private void btnCreateStoreItems_Click(object sender, EventArgs e)
{
StoreItem item = new StoreItem();
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
BinaryFormatter bfmStoreItem = new BinaryFormatter();
// This is the file that holds the list of items
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
items.Add(new StoreItem("7MP-00011", "Mouse", "Wireless", "Arc Touch Bluetooth Mouse ", 69.95));
items.Add(new StoreItem("485948", "Mouse", "Wired", "Amazon Basic", 20));
items.Add(new StoreItem("920820", "Mouse", "Wireless", "Microsoft ergonomics", 80));
items.Add(new StoreItem("406033", "Mouse", "Wired", " Logitech", 45));
items.Add(new StoreItem("358460", "Keyboard", "Wireless", "Logitech All-in-one", 50));
items.Add(new StoreItem("724799", "Monitor", "1080p", "LG", 200));
items.Add(new StoreItem("582693", "Thumbdrive", "USB 3.0", "Moserbaer", 15));
items.Add(new StoreItem("350250", "Keyboard", "Wired", "Hp", 30));
items.Add(new StoreItem("332085", "Thumbdrive", "USB 2.0", "SanDisk", 10));
items.Add(new StoreItem("836360", "Thumbdrive", "USB 3.0", "SONY", 9));
// Save the StoreItems collection
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Create,
FileAccess.Write,
FileShare.Write))
{
bfmStoreItem.Serialize(stmStoreItem, items);
}
}
private void btnFirstItem_Click(object sender, EventArgs e)
{
BinaryFormatter bfmStoreItem = new BinaryFormatter();
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
// This is the file that holds the list of items
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
if (File.Exists(strFileName))
{
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
StoreItem item = items.First(sc => sc.SubCategory == "Electric Guitars");
MessageBox.Show("Item #:\t\t" + item.ItemNumber + "\n" +
"Category:\t" + item.Category + "\n" +
"Sub-Category:\t" + item.SubCategory + "\n" +
"Item Name:\t" + item.ItemName + "\n" +
"Unit Price:\t" + item.UnitPrice.ToString("C"),
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
}
private void btnDeleteAllStoreItems_Click(object sender, EventArgs e)
{
BinaryFormatter bfmStoreItem = new BinaryFormatter();
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
if (MessageBox.Show("Are you sure you want to delete all items?",
"Computer Accessories Store",
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.Yes)
{
items.Clear();
MessageBox.Show("All items have been deleted from the inventory.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
lvwAvailableItems.Items.Clear();
lbxSubCategories.Items.Clear();
lbxCategories.Items.Clear();
if (File.Exists(strFileName))
{
File.Delete(strFileName);
}
}
}
private void InitializeStoreItems()
{
lbxCategories.Items.Clear();
lbxSubCategories.Items.Clear();
lvwAvailableItems.Items.Clear();
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
BinaryFormatter bfmStoreItem = new BinaryFormatter();
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
if (File.Exists(strFileName))
{
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
allStoreItems = items;
// Display the categories in the combo box
foreach (StoreItem item in items)
{
if (!lbxCategories.Items.Contains(item.Category))
{
lbxCategories.Items.Add(item.Category);
}
}
pbxSelectedItem.Image = Image.FromFile(@"C:\Microsoft Visual C# Application Design\Item.jpg");
}
}
}
// Done
private void btnFind_Click(object sender, EventArgs e)
{
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
BinaryFormatter bfmStoreItem = new BinaryFormatter();
// This is the file that holds the list of items
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
if (string.IsNullOrEmpty(txtItemNumber.Text))
{
MessageBox.Show("You must enter an item number.",
"Computer Accesories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (File.Exists(strFileName))
{
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
foreach (StoreItem item in items)
{
if (item.ItemNumber == txtItemNumber.Text)
{
cbxCategories.Text = item.Category;
cbxSubCategories.Text = item.SubCategory;
txtItemName.Text = item.ItemName;
txtUnitPrice.Text = item.UnitPrice.ToString("F");
}
}
}
}
strFileName = @"C:\Microsoft Visual C# Application Design\" + txtItemNumber.Text + ".jpg";
if (File.Exists(strFileName))
{
pbxSelectedItem.Image = Image.FromFile(strFileName);
}
else
{
pbxSelectedItem.Image = Image.FromFile(@"C:\Microsoft Visual C# Application Design\Item.jpg");
}
}
// Done
private void cbxCategories_SelectedIndexChanged(object sender, EventArgs e)
{
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
BinaryFormatter bfmStoreItem = new BinaryFormatter();
// This is the file that holds the list of items
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accesories Store\StoreItems.slm";
// If the file for the store inventory was created already, ...
