private void button1_Click_1(object sender, EventArgs e) { 登录界面 dl = new 登录界面(); this.Hide(); dl.ShowDialog(); this.Dispose(); }
private void button1_Click(object sender, EventArgs e) { if (txtPassword.Text != txtPasswordAgain.Text) { MessageBox.Show("您好,您两次密码输入的不一样哦,请重新输入呀"); } else { using (SqlConnection SQLConn = new SqlConnection(ConnStr)) { string SQLStr = $"select * from accNum where accNumber = '{txtName.Text}'"; using (SqlCommand SQLCmd = new SqlCommand(SQLStr, SQLConn)) { SQLConn.Open(); int Resultcount = Convert.ToInt32(SQLCmd.ExecuteScalar()); if (Resultcount > 0) { MessageBox.Show("对不起,已经有同名账号了"); } else { using (SqlConnection SQLConn1 = new SqlConnection(ConnStr)) { string InsertStr = $"insert into accNum values(@accNumber,@password)"; SqlParameter[] pars = { new SqlParameter("@accNumber", txtName.Text), new SqlParameter("@password", txtPassword.Text), }; int x = SQLHelper.SQLExcuteNoQuery(InsertStr, pars); if (x > 0) { MessageBox.Show("成功啦"); MessageBox.Show("马上跳转至登录界面"); 登录界面 dl = new 登录界面(); this.Hide(); dl.ShowDialog(); this.Dispose(); } else { MessageBox.Show("no"); } } } } } } }