public static ProductsSuppliers GetSelected(int pId)
{
ProductsSuppliers selected = new ProductsSuppliers();
SqlConnection connection = TRAVELEXPERTSDB.GetConnection();
string selectStatement = "select p.ProductId, ProdName, ProductSupplierId, ps.SupplierId, s.SupName " +
"from Products p, Products_Suppliers ps, suppliers s " +
"where p.ProductId = ps.ProductId and ps.SupplierId = s.SupplierId and ProductSupplierId = @ProductSupplierId";
SqlCommand selectCommand =
new SqlCommand(selectStatement, connection);
selectCommand.Parameters.AddWithValue("@ProductSupplierId", pId);
try
{
connection.Open();
SqlDataReader reader = selectCommand.ExecuteReader();
if (reader.Read())
{
selected.ProductSupplierId = Convert.ToInt32(reader["ProductSupplierId"]);
selected.SupplierId = Convert.ToInt32(reader["SupplierId"]);
selected.ProductId = Convert.ToInt32(reader["ProductId"]);
selected.SupName = reader["SupName"].ToString();
selected.ProdName = reader["ProdName"].ToString();
}
reader.Close();
}
catch (SqlException ex)
{
throw ex;
}
finally
{
connection.Close();
}
return(selected);
}
public static List <ProductsSuppliers> GetSupplierName(int selectedprodid)
{
List <ProductsSuppliers> productssupplierid = new List <ProductsSuppliers>();
SqlConnection connection = TRAVELEXPERTSDB.GetConnection();
string selectStatement = "select SupName, ps.SupplierId " +
"from Products_Suppliers ps, Suppliers s " +
"where ps.SupplierId = s.SupplierId and ProductId = @ProductId " +
"order by SupName";
SqlCommand selectCommand =
new SqlCommand(selectStatement, connection);
selectCommand.Parameters.AddWithValue("@ProductId", selectedprodid);
try
{
connection.Open();
SqlDataReader reader = selectCommand.ExecuteReader();
while (reader.Read())
{
ProductsSuppliers p = new ProductsSuppliers();
p.SupName = reader["SupName"].ToString();
p.SupplierId = Convert.ToInt32(reader["SupplierId"]);
productssupplierid.Add(p);
}
reader.Close();
}
catch (SqlException ex)
{
throw ex;
}
finally
{
connection.Close();
}
return(productssupplierid);
}
public static List <ProductsSuppliers> GetProductSupplierId2Inputs(int selectedprodid, int?selectedsupplier)
{
List <ProductsSuppliers> productssupplierid = new List <ProductsSuppliers>();
SqlConnection connection = TRAVELEXPERTSDB.GetConnection();
string selectStatement = "select ProductSupplierId from Products_Suppliers " +
"where ProductId= @ProductId and SupplierId=@SupplierId";
SqlCommand selectCommand =
new SqlCommand(selectStatement, connection);
selectCommand.Parameters.AddWithValue("@ProductId", selectedprodid);
selectCommand.Parameters.AddWithValue("@SupplierId", selectedsupplier);
try
{
connection.Open();
SqlDataReader reader = selectCommand.ExecuteReader();
while (reader.Read())
{
ProductsSuppliers p = new ProductsSuppliers();
p.ProductSupplierId = Convert.ToInt32(reader["ProductSupplierId"]);
productssupplierid.Add(p);
}
reader.Close();
}
catch (SqlException ex)
{
throw ex;
}
finally
{
connection.Close();
}
return(productssupplierid);
}
public static bool UpdateProductSupplier(ProductsSuppliers oldProd, ProductsSuppliers newProd)
{
bool successful = false;
SqlConnection connection = TRAVELEXPERTSDB.GetConnection();
string updateString = "update Products_Suppliers set ProductId = @newProd, SupplierId = @newSup " +
"where ProductSupplierId = @oldProdSupId and ProductId = @oldProdId and SupplierId = @oldSupId";
SqlCommand updateCommand = new SqlCommand(updateString, connection);
updateCommand.Parameters.AddWithValue("@newProd", newProd.ProductId);
updateCommand.Parameters.AddWithValue("@newSup", newProd.SupplierId);
updateCommand.Parameters.AddWithValue("@oldProdSupId", oldProd.ProductSupplierId);
updateCommand.Parameters.AddWithValue("@oldProdId", oldProd.ProductId);
updateCommand.Parameters.AddWithValue("@oldSupId", oldProd.SupplierId);
try
{
connection.Open();
int count = updateCommand.ExecuteNonQuery();
if (count == 1)