if (File.Exists(strFileName))
{
// ... open it
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
// Display the categories in the combo box
for (int i = 0; i < items.Count; i++)
{
// Get store item based on its index
StoreItem item = (StoreItem)items[i];
// Get the item category
if (item.Category == cbxCategories.Text)
{
// Make sure the category is not yet in the Categories combo box
if (!cbxSubCategories.Items.Contains(item.SubCategory))
{
cbxSubCategories.Items.Add(item.SubCategory);
}
}
}
}
}
}
// Done
private void NewStoreItem_Load(object sender, EventArgs e)
{
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
BinaryFormatter bfmStoreItem = new BinaryFormatter();
// This is the file that holds the list of items
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
if (File.Exists(strFileName))
{
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
// Display the categories in the combo box
for (int i = 0; i < items.Count; i++)
{
StoreItem item = (StoreItem)items[i];
if (!cbxCategories.Items.Contains(item.Category))
{
cbxCategories.Items.Add(item.Category);
}
}
}
}
strFileName = @"C:\Microsoft Visual C# Application Design\Item.jpg";
if (File.Exists(strFileName))
{
pbxSelectedItem.Image = Image.FromFile(strFileName);
}
}
// Done
private void lbxSubCategories_SelectedIndexChanged(object sender, EventArgs e)
{
lvwAvailableItems.Items.Clear();
BinaryFormatter bfmStoreItem = new BinaryFormatter();
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
// This is the file that holds the list of items
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
if (File.Exists(strFileName))
{
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
// Display the sub-categories in the combo box
foreach (StoreItem item in items)
{
// Get only the sub-categories of the selected category
if (item.SubCategory == lbxSubCategories.SelectedItem.ToString())
{
ListViewItem lviStoreItem = new ListViewItem(item.ItemNumber);
lviStoreItem.SubItems.Add(item.ItemName);
lviStoreItem.SubItems.Add(item.UnitPrice.ToString("F"));
lvwAvailableItems.Items.Add(lviStoreItem);
}
}
}
}
}
// Done
private void btnMaintain_Click(object sender, EventArgs e)
{
bool itemFound = false;
BinaryFormatter bfmStoreItem = new BinaryFormatter();
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
// This is the file that holds the list of items
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
// Make sure the user entered a valid item number. Otherwise, don't do nothing
if (string.IsNullOrEmpty(txtItemNumber.Text))
{
MessageBox.Show("You must enter an item number.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
// Make sure the file that holds the store inventory was created already
if (File.Exists(strFileName))
{
// If the inventory file exists, open it
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
// Because we are using one dialog box for update and delete operations,
// first find out what operation is being conducted.
// If the user is trying to update a store item...
if (btnMaintain.Text == "Update Store Item")
{
// ... as a courtesy (just in case), ask the user to confirm the operation
if (MessageBox.Show("Are you sure you want to update this item?",
"Computer Accessories Store",
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.Yes)
{
// Now that we know that the user wants to update the item, locate it
foreach (StoreItem item in items)
{
// If you find an item that has the number in the Item # text box, ...
if (item.ItemNumber == txtItemNumber.Text)
{
// ... change the values of that item based on those on the dialog box
item.Category = cbxCategories.Text;
item.SubCategory = cbxSubCategories.Text;
item.ItemName = txtItemName.Text;
item.UnitPrice = double.Parse(txtUnitPrice.Text);
// Since the item was found, make a note
itemFound = true;
// Now that the item has been found, stop looking for it
break;
}
}
// As a courtesy, let the user know that the item was updated
MessageBox.Show("The item has been updated in the inventory.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Question);
}
}
else // if (btnMaintain.Text == "Delete Store Item")
{
// Make sure the user really wants to delete the item
if (MessageBox.Show("Are you sure you want to delete this item?",
"Computer Accessories Store",
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.Yes)
{
// Since the user really wants to delete the item, look for it
foreach (StoreItem item in items)
{
// If you find the item, ...
