private void btnAdd_Click(object sender, EventArgs e)
{
errProvider.Clear();
double newPrice;
int newUnits;
string newDescription = txtDescription.Text;
int newIdNumber;
if (!double.TryParse(txtPrice.Text, out newPrice) || newPrice < 0)
{
errProvider.SetError(txtPrice, "Price is not valid");
return;
}
if (!int.TryParse(txtUnits.Text, out newUnits) || newUnits < 0)
{
errProvider.SetError(txtUnits, "Units not valid");
return;
}
if (!int.TryParse(txtIdNumber.Text, out newIdNumber) || newIdNumber < 0)
{
errProvider.SetError(txtIdNumber, "Id Number not valid");
return;
}
if (newDescription == "")
{
errProvider.SetError(txtDescription, "Description is blank");
return;
}
Retalitem item = new Retalitem(newIdNumber, newDescription, newUnits, newPrice);
_newItem = item;
this.Close();
}
/* Add a method, DeleteItem, that uses an id number as a parameter. If the id number is in the list,
* check if the units is 0. Only delete items that have 0 units (set last status to “Item deleted”).
* Otherwise, set last status to “Item cannot be deleted”.
*/
public void DeleteItem(int id)
{
Retalitem match = items.Find(x => x.IdNumber == id);
if (match != null && match.Units == 0)
{
items.Remove(match);
_lastStatus = "Item deleted";
}
else
{
_lastStatus = "item cannot be deleted";
}
}
/* Add a method, UpdateItem, that uses a RetailItem parameter. The method updates the RetailItem in
* the list with the matching parameter id number (set last status to “Item updated”. Otherwise, set last
* status to “No matching item with ID Number xxxx” (where xxxx is the id parameter).
*/
public void UpdateItem(Retalitem item)
{
Retalitem match = items.Find(x => x.IdNumber == item.IdNumber);
if (match != null)
{
match.Price = item.Price;
match.Units = item.Units;
_lastStatus = "Item Updated";
}
else
{
_lastStatus = "No matching item with ID Number " + item.IdNumber;
}
}
/*Add a method, AddItem, that uses a RetailItem as a parameter. The method should check if the id
* number of the parameter is already in the list (set last status to “ID number already exists”).
* Otherwise, add the item to the list and set last status to “Item added to inventory”.
*/
public void AddItem(Retalitem item)
{
Retalitem match = items.Find(x => x.IdNumber == item.IdNumber);
if (match != null)
{
// check out Project 2 override contains
_lastStatus = "ID number already exists";
}
else
{
items.Add(item);
_lastStatus = "Item added to inventory";
}
}
private void Form1_Load(object sender, EventArgs e)
{
// In the form load event, add the following RetailItems:
//Create RetailItem objects. Add to CurrentInventory
Retalitem Item = new Retalitem(1, "Jacket", 12, 59.95);
Program.CurrentInventory.AddItem(Item);
Item = new Retalitem(2, "Jeans", 40, 34.95);
Program.CurrentInventory.AddItem(Item);
Item = new Retalitem(3, "Shirt", 20, 24.95);
Program.CurrentInventory.AddItem(Item);
DisplayInventory();
}