protected void btnAdd_Click(object sender, EventArgs e)
{
LibrarayManagementSystemEntities1 libEntity = new LibrarayManagementSystemEntities1();
tbl_book book = new tbl_book();
book.BookName = txtBookName.Text;
book.Author = txtAuthor.Text;
book.Publication = txtPublication.Text;
book.Subject = txtSubject.Text;
book.NoOfCopies = Convert.ToInt32(txtQuantity.Text);
libEntity.AddTotbl_book(book);
libEntity.SaveChanges();
lblMessage.Text = "Book Add Successfulyl !";
}
