// Adds product by name to the list of products and appends it to DB
private void btnAddProducts_Click(object sender, EventArgs e)
{
if (Validator.IsProvided(txtProducts, "Product Name"))
{
string product = txtProducts.Text;
bool valid = true;
foreach (Product p in products)
{
if (p.ProdName == product)
{
MessageBox.Show(product + " already exists");
valid = false;
break;
}
}
if (valid)
{
Product pro = new Product();
pro.ProdName = product;
pro.ProductId = ProductDB.AddProduct(pro);
products = ProductDB.GetProducts();
displayProducts();
listProducts();
txtProducts.Clear();
MessageBox.Show(product + " was added");
}
}
}
private void btnDeleteProductClick_Click(object sender, EventArgs e)
{
if (delProduct != null)
{
DialogResult result = MessageBox.Show("Are you sure you want to delete " + delProduct.ProdName
+ " product ID " + delProduct.ProductID + "? ", "Confirm Delete", MessageBoxButtons.YesNo, MessageBoxIcon.Question,
MessageBoxDefaultButton.Button2);
if (result == DialogResult.Yes)
{
try
{
ProductDB.DeleteProduct(delProduct);
products = ProductDB.GetProducts();
productDataGridView.DataSource = products;
delProduct = null;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
}
else
{
MessageBox.Show("Please select a product to delete", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
// Take all products in list and display them
private void displayProducts()
{
products = ProductDB.GetProducts();
lbProducts.Items.Clear();
// take all the products from list and display it in the list box
foreach (Product product in products)
{
lbProducts.Items.Add(product.ProdName);
}
}
private void btnEditProduct_Click(object sender, EventArgs e)
{
string pronameText = textBoxEditProName.Text;
pronameText = pronameText.Trim();
if (pronameText != "")
{
//Get the product to edit
int selectedIndex = productDataGridView.CurrentCell.RowIndex;
Product oldProd = products[selectedIndex];
//Make a copy
Product newProd = oldProd.GetCopy();
//Update the copy with new data
newProd.ProdName = textBoxEditProName.Text;
if (newProd.ProdName != oldProd.ProdName) //Check if a change was made
{
//Write to DB
try
{
bool result = ProductDB.UpdateProduct(oldProd, newProd);
if (result)
{
//Update the UI
products = ProductDB.GetProducts();
productDataGridView.DataSource = products;
MessageBox.Show("The new product name has been saved", "Product Updated",
MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("The changes were not saved", "Updated Failed",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString(),
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
//Hide the panel if updates were done
panelProductEdit.Visible = false;
btnAddProductClick.Enabled = true;
btnDeleteProductClick.Enabled = true;
}
else //Display error message if Product name textbox was blank.
{
MessageBox.Show("Please provide product name.", "Missing Data",
MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
private void Form1_Load(object sender, EventArgs e)
{
//add panels in product tab
listPanelProduct.Add(panelProductAdd);
listPanelProduct.Add(panelProductEdit);
//add panels of package tab
listPanelPackage.Add(panelAddPkg);
listPanelPackage.Add(panelEditPkg);
//add panels of supplier tab
listPanelSupplier.Add(panelAddSupplier);
listPanelSupplier.Add(panelEditSupplier);
//hide all panels when form loads
panelProductAdd.Visible = false;
panelProductEdit.Visible = false;
panelAddPkg.Visible = false;
panelEditPkg.Visible = false;
panelAddSupplier.Visible = false;
panelEditSupplier.Visible = false;
panelDetailPkg.Visible = false;
//Load products data in gridview from database
try
{
products = ProductDB.GetProducts();
productBindingSource.DataSource = products;
//load supplier data
suppliers = SupplierDB.GetAllSuppliers();
//supplierNameComboBox.DataSource = suppliers;
//comboBoxPEditSupID.DataSource = suppliers;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
//Load supplier data in gridview from database
try
{
suppliers = SupplierDB.GetAllSuppliers();
supplierDataGridView.DataSource = suppliers;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
// on load check if supplier or product is being edited and display respective messages
private void EditProdSup_Load(object sender, EventArgs e)
{
products = ProductDB.GetProducts();
suppliers = SupplierDB.GetSuppliers();
if (SelectedProductName != null)
{
btnUpdate.Text = "Update Product";
lblProdSup.Text = "Selected Product Name:";
txtProdSup.Text = SelectedProductName;
txtProdSup.MaxLength = 50;
}
else
{
btnUpdate.Text = "Update Supplier";
lblProdSup.Text = "Selected Supplier Name:";
txtProdSup.Text = SelectedSupplierName;
txtProdSup.MaxLength = 255;
}
}
private void btnAddProduct_Click(object sender, EventArgs e)
{
string pronameText = textBoxAddProName.Text;
pronameText = pronameText.Trim();
if (pronameText != "")
{
panelProductAdd.Visible = false;
btnEditProductClick.Enabled = true;
btnDeleteProductClick.Enabled = true;
//add product to the database
//Get the data from the panel
Product newProd = new Product();
newProd.ProdName = textBoxAddProName.Text;
// writing new Product and ProductSupplier tables
try
{
//Writing to Products Table
int newProdID = ProductDB.AddProducts(newProd);
products = ProductDB.GetProducts();
productDataGridView.DataSource = products;
//Writing to ProductSupplier table
//Supplier sup = suppliers[supplierNameComboBox.SelectedIndex];
//ProductsSuppliersDB.AddProductsSuppliers(newProdID, sup.SupplierID);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
else
{
MessageBox.Show("Fill up all the required data");
}
textBoxAddProName.Text = "";
}
