private void _btnDelete_Click(object sender, EventArgs e)
{
if (_lvProducts.SelectedItems.Count > 0)
{
DialogResult confirm = MessageBox.Show("Are you sure you want to delete this product?",
"Delete Confirmation", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
if (confirm == DialogResult.OK)
{
Product product = new Product();
ListViewItem item = _lvProducts.SelectedItems[0];
product = (Product)item.Tag;
bool deleted = db.deleteProduct(product.Id);
if (deleted)
{
products.Remove(product);
}
}
}
else
{
MessageBox.Show("Select a product from the list to delete.", "Product not selected",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
_lvProducts.Items.Clear();
ListProducts();
ControlUtil.DisableButtons(_btnSave, _btnEdit, _btnDelete);
ControlUtil.EnableButtons(_btnNew);
ControlUtil.ClearTextBoxes(_txtName, _txtPrice, _txtDescription);
ControlUtil.DisableTextBoxes(_txtName, _txtPrice, _txtDescription);
_cbOrganic.Checked = false;
_cbOrganic.Enabled = false;
}
private void _lvProducts_SelectedIndexChanged(object sender, EventArgs e)
{
if (_lvProducts.SelectedItems.Count > 0)
{
ListViewItem item = _lvProducts.SelectedItems[0];
product = (Product)item.Tag;
_txtName.Text = product.ProductName;
_txtPrice.Text = Convert.ToString(product.Price);
_txtDescription.Text = product.Description;
if (product.Organic)
{
_cbOrganic.Checked = true;
}
else
{
_cbOrganic.Checked = false;
}
}
ControlUtil.DisableButtons(_btnSave);
ControlUtil.EnableButtons(_btnEdit, _btnDelete, _btnNew);
ControlUtil.DisableTextBoxes(_txtName, _txtPrice, _txtDescription);
_cbOrganic.Enabled = false;
}
private void ProductForm_Load(object sender, EventArgs e)
{
ControlUtil.DisableButtons(_btnSave, _btnEdit, _btnDelete);
ControlUtil.EnableButtons(_btnNew);
ControlUtil.ClearTextBoxes(_txtName, _txtPrice, _txtDescription);
ControlUtil.DisableTextBoxes(_txtName, _txtPrice, _txtDescription);
_cbOrganic.Checked = false;
_cbOrganic.Enabled = false;
}
private void DisableFields()
{
ControlUtil.DisableTextBoxes(this._txtName, this._txtAddress);
this._txtPhone.ReadOnly = true;
ControlUtil.DisableComboBoxes(this._cmbZone, this._cmbType);
}
//enables the order input form group
//'disables' total cost textbox since
//that isn't for the user to input
private void EnableInputForm()
{
_grpOrderInfo.Enabled = true;
ControlUtil.DisableTextBoxes(_txtTotalCost);
}
private void _btnSave_Click(object sender, EventArgs e)
{
//If the product was selected from listview and the edit button was pressed
//Edit product
if (_lvProducts.SelectedItems.Count > 0 && product == proEdit)
{
ListViewItem item = _lvProducts.SelectedItems[0];
product = (Product)item.Tag;
product.ProductName = _txtName.Text;
product.Price = Convert.ToDecimal(_txtPrice.Text);
product.Description = _txtDescription.Text;
product.Organic = checkIfOrganic();
bool edited = db.updateProduct(product.Id, product.ProductName, product.Organic, product.Price, product.Description);
if (!edited)
{
MessageBox.Show("Product could not be updated. Please try again!", "Product update error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
//Clear the listview
_lvProducts.Items.Clear();
//Update the listview with the new data
ListProducts();
_lvProducts.Items[0].Selected = true;
}
else if (product == proNew)
{
if (String.IsNullOrWhiteSpace(_txtName.Text) ||
String.IsNullOrWhiteSpace(_txtPrice.Text) ||
String.IsNullOrWhiteSpace(_txtDescription.Text))
{
MessageBox.Show("Could not add the product! Some information is missing. " +
"Please make sure to fill all the required fields.", "Product no added.",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
Product newProduct = new Product();
newProduct.ProductName = _txtName.Text;
decimal d;
if (decimal.TryParse(_txtPrice.Text, out d))
{
newProduct.Price = d;
}
else
{
MessageBox.Show("The product price is not valid.", "Price not valid", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
newProduct.Description = _txtDescription.Text;
newProduct.Organic = checkIfOrganic();
//check if item is already in the list, if not add it and print in the listview
if (products.Any(item => item.ProductName == newProduct.ProductName))
{
MessageBox.Show("The product you are trying to add already exists.", "Product exists",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else
{
bool added = db.AddProduct(newProduct.ProductName, newProduct.Organic, newProduct.Price, newProduct.Description);
if (added)
{
products.Add(newProduct);
}
else
{
MessageBox.Show("The product was not added. Please try again!", "Product Error",
MessageBoxButtons.OK, MessageBoxIcon.Error);
}
_lvProducts.Items.Clear();
ListProducts();
}
}
}
_lvProducts.Items[0].Selected = true;
ControlUtil.DisableButtons(_btnSave);
ControlUtil.EnableButtons(_btnEdit, _btnDelete, _btnNew);
ControlUtil.DisableTextBoxes(_txtName, _txtPrice, _txtDescription);
_cbOrganic.Enabled = false;
}
