private bool UpdateProductEntry()
{
string title = titleBox.Text;
if (String.IsNullOrWhiteSpace(title))
{
MessageBox.Show("Title cannot be empty", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
string category = catBox.Text;
if (String.IsNullOrWhiteSpace(category))
{
MessageBox.Show("Category cannot be empty", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
if (!double.TryParse(priceBox.Text, out double price))
{
MessageBox.Show("Price must be a number", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
product.Title = titleBox.Text;
product.Price = price;
product.Category = category;
ProductDb.Update(product);
return(true);
}
private void populateProductComboBox()
{
List <Product> allProducts = ProductDb.GetAllProducts();
allProductsCbo.DataSource = allProducts;
allProductsCbo.DisplayMember = nameof(Product.Title);
}
private void deleteProductBtn_Click(object sender, EventArgs e)
{
Product currProduct = allProductsCbo.SelectedItem as Product;
DialogResult result = MessageBox.Show($"Are you sure you want to delete {currProduct.Title} for ${currProduct.Price} from the database?",
"Warning",
MessageBoxButtons.YesNo,
MessageBoxIcon.Warning);
if (result == DialogResult.Yes)
{
ProductDb.Delete(currProduct);
populateProductComboBox();
}
}
private void addProdBtn_Click(object sender, EventArgs e)
{
// Checks if title and category are null or whitespace
string title = titleBox.Text;
if (String.IsNullOrWhiteSpace(title))
{
MessageBox.Show("Title cannot be empty", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
string category = categoryBox.Text;
if (String.IsNullOrWhiteSpace(category))
{
MessageBox.Show("Category cannot be empty", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// Attempts to parse double from priceBox, if it fails it shows a mbox and returns, if it succeeds the
// variable price will contain the price
if (!double.TryParse(priceBox.Text, out double price))
{
MessageBox.Show("Price must be a number", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// Instantiates a product with the data collected from the form
Product product = new Product
{
Title = title,
Price = price,
Category = category
};
// Adds product object to database
ProductDb.Add(product);
// Displays success message and clears textboxs
MessageBox.Show("Product was added", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
titleBox.Text = "";
priceBox.Text = "";
categoryBox.Text = "";
}
