private void button1_Click(object sender, EventArgs e) { DBTools db = new DBTools(".", "wkdl", true, "sa", "wdxg"); SqlDataReader b = db.getResult("Select * from userlogin where uname='" + textBox1.Text.Trim() + "'and uPassword='******'"); try { if (b.Read()) { db.Disconnect(); DBTools dc = new DBTools(".", "wkdl", true, "sa", "wdxg"); SqlDataReader bb = db.getResult("Select * from userlogin where uname='" + textBox1.Text.Trim() + "'and usa='admin'"); DLname c = DLname.getInstance(); c.Str = textBox1.Text; if (bb.Read()) { dc.Disconnect(); MessageBox.Show("Hello administrator.", "Hello", MessageBoxButtons.OK, MessageBoxIcon.Information); MainForm mfa = new MainForm(); mfa.Text = "Administrator System"; mfa.Show(); } else { dc.Disconnect(); MessageBox.Show("Hello VIP member", "Hello", MessageBoxButtons.OK, MessageBoxIcon.Information); MainForm mfb = new MainForm(); mfb.Text = "Member System"; mfb.Show(); } dc.Disconnect(); this.Hide(); } else { db.Disconnect(); MessageBox.Show("Login failed! Please check your input.", "Sorry", MessageBoxButtons.OK, MessageBoxIcon.Warning); } } catch (Exception ex) { MessageBox.Show(ex.Message); } }
private void Update_Load(object sender, EventArgs e) { db = new DBTools(".", "wkdl", true, "sa", "wdxg"); SqlDataReader b = db.getResult("Select * from ware where id=" + c.Num); while (b.Read()) { textBox1.Text = b["id"].ToString(); textBox2.Text = b["warename"].ToString(); textBox3.Text = b["price"].ToString(); textBox4.Text = b["type"].ToString(); textBox5.Text = b["zip"].ToString(); textBox6.Text = b["stocks"].ToString(); } db.Disconnect(); }
private void button4_Click_1(object sender, EventArgs e) { String id = dataGridView1.Rows[x].Cells[0].Value.ToString(); String stock = dataGridView1.Rows[x].Cells[5].Value.ToString(); if (int.Parse(stock) == 0) { MessageBox.Show("Inventory is empty. Please select others."); } else { string name = DLname.getInstance().Str; string command = "select uReservation from userlogin where uName =" + name; DBTools db = new DBTools(".", "wkdl", true, "sa", "wdxg"); SqlDataReader b = db.getResult("select * from userlogin where uName ='" + name + "' and uReservation != ''"); //MessageBox.Show(b.Read().ToString()); if (b.Read()) { MessageBox.Show("Sorry! Each member can only reserve one vechicle.", "Sorry", MessageBoxButtons.OK, MessageBoxIcon.Warning); db.Disconnect(); return; } db.Disconnect(); string update = "update ware set stocks = " + (int.Parse(stock) - 1) + " where [id]=" + id; string reserve = "; update userlogin set uReservation = 'Model: " + dataGridView1.Rows[x].Cells[1].Value + ", Price: $" + dataGridView1.Rows[x].Cells[2].Value + "/mouth, Zip: " + dataGridView1.Rows[x].Cells[3].Value + ", Reserve time: " + DateTime.Now.ToLocalTime() + "' where [uName] = '" + DLname.getInstance().Str + "'"; da.InsertCommand = con.CreateCommand(); da.InsertCommand.CommandText = update + reserve; //MessageBox.Show(update + reserve); con.Open(); da.InsertCommand.ExecuteNonQuery(); con.Close(); MessageBox.Show("Reserve successfully, please wait for agent response."); LoadDGV(); } }
private void button1_Click(object sender, EventArgs e) { try { db = new DBTools(".", "wkdl", true, "sa", "wdxg"); if (textBox1.Text.Trim().Length == 0 || textBox2.Text.Trim().Length == 0 || textBox3.Text.Trim().Length == 0 || textBox4.Text.Trim().Length == 0) { MessageBox.Show("不能有任何一项为空!", "系统提示"); } if (textBox2.Text.Trim().Equals('0')) { MessageBox.Show("入库数量不能为0", "系统提示"); return; } else { if (IsNumeric(textBox2.Text.Trim()) && IsNumeric(textBox3.Text.Trim()) && IsNumeric(textBox4.Text.Trim())) { string oth = "select id,warename,price,type,zip,stocks from ware where warename='" + textBox1.Text.Trim().ToString() + "'"; da = new SqlDataAdapter(oth, con); ds = new DataSet(); da.Fill(ds); string str; if (ds.Tables[0].Rows.Count == 0) { str = "insert into ware (warename ,price,type,zip,stocks) values('" + textBox1.Text.Trim().ToString() + "'," + int.Parse(textBox4.Text.Trim()) + "," + 0 + "," + int.Parse(textBox3.Text.Trim()) + "," + int.Parse(textBox2.Text.Trim()) + ")"; } else { str = "update ware set price=" + int.Parse(textBox4.Text.Trim()) + ",zip=" + int.Parse(textBox3.Text.Trim()) + ",stocks=stocks+" + int.Parse(textBox2.Text.Trim()) + " where [warename]='" + textBox1.Text.Trim().ToString() + "'"; } da.InsertCommand = con.CreateCommand(); da.InsertCommand.CommandText = str; con.Open(); da.InsertCommand.ExecuteNonQuery(); con.Close(); MessageBox.Show("增加新商品成功!"); ListViewItem l = new ListViewItem(); l.Text = textBox1.Text.ToString(); l.Tag = l.Text; bid.Add(l.Tag.ToString()); l.SubItems.Add(textBox2.Text.ToString()); l.SubItems.Add(textBox3.Text.ToString()); l.SubItems.Add(textBox4.Text.ToString()); l.SubItems.Add(label6.Text.ToString()); listView1.Items.Add(l); textBox1.Text = ""; textBox2.Text = ""; textBox3.Text = ""; textBox4.Text = ""; } else { MessageBox.Show("除商品名称都只能是数字", "系统提示"); textBox2.Text = ""; textBox3.Text = ""; textBox4.Text = ""; } } db.Disconnect(); } catch (Exception ec) { MessageBox.Show(ec.Message); } }