// This method populates the combo box with available Suppliers
private void LoadSupplierCB()
{
int prodId = ProductsDB.getProductId(prodName);
List <Suppliers> temp = new List <Suppliers>(); // Temp variable to store in order to convert string to int
List <Suppliers> supplierList = new List <Suppliers>();
// Grabs all supplier ID that doesn't have the particular supplier ID in Product_Supplier
temp = Products_SuppliersDB.GetNotInSuppliersID(prodId);
try
{
foreach (Suppliers supplier in temp)
{
// Converts the Supplier IDs to Supplier Names
supplier.SupName = SuppliersDB.getSupName(supplier.SupplierId);
supplierList.Add(supplier);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
// Populate the combo box
try
{
cbSupplierName.DataSource = supplierList;
cbSupplierName.DisplayMember = "SupName";
cbSupplierName.ValueMember = "SupplierId";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
private void cBProduct_SelectedIndexChanged(object sender, EventArgs e)
{
btnAddProd.Visible = false;
btnDeleteProduct.Visible = false;
cBSupplier.Items.Clear();
cBSupplier.Visible = true;
lblSupplier.Visible = true;
cBSupplier.SelectedText = "";
cBSupplier.Text = "";
try
{
string prodName = cBProduct.GetItemText(cBProduct.SelectedItem); //Get the product name for the selected product
int productId = ProductsDB.getProductId(prodName); //find the productId of the selected item
//Get a list of supppiers for the selected product
List <Suppliers> suppliersSel = Products_SuppliersDB.GetSupForProd(productId);
//Display the suppliers for the selected product
foreach (Suppliers supplier in suppliersSel)
{
cBSupplier.Items.Add(supplier.SupName);
}
}
catch (SqlException ex)
{
throw ex;
}
}
// Gets the next available Product_Supplier ID
private void btnGetNext_Click(object sender, EventArgs e)
{
int NextID = 0;
NextID = Products_SuppliersDB.getNextProducts_SupplierId();
txtProdSuppId.Text = NextID.ToString();
}
// Deletes the Product_Supplier ID
private void btnDelete_Click_1(object sender, EventArgs e)
{
prodName = cbProdName.Text;
supName = cbSupName.Text;
// Grabs the ID through product and supplier names
int prodID = ProductsDB.getProductId(prodName);
int supID = SuppliersDB.getSupplierId(supName);
// Confirmation message for delete
DialogResult result = MessageBox.Show("Are you sure you want to delete link between "
+ prodName + " and " + supName + "?",
"Confirm Delete", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (result == DialogResult.Yes)
{
try
{
if (!Products_SuppliersDB.DeleteProdSup(prodID, supID)) // Checks the DB
{
MessageBox.Show("Another user has updated or deleted " +
"that customer.", "Database Error");
}
}
catch
{
MessageBox.Show("Cannot delete current Product Supplier when it is added as a product in\n" +
"a package. Please remove the product from the package first");
}
}
this.Close();
}
//This method controls what happens when someone selects a supplier in the supplier listbox. When a supplier is selected
//the product list box is populated with the products associated with the supplier.
private void lbSuppliers_SelectedIndexChanged(object sender, EventArgs e)
{
lbProducts.Items.Clear();//clear all the items in the list box for the products
try
{
string supName = lbSuppliers.GetItemText(lbSuppliers.SelectedItem); //get the supplier name for the selected supplier
int supplierId = SuppliersDB.getSupplierId(supName); //get the supplier id from the supplier name
//use that supplierId to get all the products that are associated with the supplier Id
List <Products> productsSel = Products_SuppliersDB.GetProdForSup(supplierId);
//Display the products for the selected supplier
foreach (Products product in productsSel)
{
lbProducts.Items.Add(product.ProdName);
}
}
catch (SqlException ex)
{
throw ex;
}
// Button controls
btnModifyProd.Visible = false;
btnDeleteProd.Visible = false;
btnDeleteData.Visible = true;
btnAddSupToProd.Visible = false;
btnAddProdToSup.Visible = true;
btnModifySup.Visible = true;
btnDeleteSup.Visible = true;
}
//This method controls what happens when someone selects a product in the products listbox. When a product is selected
//the supplier list box is populated with the suppliers associated with the product.
