//登陆用户 private void button_登录_Click(object sender, EventArgs e) { user us = new user(); try { if (textBox_用户名.Text.Length <= 0) { MessageBox.Show("请输入用户名"); } else if (us.user_live(sql, textBox_用户名.Text.Trim()) == false) { MessageBox.Show("该用户不存在"); } else if (us.user_land(sql, this, textBox_用户名.Text.Trim(), textBox_密码.Text.Trim())) { if (!this.live(us.get_lx(sql, textBox_用户名.Text.Trim()), us.get_id(sql, textBox_用户名.Text.Trim()))) { add(us.get_lx(sql, textBox_用户名.Text.Trim()), us.get_id(sql, textBox_用户名.Text.Trim())); } this.Visible = false; 操作窗口 f = new 操作窗口(sql, us.get_id(sql, textBox_用户名.Text.Trim()), us.get_lx(sql, textBox_用户名.Text.Trim())); f.ShowDialog(); } } catch (Exception cv) { MessageBox.Show(cv.Message); } }
public 退出界面(操作窗口 c) { InitializeComponent(); this.f = c; }