private void button1_Click(object sender, EventArgs e) { i--; answer aw = new answer(); string sql = "select*from answer where Id='" + i + "'"; DataTable dt = SqlHelper.GetList(sql); if (dt.Rows.Count > 0) { aw.A = dt.Rows[0][1].ToString(); aw.B = dt.Rows[0][2].ToString(); aw.C = dt.Rows[0][3].ToString(); aw.D = dt.Rows[0][4].ToString(); aw.title = dt.Rows[0][5].ToString(); richtxtTitle.Text = aw.title; richtxtA.Text = aw.A; richtxtB.Text = aw.B; richtxtC.Text = aw.C; richtxtD.Text = aw.D; lbltopic.Text = i.ToString(); } else { MessageBox.Show("当前页已经是第一题!"); i++; return; } }
private void Form1_Load(object sender, EventArgs e) { answer aw = new answer(); string sql = "select*from answer where Id='1'"; DataTable dt = SqlHelper.GetList(sql); aw.A = dt.Rows[0][1].ToString(); aw.B = dt.Rows[0][2].ToString(); aw.C = dt.Rows[0][3].ToString(); aw.D = dt.Rows[0][4].ToString(); aw.title = dt.Rows[0][5].ToString(); richtxtTitle.Text = aw.title; richtxtA.Text = aw.A; richtxtB.Text = aw.B; richtxtC.Text = aw.C; richtxtD.Text = aw.D; lbltopic.Text = "1"; }