{
successful = true;
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
//connection.Close();
}
return(successful);
}
public static List <ProductsSuppliers> GetProductsSupplierId()
{
List <ProductsSuppliers> productssupplierid = new List <ProductsSuppliers>();
SqlConnection connection = TRAVELEXPERTSDB.GetConnection();
string selectStatement = "select ProductSupplierId, ProductId, SupplierId "
+ "from Products_Suppliers "
+ "ORDER BY ProductSupplierId";
SqlCommand selectCommand =
new SqlCommand(selectStatement, connection);
try
{
connection.Open();
SqlDataReader reader = selectCommand.ExecuteReader();
while (reader.Read())
{
ProductsSuppliers p = new ProductsSuppliers();
p.ProductSupplierId = Convert.ToInt32(reader["ProductSupplierId"]);
p.SupplierId = Convert.ToInt32(reader["SupplierId"]);
p.ProductId = Convert.ToInt32(reader["ProductId"]);
productssupplierid.Add(p);
}
reader.Close();
}
catch (SqlException ex)
{
throw ex;
}
finally
{
connection.Close();
}
return(productssupplierid);
}
// STEP 2
private void DisplayPS(ProductsSuppliers displayPs)
{
if (displayPs.ProductSupplierId != 0)
{
lstOutput.Items.Clear();
lstOutput.Items.Add(displayPs.ProductSupplierId);
lstOutput.Items.Add(displayPs.ProdName + "," + "\t" + "\t" + displayPs.ProductId);
lstOutput.Items.Add(displayPs.SupName + "," + "\t" + displayPs.SupplierId);
}
}
// STEP 3
private void cboProductsSupplierrId_SelectedIndexChanged(object sender, EventArgs e)
{
int pid = 0;
try
{
pid = Convert.ToInt32(cboProductsSupplierrId.SelectedValue);
}
catch { }
SelectedPS = ProductSupplierIdDB.GetSelected(pid);
this.DisplayPS(SelectedPS);
}
//*******************************************************************
//* *
//* JUSTIN ALEX MIKE AYI *
//* *
//*******************************************************************
// STEP 1
private void btnAdd_Click(object sender, EventArgs e)
{
frmAddModifyProductsSuppliers addProductSupplierForm = new frmAddModifyProductsSuppliers();
addProductSupplierForm.addProductsSuppler = true;
DialogResult result = addProductSupplierForm.ShowDialog();
if (result == DialogResult.OK)
{
productsupplier = addProductSupplierForm.productsupplier;
this.GetProductsSuppliers();
cboProductsSupplierrId.SelectedValue = productsupplier.ProductSupplierId;
MessageBox.Show("New Products Suppliers were added");
}
}
public static List <ProductsSuppliers> GetUniqueProSupId(string logic)
{
List <ProductsSuppliers> productssupplierid = new List <ProductsSuppliers>();
SqlConnection connection = TRAVELEXPERTSDB.GetConnection();
string selectStatement;
if (logic == "p")
{
selectStatement = "select ProductId, ProdName from Products ";
}
else
{
selectStatement = "select SupplierId, SupName from Suppliers ";
}
SqlCommand selectCommand =
new SqlCommand(selectStatement, connection);
try
{
connection.Open();
SqlDataReader reader = selectCommand.ExecuteReader();
while (reader.Read())
{
ProductsSuppliers p = new ProductsSuppliers();
if (logic == "p")
{
p.ProductId = Convert.ToInt32(reader["ProductId"]);
p.ProdName = reader["ProdName"].ToString();
}
else
{
p.SupplierId = Convert.ToInt32(reader["SupplierId"]);
p.SupName = reader["SupName"].ToString();
}
productssupplierid.Add(p);
}
reader.Close();
}
catch (SqlException ex)
{
throw ex;
}
finally
{
connection.Close();
}
return(productssupplierid);
}
private void btnAccept_Click(object sender, EventArgs e)
{
if (Validator.IsPresent(cboProdId) &&
Validator.IsPresent(cboSupId))
{
if (addProductsSuppler)
{
productsupplier = new ProductsSuppliers();
this.PutProductSupplierData(productsupplier);
try
{
productsupplier.ProductSupplierId = ProductSupplierIdDB.AddProductSupplier(productsupplier);
this.DialogResult = DialogResult.OK;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
else
{
ProductsSuppliers newProductSupplier = new ProductsSuppliers();
newProductSupplier.ProductSupplierId = productsupplier.ProductSupplierId;
