public void saveProduct(Product Pro)
{
cmd.CommandText = "INSERT INTO product(name, quantity, price)" +
" values(@name, @quantity, @price)";
cmd.Parameters.AddWithValue("@name", Pro.getName());
cmd.Parameters.AddWithValue("@quantity", Pro.getQuantity());
cmd.Parameters.AddWithValue("@price", Pro.getPrice());
cmd.ExecuteNonQuery();
conn.Close();
}
public void updateProduct(Product Pro)
{
cmd.CommandText = " UPDATE product SET name = @name, quantity = @quantity, " +
" price = @price " +
" where id = @id ";
cmd.Parameters.AddWithValue("@name", Pro.getName());
cmd.Parameters.AddWithValue("@quantity", Pro.getQuantity());
cmd.Parameters.AddWithValue("@price", Pro.getPrice());
cmd.Parameters.AddWithValue("@id", Pro.getId());
cmd.ExecuteNonQuery();
conn.Close();
}
private void button1_Click(object sender, EventArgs e)
{
try
{
if (MessageBox.Show("Are you sure to add a product?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
name = textBoxName.Text;
quantity = double.Parse(textBoxQuantity.Text);
price = double.Parse(textBoxPrice.Text);
pro = new Product(name, quantity, price);
if (pro.repOK())
{
proMan = new ProductManager();
proMan.saveProduct(pro);
//write text file
//MessageBox.Show(cus.toString());
DateTime now = DateTime.Now;
System.IO.StreamWriter file = new System.IO.StreamWriter(@"property.txt", true);
file.WriteLine("Add Product{" + pro.toString() + "}" + " " + now);
file.Close();
tableGetData();
MessageBox.Show("Add Product successfully.");
}
else
{
MessageBox.Show("Invalid Product.");
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void button3_Click(object sender, EventArgs e)
{
try
{
if (MessageBox.Show("Are you sure to delete a product?", "Confirm", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
int selectedIndex = table1.CurrentCell.RowIndex;
if (selectedIndex >= 0)
{
id = table1.Rows[selectedIndex].Cells[0].Value.ToString();
proMan = new ProductManager();
proMan.deleteProduct(id);
//write text file
pro = new Product();
DateTime now = DateTime.Now;
System.IO.StreamWriter file = new System.IO.StreamWriter(@"property.txt", true);
file.WriteLine("Delete Product{" + id + "}" + " " + now);
file.Close();
tableGetData();
MessageBox.Show("Delete Product successfully.");
}
else
{
MessageBox.Show("Select a product to delete.");
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}