private void UpdateInventory(int index, int numWanted)
{
// declare our variables
int itemNo;
string prodName;
int qty;
decimal price;
// update the quantity of the inventory item
kItems[index].Qty = kItems[index].Qty - numWanted;
// get the data from the inventory item
itemNo = kItems[index].ItemNo;
prodName = kItems[index].ProdName;
price = kItems[index].Price;
for (int i = 0; i < numWanted; i++)
{
kCart[lastCartItem] = new Krusty(itemNo,
prodName, 1, price);
lstBxCart.Items.Add(kCart[lastCartItem]);
// update item number for next item
lastCartItem++;
}
}
private void btnCalc_Click(object sender, EventArgs e)
{
decimal temp;
temp = Krusty.CalculateSubTotal(kCart);
lblSubtotal.Text = temp.ToString("C");
temp = Krusty.CalculateTax(kCart);
lblTax.Text = temp.ToString("C");
totalAmtDue = Krusty.CalculateTotal(kCart);
lblTotal.Text = totalAmtDue.ToString("C");
}
private void ProcessInputLine(string kInItem, int kIndex)
{
// split the line into our fields
string[] fields = kInItem.Split(',');
// get each field from the split array
// convert as necessary
int itemNo = Convert.ToInt32(fields[0]);
string prodName = fields[1];
int qty = Convert.ToInt32(fields[2]);
decimal price = Convert.ToDecimal(fields[3]);
// create a Krusty inventory object with the data
kItems[kIndex] = new Krusty(itemNo, prodName, qty, price);
// add the Krusty inventory object to the list box on our form
lstBxInventory.Items.Add(kItems[kIndex]);
}
}//deletes an item from our list and array
private Krusty[] RemoveFromArray(Krusty[] theItems, int removeAt)
{
//allocate a temp array
Krusty[] tempArray = new Krusty[theItems.Length - 1];
//set up our index
int i = 0; //use for our theItems array
int j = 0; //use for new temp array
while (i < theItems.Length)
{
if (i != removeAt) //keep this one
{
tempArray[j] = theItems[i];
j++;
} //end of if
i++;
} //end of while
return(tempArray);
}
/// <summary>
/// Display the sub form to allow add of an item
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnAddInv_Click(object sender, EventArgs e)
{
Krusty emptyOne = new Krusty();
formProperties subForm = new formProperties(ref emptyOne);
subForm.ShowDialog();
//we return from the subform
if (emptyOne.ProdName != null)
{
// create a Krusty inventory object with the data
kItems[fileIndex] = emptyOne;
// add the Krusty inventory object to the list box on our form
lstBxInventory.Items.Add(kItems[fileIndex]);
fileIndex++;
lblMessage.Text = "Krusty item added!";
}
else
{
lblMessage.Text = "Krusty add cancelled";
}
}
/// <summary>
/// Update an inventory item
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnUpdate_Click(object sender, EventArgs e)
{
if (lstBxInventory.SelectedIndex == -1)
{
MessageBox.Show("Select an item", "Krusty");
}
else
{
//save the index of the selected item
int thisListItem = lstBxInventory.SelectedIndex;
//create an instance of a Krusty with this item
Krusty thisKrusty = kItems[thisListItem];
//create an instance of the Properties form
//pass in the Krusty by reference
formProperties subForm = new formProperties(ref thisKrusty);
subForm.ShowDialog();
//update the Krusty array and list box with the new values
kItems[thisListItem] = thisKrusty;
lstBxInventory.Items[thisListItem] = thisKrusty;
lblMessage.Text = "Inventory item updated";
}
}
public formProperties(ref Krusty thisOne)
{
InitializeComponent();
globalOne = thisOne;
}