private void button4_Click(object sender, EventArgs e)
{
string str = "Server=localhost;User ID=root;Password=979268;Database=project;CharSet=gbk";
MySqlConnection con = new MySqlConnection(str);
con.Open();
string strcmd = "";
string id = textBox2.Text;
string quantity = textBox3.Text;
if (id != "" && quantity != "")
{
strcmd = "select Product_id from shelf where Product_id = " + id + ";";
MySqlCommand cmd = new MySqlCommand(strcmd, con);
MySqlDataReader mysqldr = cmd.ExecuteReader();
if (mysqldr.HasRows)
{
mysqldr.Close();
strcmd = "select Product_id,product_name,sale_price,description from product where Product_id = " + id + ";";
cmd = new MySqlCommand(strcmd, con);
MySqlDataAdapter ada = new MySqlDataAdapter(cmd);
DataSet ds = new DataSet();
ada.Fill(ds);//查询结果填充数据集
double totalpriceofoneproduct = (Convert.ToDouble(ds.Tables[0].Rows[0]["sale_price"].ToString())) * (Convert.ToInt32(quantity));
orderItem newOrderItem = new orderItem();
newOrderItem.Location = new Point(10, itemHeight);
newOrderItem.ID = id;
newOrderItem.name = ds.Tables[0].Rows[0]["product_name"].ToString();
newOrderItem.money = totalpriceofoneproduct.ToString();
newOrderItem.description = ds.Tables[0].Rows[0]["description"].ToString();
newOrderItem.quantity = quantity;
panel1.Controls.Add(newOrderItem);
myArr.Add(newOrderItem);
itemHeight += 40;
con.Close();
}
else
{
MessageBox.Show("There is no such product with this id in shelf now!");
textBox2.Text = "";
textBox3.Text = "";
}
}
else
{
MessageBox.Show("Both ID and quantity are required!");
}
textBox2.Text = "";
textBox3.Text = "";
}
private void timer1_Tick(object sender, EventArgs e)
{
today_date = today.ToString("yyyy-MM-dd");
totalCost = 0;
for (int i = 0; i < myArr.Count; i++)
{
orderItem o = myArr[i] as orderItem;
totalCost += Convert.ToDouble(o.money);
}
totalCost0 = totalCost;
this.label4.Text = totalCost.ToString() + "￥";
}
private void button3_Click(object sender, EventArgs e)
{
string str = "Server=localhost;User ID=root;Password=979268;Database=project;CharSet=gbk";
MySqlConnection con = new MySqlConnection(str);
con.Open();
string strcmd = "";
string strcmd0 = "";
string VIPid = textBox1.Text;
if (VIPid != "")
{
strcmd0 = "select user_id from user where user_type = 'member' and user_id = " + VIPid + ";";
MySqlCommand cmd0 = new MySqlCommand(strcmd0, con);
MySqlDataReader mysqldr0 = cmd0.ExecuteReader();
if (mysqldr0.HasRows)
{
mysqldr0.Close();
VIPIfExist = true;
}
else
{
mysqldr0.Close();
VIPIfExist = false;
}
}
else
{
VIPIfExist = true;
}
if (VIPIfExist)
{
MessageBox.Show("Order completed with cost : " + totalCost0);
for (int i = 0; i < myArr.Count; i++)
{
orderItem o = myArr[i] as orderItem;
strcmd += "UPDATE shelf SET quantity=quantity - " + o.quantity + " WHERE Product_id=" + o.ID + ";";
if (VIPid != "")
{
strcmd += "INSERT INTO `salerecord` (`product_id`, `quantity`, `Sale_date`, `user_id`) VALUES ('" + o.ID + "', '" + o.quantity + "', '" + today_date + "', '" + VIPid + "');";
}
else
{
strcmd += "INSERT INTO `salerecord` (`product_id`, `quantity`, `Sale_date`) VALUES ('" + o.ID + "', '" + o.quantity + "', '" + today_date + "');";
}
}
strcmd += "INSERT INTO assets (`change_date`, `changeofmoney`) VALUES ('" + today_date + "', '" + totalCost0.ToString() + "');";
MySqlCommand cmd = new MySqlCommand(strcmd, con);
cmd.ExecuteNonQuery();
con.Close();
myArr.Clear();
totalCost = 0;
textBox1.Text = "";
this.label4.Text = "0￥";
this.panel1.Controls.Clear();
}
else
{
DialogResult result = MessageBox.Show("VIP not exist! Do you want to create a new VIP with this id ?", "Sorry", MessageBoxButtons.OKCancel);
if (result == DialogResult.OK)
{
string strcmd1 = "INSERT INTO `user` (`user_id`, `user_type`, `user_name`, `passward`) VALUES ('" + VIPid + "', 'member', 'admin', '" + VIPid + "');";
MySqlCommand cmd = new MySqlCommand(strcmd1, con);
cmd.ExecuteNonQuery();
con.Close();
MessageBox.Show("VIP created! Please click OK again to complete the order!");
}
else
{
textBox1.Text = "";
}
}
itemHeight = 10;
}