if (item.ItemNumber == txtItemNumber.Text)
{
// ... remove it from the inventory
items.Remove(item);
// Let the user know that the item was deleted
MessageBox.Show("The item has been removed from the inventory.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Question);
// Since the item was found and deleted, make a note
itemFound = true;
// Stop looking for the item
break;
}
}
}
}
}
// Since there have been changes in the inventory (the StoreItems collection), update the file
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Create,
FileAccess.Write,
FileShare.Write))
{
bfmStoreItem.Serialize(stmStoreItem, items);
}
}
// If the item was updated or deleted, close the dialog box
if (itemFound == true)
{
Close();
}
}
private void btnNewStoreItem_Click(object sender, EventArgs e)
{
lbxSubCategories.Items.Clear();
lvwAvailableItems.Items.Clear();
NewStoreItem nsi = new NewStoreItem();
StoreItem item = new StoreItem();
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
BinaryFormatter bfmStoreItem = new BinaryFormatter();
// This is the file that holds the list of items
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
if (nsi.ShowDialog() == DialogResult.OK)
{
// Make sure the user had selected a category
if (string.IsNullOrEmpty(nsi.cbxCategories.Text))
{
MessageBox.Show("You must specify the item's category.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
// Make sure the user had entered a name/description
if (string.IsNullOrEmpty(nsi.txtItemName.Text))
{
MessageBox.Show("You must enter the name (or a " +
"short description) for the item.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
// Make sure the user had typed a price for the item
if (string.IsNullOrEmpty(nsi.txtUnitPrice.Text))
{
MessageBox.Show("You must enter the price of the item.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
// Before saving the new item, find out if there was
// already a file that holds the list of items
// If that file exists, open it and store its items
// in our StoreItems list
if (File.Exists(strFileName))
{
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
}
}
// Create the accessory item
item.ItemNumber = nsi.txtItemNumber.Text;
item.Category = nsi.cbxCategories.Text;
item.SubCategory = nsi.cbxSubCategories.Text;
item.ItemName = nsi.txtItemName.Text;
item.UnitPrice = double.Parse(nsi.txtUnitPrice.Text);
// Call the Add method of our collection class to add the item
items.Add(item);
// Save the StoreItems collection
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Create,
FileAccess.Write,
FileShare.Write))
{
bfmStoreItem.Serialize(stmStoreItem, items);
}
}
InitializeStoreItems();
}
private void btnReplaceItem_Click(object sender, EventArgs e)
{
StoreItem selected = null;
StoreItem item = new StoreItem();
NewStoreItem nsi = new NewStoreItem();
BinaryFormatter bfmStoreItem = new BinaryFormatter();
StoreItems <StoreItem> items = new StoreItems <StoreItem>();
string strFileName = @"C:\Microsoft Visual C# Application Design\Computer Accessories Store\StoreItems.slm";
if (lvwAvailableItems.SelectedItems.Count == 0)
{
MessageBox.Show("No item is selected.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
else
{
if (File.Exists(strFileName))
{
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read))
{
// Retrieve the list of items from file
items = (StoreItems <StoreItem>)bfmStoreItem.Deserialize(stmStoreItem);
foreach (StoreItem itm in items)
{
if (itm.ItemNumber == lvwAvailableItems.SelectedItems[0].Text)
{
selected = itm;
break;
}
}
}
}
if (nsi.ShowDialog() == DialogResult.OK)
{
// Make sure the user had selected a category
if (string.IsNullOrEmpty(nsi.cbxCategories.Text))
{
MessageBox.Show("You must specify the item's category.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
// Make sure the user had entered a name/description
if (string.IsNullOrEmpty(nsi.txtItemName.Text))
{
MessageBox.Show("You must enter the name (or a " +
"short description) for the item.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
// Make sure the user had typed a price for the item
if (string.IsNullOrEmpty(nsi.txtUnitPrice.Text))
{
MessageBox.Show("You must enter the price of the item.",
"Computer Accessories Store",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
// Create the item
item.ItemNumber = nsi.txtItemNumber.Text;
item.Category = nsi.cbxCategories.Text;
item.SubCategory = nsi.cbxSubCategories.Text;
item.ItemName = nsi.txtItemName.Text;
item.UnitPrice = double.Parse(nsi.txtUnitPrice.Text);
// Call the Add method of our collection class to replace the item
items.Replace(selected, item);
// Save the StoreItems collection
using (FileStream stmStoreItem = new FileStream(strFileName,
FileMode.Create,
FileAccess.Write,
FileShare.Write))
{
bfmStoreItem.Serialize(stmStoreItem, items);
}
}
}
InitializeStoreItems();
}
