private void DisplayPackages() { packages = PackagesDB.GetPackages(); if (packages != null) // if we have product suppliers to display { lstView.Items.Clear(); //start with empty list box foreach (Packages pkg in packages) { lstView.Items.Add(pkg); } } else // null this product does not exist - need to refresh combo box { packageIds = PackagesDB.GetPackageIds(); } }
private void cboTableNames_SelectedIndexChanged(object sender, EventArgs e) { string tableName = cboTableNames.SelectedValue.ToString(); if (tableName == "Products") { pnlName.Visible = true; pnlName2.Visible = false; lblId.Text = "Product Id"; productIds = ProductsDB.GetProductsIds(); if (productIds.Count > 0) // if there are prodcuts { cboId.DataSource = productIds; cboId.SelectedIndex = 0; // triggers SelectedIndexChanged } else // no members { MessageBox.Show("There are no products. " + "Add some products in the database, and restart the application ", "Empty Load"); Application.Exit(); } DisplayProductData(); } else if (tableName == "Suppliers") { lblId.Text = "Supplier Id"; supplierIds = SuppliersDB.GetSuppliersIds(); pnlName.Visible = true; pnlName2.Visible = false; if (supplierIds.Count > 0) // if there are suppliers { cboId.DataSource = supplierIds; cboId.SelectedIndex = 0; // triggers SelectedIndexChanged } else // no members { MessageBox.Show("There are no suppliers. " + "Add some supplier in the database, and restart the application ", "Empty Load"); Application.Exit(); } DisplaySupplierData(); } else if (tableName == "Products_Suppliers") { lblId.Text = "ProductSupplier Id"; lblName.Text = "Product Name"; lblName2.Text = "Supplier Name"; pnlName.Visible = true; pnlName2.Visible = true; productSupplierIds = Products_SuppliersDB.GetProductSupplierIds(); if (productSupplierIds.Count > 0) // if there are suppliers { cboId.DataSource = productSupplierIds; cboId.SelectedIndex = 0; // triggers SelectedIndexChanged } else // no members { MessageBox.Show("There are no product_suppliers. " + "Add some product_supplier in the database, and restart the application ", "Empty Load"); Application.Exit(); } DisplayProductSupplierData(); } else if (tableName == "Packages_Products_Suppliers") { lblId.Text = "Package Id"; packageIds = Packages_Products_SuppliersDB.GetPackageIds(); pnlName.Visible = false; pnlName2.Visible = false; if (packageIds.Count > 0) // if there are packages { cboId.DataSource = packageIds; cboId.SelectedIndex = 0; // triggers SelectedIndexChanged } else // no members { MessageBox.Show("There are no packages with products_suppliers. " + "Add some packages with product_supplier in the database, and restart the application ", "Empty Load"); Application.Exit(); } } else if (tableName == "Packages") { lblId.Text = "Package Id"; pnlName.Visible = true; pnlName2.Visible = false; packageIds = PackagesDB.GetPackageIds(); DisplayPackages(); if (packageIds.Count > 0) // if there are suppliers { cboId.DataSource = packageIds; cboId.SelectedIndex = 0; // triggers SelectedIndexChanged } else // no members { MessageBox.Show("There are no packages. " + "Add some packages in the database, and restart the application ", "Empty Load"); Application.Exit(); } } }