private void lbProducts_SelectedIndexChanged(object sender, EventArgs e)
{
lbSuppliers.Items.Clear();//clear all the items in the list box for the suppliers
try
{
string prodName = lbProducts.GetItemText(lbProducts.SelectedItem); //Get the product name for the selected product
int productId = ProductsDB.getProductId(prodName); //find the productId of the selected item
//Get a list of supppiers for the selected product
List <Suppliers> suppliersSel = Products_SuppliersDB.GetSupForProd(productId);
//Display the suppliers for the selected product
foreach (Suppliers supplier in suppliersSel)
{
lbSuppliers.Items.Add(supplier.SupName);
}
}
catch (SqlException ex)
{
throw ex;
}
// Button controls
btnModifyProd.Visible = true;
btnDeleteProd.Visible = true;
btnDeleteData.Visible = true;
btnAddSupToProd.Visible = true;
btnAddProdToSup.Visible = false;
btnModifySup.Visible = false;
btnDeleteSup.Visible = false;
}
private void cBProduct_SelectedIndexChanged(object sender, EventArgs e) // when a product index selected has changed
{
btnAddProd.Visible = false; // add product is not visible
btnDeleteProduct.Visible = false; // delete product is not visible
cBSupplier.Items.Clear(); // clear items in list
cBSupplier.Visible = true; // make supplier combo box visible
lblSupplier.Visible = true; // supplier label is visible
cBSupplier.SelectedText = ""; // clear selected text
cBSupplier.Text = ""; // clear supplier text
try
{
string prodName = cBProduct.GetItemText(cBProduct.SelectedItem); //Get the product name for the selected product
int productId = ProductsDB.getProductId(prodName); //find the productId of the selected item
//Get a list of supppiers for the selected product
List <Suppliers> suppliersSel = Products_SuppliersDB.GetSupForProd(productId);
//Display the suppliers for the selected product
foreach (Suppliers supplier in suppliersSel)
{
cBSupplier.Items.Add(supplier.SupName);
}
}
catch (SqlException ex)
{
throw ex;
}
}
// This method populates the combo box with available Products
private void LoadProductCB()
{
int supId = SuppliersDB.getSupplierId(suppName);
List <Products> temp = new List <Products>(); // Temp variable to store in order to convert string to int
List <Products> productList = new List <Products>();
// Grabs all product ID that doesn't have the particular supplier ID in Product_Supplier
temp = Products_SuppliersDB.GetNotInProductsID(supId);
try
{
// Converts the Product IDs to Product Names
foreach (Products products in temp)
{
products.ProdName = ProductsDB.getProdName(products.ProductId);
productList.Add(products);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
// Populate the combo box
try
{
cbProductName.DataSource = productList;
cbProductName.DisplayMember = "ProdName";
cbProductName.ValueMember = "ProductId";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
private void btnDeleteProduct_Click(object sender, EventArgs e)
{
//supName is equal to the selected items at index 0 to text
string supName = (lvPkgDetails.Items[lvPkgDetails.SelectedItems[0].Index].Text);
//suppID is equal to the result of the getProductId method taking supName as an argument
int suppID = ProductsDB.getProductId(supName);
//prodName is equal to the selected items at index 0, sub-item index 1 to text
string prodName = lvPkgDetails.SelectedItems[0].SubItems[1].Text;
//prodID is equal to the result of the getSupplierId method taking prodName as an argument
int prodID = SuppliersDB.getSupplierId(prodName);
//productSupplierID is equal to the result of the get_PpsID method taking suppID and prodID as arguments
int psID = Products_SuppliersDB.Get_PpsID(suppID, prodID);
// pkgID is equal to the result of the GetPackageIDBy_PsID method taking PsID as an argument
int pkgID = PackagesDB.GetPackageIDBy_PsID(psID);
bool exists = false;
bool attempt = false;
if (!exists) // if it does not exist, do this
{
try
{
// attempt = add product to package method, taking product supplier id and package id as arguments
