private void addTransactionDetails()
{
for (int i = 0; i < borrowedBookList.Count; i++)
{
BookTransDetail k = new BookTransDetail();
k.TransactionID = B.transactionNo;
k.BookID = borrowedBookList[i];
k.DateDue = DateTime.Today.AddDays(21).Date;
k.RentalStatus = false;
context.BookTransDetails.Add(k);
}
}
private void updateTransactionDetailsAndFine()
{
BookTransDetail k = context.BookTransDetails.Where(x => x.BookID == returnBookID && !x.RentalStatus).First();
k.RentalStatus = true;
k.DateReturn = DateTime.Today.Date;
if (k.DateReturn > k.DateDue)
{
FineTran f = new FineTran();
f.MemberID = context.BookTransactions.Where(x => x.TransactionID == k.TransactionID).First().MemberID;
f.TransactionID = k.TransactionID;
f.FineAmount = Convert.ToDecimal(((Convert.ToDateTime(k.DateReturn) - k.DateDue).TotalDays) * 0.30);
f.FineStatus = false;
}
}
private void ExtendButton_Click(object sender, EventArgs e)
{
DateTime datedue = Convert.ToDateTime(dataGridView1.CurrentRow.Cells[3].Value.ToString());
int TrID = Convert.ToInt32(dataGridView1.CurrentRow.Cells[0].Value.ToString());
int BID = Convert.ToInt32(dataGridView1.CurrentRow.Cells[1].Value.ToString());
context = new LibrarySevenAEntities();
var QBT = context.BookTransactions.Where(x => x.TransactionID == TrID);
BookTransaction bk = QBT.First();
if (bk.OriginalDateDue == datedue)
{
var QBTD = context.BookTransDetails.Where(x => x.TransactionID == TrID && x.BookID == BID);
BookTransDetail btd = QBTD.First();
btd.DateDue = datedue.AddDays(21);
context.SaveChanges();
//refresh
context = new LibrarySevenAEntities();
List <BookTransaction> lbt = new List <BookTransaction>();
lbt = context.BookTransactions.Where(x => x.MemberID == memberID).ToList();
if (lbt.Count > 0)
{
List <object> lbtd = new List <object>();
for (int i = 0; i < lbt.Count; i++)
{
int temp = Convert.ToInt32(lbt[i].TransactionID.ToString());
var q = from x in context.BookTransDetails
where x.TransactionID == temp && x.RentalStatus == false
select new { x.TransactionID, x.BookID, x.book.BookTitle, x.DateDue };
if (q.ToList().Count > 0)
{
object bktd = q.ToList().First();
lbtd.Add(bktd);
}
}
dataGridView1.DataSource = lbtd;
this.dataGridView1.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
}
}
else
{
MessageBox.Show("Unable to extend, this book has previously been extended");
}
}