this.PutProductSupplierData(newProductSupplier);
try
{
if (!ProductSupplierIdDB.UpdateProductSupplier(productsupplier, newProductSupplier))
{
MessageBox.Show("Another user has updated or " +
"deleted that Product Supplier.", "Database Error");
this.DialogResult = DialogResult.Retry;
}
else
{
productsupplier = newProductSupplier;
this.DialogResult = DialogResult.OK;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
}
}
// STEP 2
private void btnModify_Click(object sender, EventArgs e)
{
frmAddModifyProductsSuppliers modifyProductSupplierForm = new frmAddModifyProductsSuppliers();
productsupplier = SelectedPS;
modifyProductSupplierForm.addProductsSuppler = false;
modifyProductSupplierForm.productsupplier = productsupplier;
DialogResult result = modifyProductSupplierForm.ShowDialog();
if (result == DialogResult.OK)
{
this.GetProductsSuppliers();
cboProductsSupplierrId.SelectedValue = productsupplier.ProductSupplierId;
}
else if (result == DialogResult.Retry)
{
this.GetProductsSuppliers();
cboProductsSupplierrId.SelectedValue = productsupplier.ProductSupplierId;
}
MessageBox.Show("Products Suppliers was updated");
}
private void btnDelete_Click(object sender, EventArgs e)
{
ProductsSuppliers pps = new ProductsSuppliers();
package psup = new package();
psup.PackageId = ((package)cboPkgPPS.SelectedItem).PackageId;
pps.ProductSupplierId = ((ProductsSuppliers)cboPSPPS.SelectedItem).ProductSupplierId;
bool logic = Packages_Products_SuppliersDB.Delete(psup, pps);
dataGridPackProdSup.DataSource = Packages_Products_SuppliersDB.GetPackages_Products_Supplierss();
if (logic == true)
{
MessageBox.Show("You have Deleted Product from the package Package!");
}
else
{
MessageBox.Show("The selected product does not exists in the selected package");
dataGridPackProdSup.Rows[3].Selected = true;
}
}
public static int AddProductSupplier(ProductsSuppliers productsupplier)
{
int prodID = 0;
// prepare connection
SqlConnection connection = TRAVELEXPERTSDB.GetConnection();
// prepare the statement
string insertString = "insert into Products_Suppliers(ProductId, SupplierId) Values(@ProductId, @SupplierId)";
SqlCommand insertCommand = new SqlCommand(insertString, connection);
insertCommand.Parameters.AddWithValue("@ProductId", productsupplier.ProductId);
insertCommand.Parameters.AddWithValue("@SupplierId", productsupplier.SupplierId);
try
{
// open connection
connection.Open();
// execute the statement
int i = insertCommand.ExecuteNonQuery();
if (i == 1) // one record inserted
{
// retrieve customer id from the added record
string selectString = "select ident_current('Products_Suppliers') from Products_Suppliers";
SqlCommand selectCommand = new SqlCommand(selectString, connection);
prodID = Convert.ToInt32(selectCommand.ExecuteScalar()); // (int) does not work!!!
}
}
catch (Exception ex)
{
throw ex; // pass the buck
}
finally
{
connection.Close();
}
return(prodID);
}
//method to delete Alex
public static bool Delete(package psup, ProductsSuppliers pps)
{
bool successful = false;
SqlConnection connection = TRAVELEXPERTSDB.GetConnection();
string deleteString = "delete from Packages_Products_Suppliers where PackageId = @PackageId and ProductSupplierId=@ProductSupplierId";
SqlCommand deleteCommand = new SqlCommand(deleteString, connection);
deleteCommand.Parameters.AddWithValue("@PackageId", psup.PackageId);
deleteCommand.Parameters.AddWithValue("@ProductSupplierId", pps.ProductSupplierId);
try
{
connection.Open();
int count = deleteCommand.ExecuteNonQuery();
if (count == 1)
{
successful = true;
}
else
{
return(false);
}
}
catch (Exception ex)
{
//throw ex;
MessageBox.Show("Delete supplier from other tables first");
}
finally
{
connection.Close();
}
return(successful);
}
private void PutProductSupplierData(ProductsSuppliers productsupplier)
{
productsupplier.ProductId = (int)cboProdId.SelectedValue;
productsupplier.SupplierId = (int)cboSupId.SelectedValue;
}