attempt = ProductsDB.deleteProductFromPkg(pkgID, psID);
//MessageBox.Show("Succesfully deleted");
}
catch (SqlException ex)
{
MessageBox.Show("Error modifying package\n" + ex);
}
if (attempt)
{
MessageBox.Show("Succesfully deleted");
lvPkgDetails.Items.Clear();
int i = 0;
//int pkgID = lvPackages.Items.IndexOf(lvPackages.SelectedItems[i]); -- this is an old logic used
List <Package_Product_Suppliers> pps_o = PackagesDB.GetProductSuppliersByPackage(pkgID);
foreach (Package_Product_Suppliers pps in pps_o)
{
lvPkgDetails.Items.Add(pps.ProdName);
lvPkgDetails.Items[i].SubItems.Add(pps.SupName);
i += 1;
}
}
}
else
{
MessageBox.Show("Unable to delete");
}
btnAddPackage.Visible = true;
btnDeleteProduct.Visible = false;
lvPkgDetails.Items.Clear();
}
private void btnConfirm_Click(object sender, EventArgs e)
{
if (cBSupplier.SelectedText != "")
{
string prodNameSelected = cBProduct.GetItemText(cBProduct.SelectedItem); //Get the product name for the selected product
int prodIdSelected = ProductsDB.getProductId(prodNameSelected); //find the productId of the selected item
// get thee supplier name from the combo box selection
string supNameSelected = cBSupplier.GetItemText(cBSupplier.SelectedItem);
// get the supplierID from the suppliername using the method in SuppliersDB
int supplierIdSelected = SuppliersDB.getSupplierId(supNameSelected);
// product supplier ID is equal to a method that retrieves it in a SQL Query
int ppsID = Products_SuppliersDB.Get_PpsID(prodIdSelected, supplierIdSelected);
// pkgID is equal to the selected ITEM at the index clicked to maintain consistency
int pkgID = Convert.ToInt32(lvPackages.Items[lvPackages.SelectedItems[0].Index].Text);
bool exists = false;
bool attempt = false;
if (!exists) // if it does not exist, do this
{
try
{
// attempt = add product to package method, taking product supplier id and package id as arguments
attempt = PackagesDB.AddProdToPackage(ppsID, pkgID);
}
catch (SqlException ex)
{
MessageBox.Show("Error modifying package\n" + ex);
}
if (attempt)
{
MessageBox.Show("Succesfully modified");
int i = 0;
lvPkgDetails.Items.Clear();
List <Package_Product_Suppliers> pps_o = PackagesDB.GetProductSuppliersByPackage(pkgID);
foreach (Package_Product_Suppliers pps in pps_o)
{
lvPkgDetails.Items.Add(pps.ProdName);
lvPkgDetails.Items[i].SubItems.Add(pps.SupName);
i += 1;
}
}
}
else
{
MessageBox.Show("Package is already in the database");
}
}
else
{
MessageBox.Show("Please choose a valid supplier");
}
}
private void GetSup()
{
try
{
int productId = ProductsDB.getProductId(prodName);//find the productId of the selected item
//Get a list of supppiers for the selected product
List <Suppliers> suppliersSel = Products_SuppliersDB.GetSupForProd(productId);
//Display the suppliers for the selected product
foreach (Suppliers supplier in suppliersSel)
{
cbSupName.Items.Add(supplier.SupName);
}
}
catch (SqlException ex)
{
throw ex;
}
}
private void GetProd()
{
try
{
int supplierId = SuppliersDB.getSupplierId(supName);//get the supplier id from the supplier name
//use that supplierId to get all the products that are associated with the supplier Id
List <Products> productsSel = Products_SuppliersDB.GetProdForSup(supplierId);
//Display the products for the selected supplier
foreach (Products product in productsSel)
{
cbProdName.Items.Add(product.ProdName);
}
}
catch (SqlException ex)
{
throw ex;
}
}
// Adds a new row for Product_Supplier table
private void btnAdd_Click(object sender, EventArgs e)
{
if (Validator.IsPresent(txtProdSuppId) && Validator.IsPresent(txtProdName) &&
Validator.NonNegativeInt32(txtProdSuppId))
{
suppProd = new Products_Suppliers();
this.PutInSuppToProd(suppProd); // Grabs the data and puts it in variable
try // Adding through SQL, ProductSupplierDB
{
suppProd = Products_SuppliersDB.AddSupToProd(suppProd);
this.DialogResult = DialogResult.OK;
MessageBox.Show("1 row added");
this.Close();
}
catch
{
MessageBox.Show("Provided Supplier ID already exists, please enter a different one");
txtProdSuppId.Focus();
}
}
}
