//the search methood that check the name or the ISBN
public bool GetObject(int type, TextBox text, TextBlock infotext, TextBlock bookName, Button Rent)
{
if (type == 0)// 0 == search by name
{
a = item[text.Text];
if (a != null)
{
infotext.Text = a.ToString();
bookName.Text = a.Name;
Rent.IsEnabled = true;
return(true);
}
}
else if (type == 1) //1 == search by ISBN
{
Guid d;
bool b = Guid.TryParse(text.Text, out d);
if (b)
{
a = item[d];
if (a != null)
{
infotext.Text = a.ToString();
bookName.Text = a.Name;
return(true);
}
}
return(false);
}
return(false);
}
//rent methood, throw mesaage every step that refort waht goes wrong
public bool RentBook(double money, TextBlock info, User user)
{
if (a.getCopies() <= 0)
{
throw new Exception("Not in stock!");
}
if (money == -1)
{
throw new Exception("Please enter money only!");
}
if (money < a.getDiscountPrice())
{
throw new Exception("Please enter enought money!");
}
// if this pass all the conditions he rentable
a.ReduceCopyAmount(); //remove copy from our list
info.Text = a.ToString(); //print the current detail's
user.RentItem(a); //add the item to list of the user
BookLib.ItemCollection.addToRental(user, a); //add to the Dictionary that manage the rentel
return(true);
}
// Show
private void ShowAddCopiesControllers()
{
// disable id-textbox and continue-button
idTbx.IsEnabled = false;
addItemBtn.IsEnabled = false;
// show messages that item exist
if (_foundedItem != null)
{
errorTbl.Text = "The item is already exist";
foundedItemTbl.Text = _foundedItem.ToString();
}
// show add copy part
copyTbl.Visibility = Visibility.Visible;
minusBtn.Visibility = Visibility.Visible;
minusBtn.IsEnabled = false;
_numOfcopies = 1;
numOfCopiesTbx.Visibility = Visibility.Visible;
numOfCopiesTbx.Text = _numOfcopies.ToString();
plusBtn.Visibility = Visibility.Visible;
addCopBtn.Visibility = Visibility.Visible;
undoBtn.Visibility = Visibility.Visible;
}