private void btnAgregar_Click(object sender, RoutedEventArgs e)
{
//guarda nuevo registro
//Instanciar base de datos
if ((Regex.IsMatch(txbPersonaje.Text, @"^[a-zA-Z\s]+$")) && (Regex.IsMatch(txbPrecio.Text, @"^\d+$")) && (Regex.IsMatch(txbCantidad.Text, @"^\d+$")) && (cbxCategoria.SelectedIndex > -1)&&(cbxTipo.SelectedIndex > -1))
{
BITland db = new BITland();
Producto emp = new Producto();
emp.Personaje = txbPersonaje.Text;
emp.Cantidad = int.Parse(txbCantidad.Text);
emp.Precio = int.Parse(txbPrecio.Text);
emp.CategoriaidCategoria = (int)cbxCategoria.SelectedValue;
emp.TipoProductoidTipo = (int)cbxTipo.SelectedValue;
db.Productos.Add(emp);
db.SaveChanges();
MessageBox.Show("Se agrego correctamente");
}
else
{ MessageBox.Show("Solo caracteres en Personaje y/o numeros en Precio y Cantidad"); }
}
//this method will clear/reset form values
private void CleanUp()
{
//shopping cart = a new empty list
ShoppingCart = new List<Producto>();
//Textboxes and labels are set to defaults
txbCodigoPro.Text = string.Empty;
txbCantidad.Text = string.Empty;
lblTotal.Content = "Total: $0.00";
//DataGrid items are set to null
gbCarrito.ItemsSource = null;
gbCarrito.Items.Refresh();
//Tmp variable is erased using null
tmpProduct = null;
}
private void Button_Click_2(object sender, RoutedEventArgs e)
{
if ((Regex.IsMatch(txbCantidad.Text, @"^\d+$")) && (Regex.IsMatch(txbCodigoPro.Text, @"^\d+$")))
{
//we first check if a product has been selected
if (tmpProduct == null)
{
//if not we call the search button method
Button_Click_1(null, null);
//we check again if the product was found
if (tmpProduct == null)
{
//if tmpProduct is empty (Product not found) we exit the procedure
MessageBox.Show("No hay producto seleccionado", "No hay producto", MessageBoxButton.OK,
MessageBoxImage.Exclamation);
//exit procedure
return;
}
}
//product quantity
int qty;
// we try to parse the number of the textbox if the number is invalid
int.TryParse(txbCantidad.Text, out qty);
//if qty is 0 we assign 0 otherwise we assign the actual parsed value
qty = qty == 0 ? 1 : qty;
//really basic validation that checks inventory
if (qty <= tmpProduct.Cantidad)
{
//we check if product is not already in the cart if it is we remove the old one
ShoppingCart.RemoveAll(s => s.idProducto == tmpProduct.idProducto);
//we add the product to the Cart
ShoppingCart.Add(new Producto()
{
idProducto = tmpProduct.idProducto,
Personaje = tmpProduct.Personaje,
Precio = tmpProduct.Precio,
CategoriaidCategoria = tmpProduct.CategoriaidCategoria,
Cantidad = qty
});
//perform query on Shopping Cart to select certain fields and perform subtotal operation
BindDataGrid();
//<----------------------
//cleanup variables
tmpProduct = null;
//once the products had been added we clear the textbox of code and quantity.
txbCodigoPro.Text = string.Empty;
txbCantidad.Text = string.Empty;
//clean up current product label
lblTotalProducto.Content = "Current product N/A";
}
else
{
MessageBox.Show("Not enough Inventory", "Error en el inventario", MessageBoxButton.OK,
MessageBoxImage.Exclamation);
}
}
else
{
MessageBox.Show("Solo numeros en codigo de producto y cantidad");
}
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
//If a product code is not empty we search the database
if (Regex.IsMatch(txbCodigoPro.Text, @"^\d+$"))
{
BITland db = new BITland();
//parse the product code as int from the TextBox
int id = int.Parse(txbCodigoPro.Text);
//We query the database for the product
Producto p = db.Productos.SingleOrDefault(x => x.idProducto == id);
if (p != null) //if product was found
{
//store in a temp variable (if user clicks on add we will need this for the Array)
tmpProduct = p;
//We display the product information on a label
lblTotalProducto.Content = string.Format("ID: {0}, Personaje: {1}, Precio: {2}, EnStock: {3}", p.idProducto, p.Personaje, p.Precio, p.Cantidad);
}
else
{
//if product was not found we display a user notification window
MessageBox.Show("Producto no encontrado", "Error en el Id Producto", MessageBoxButton.OK, MessageBoxImage.Exclamation);
}
}
else
{
MessageBox.Show("Solo numeros en codigo del producto");
}
}