/// <summary>
/// Get all the datat from the database
/// </summary>
private void getAll()
{
try
{
packages = PackagesDB.GetAllPackages();
packages2 = PackagesDB.GetAllPackages(); //Two controls cannot share array data binding
products = ProductDB.GetAllProducts();
products2 = ProductDB.GetAllProducts(); //Two controls cannot share array data binding
suppliers = SuppliersDB.GetAllSuppliers();
products_suppliers = Products_SupplierDB.GetAllProduct_Suppliers();
}
catch (Exception ex) //Any Errors form the database read?
{
MessageBox.Show(ex.Message, ex.GetType().ToString());
}
}
private void LoadComboAndGrid()
{
SqlConnection connection = TravelExpertConnection.GetConnection();
// we can get the Supname..
string query = "SELECT SupplierId, SupName from Suppliers order by SupName";
SqlDataAdapter supp = new SqlDataAdapter(query, connection);
SqlCommand cmd = new SqlCommand(query, connection);
DataTable tab = new DataTable();
supp.Fill(tab);
cboSupName.DataSource = tab;
cboSupName.DisplayMember = "SupName";
cboSupName.ValueMember = "SupplierId";
this.cboSupName.SelectedIndex = -1;
//cmd.ExecuteNonQuery();
suppliersDataGridView.DataSource = SuppliersDB.GetAllSuppliers();
}
private void btnAddUpdate_Click(object sender, EventArgs e)
{
{
using (SqlConnection connection = TravelExpertConnection.GetConnection())
{
if (Validator.IsPresent(txtSupName))
{
connection.Open();
SqlCommand cmd = connection.CreateCommand();
cmd.CommandType = CommandType.Text;
cmd.CommandText = "update Suppliers set SupName='" + txtSupName.Text + "'" +
"where SupplierId='" + cboSupName.SelectedValue + "'";
cmd.ExecuteNonQuery();
connection.Close();
}
}
suppliersDataGridView.DataSource = SuppliersDB.GetAllSuppliers();
LoadComboAndGrid();
txtSupName.Text = "";
}
}
/// <summary>
/// Load data for Product Suppliers tab
/// </summary>
/// <param name="productIndex">Current index of Product Supplier list. Optional parameter.</param>
/// <returns>Rows affected by query, 1 for success and 0 for failure</returns>
// @author Chi
private void loadProductSupplierData(int productIndex = 0)
{
// Clear list box and data grid view
lstboxSuppliers.Items.Clear();
dataGridViewProdSuppliers.Columns.Clear();
// Set current product's view to index of 'products' list (global variable).
Products curProduct = products[productIndex];
curProductSuppliers = ProductSupplierDB.GetProductSuppliersByProductID(curProduct.ProductID);
// Display current product's ID and Name.
txtPSProdID.Text = curProduct.ProductID.ToString();
txtPSProdName.Text = curProduct.ProductName;
// Set customized properties for Data Grid View.
dataGridViewProdSuppliers.AutoGenerateColumns = false;
dataGridViewProdSuppliers.DataSource = curProductSuppliers;
// Created and bind custom column to data source's data property SupplierId.
DataGridViewTextBoxColumn idColumn = new DataGridViewTextBoxColumn();
idColumn.Name = "Supplier's ID";
idColumn.DataPropertyName = "SupplierId";
idColumn.Width = 100;
idColumn.ReadOnly = true;
// Created and bind custom column to data source's data property SupName.
DataGridViewTextBoxColumn nameColumn = new DataGridViewTextBoxColumn();
nameColumn.Name = "Supplier's Name";
nameColumn.DataPropertyName = "SupName";
nameColumn.Width = 239;
nameColumn.ReadOnly = true;
// Add data bound columns to Data Grid View.
dataGridViewProdSuppliers.Columns.Add(idColumn);
dataGridViewProdSuppliers.Columns.Add(nameColumn);
// List of all suppliers
List <Supplier> allSuppliers = SuppliersDB.GetAllSuppliers();
// Get a list of suppliers that are currently not added to current product's suppliers list
filteredSuppliers = new List <Supplier>(allSuppliers.Where(
Sup => curProductSuppliers.All(
sup2 => sup2.SupplierId != Sup.SupplierId
)));
// Add/Update filtered list to list box to prevent customer from adding
// same suppliers to product's supplier list.
foreach (Supplier sup in filteredSuppliers)
{
// check if supplier name is null
if (sup.SupName == null)
{
lstboxSuppliers.Items.Add("");
}
else
{
lstboxSuppliers.Items.Add(sup.SupName);
}
}
}
