}
}
catch (Exception exept)
{
MessageBox.Show(exept.Message);
}
MessageBox.Show(message);
}
catch (Exception exept)
{
MessageBox.Show(exept.Message);
}
}
public TextBook(string bookTitle, double price, string publisher, int year, int iSBN, int numberOfPages, EnumTextBookType bookType) : base(bookTitle, price, publisher, year, iSBN, numberOfPages)
{
BookType = bookType;
}
