private void button1_Click(object sender, EventArgs e) { DataTable dt; var db = new DBAccess_MySql("MySql"); string outString = ""; sql = "SELECT * FROM user_info WHERE user_code = '" + tb_userName.Text + "' AND pass_word = '" + tb_userPassword.Text + "'"; var rlt = db.QuerySQL_ToTable(sql, out dt, out outString); if (dt.Rows.Count == 1) { int i = dt.Rows.Count; FRM_CC fc = new FRM_CC(); this.Visible = false; fc.Show(); } else { int i = dt.Rows.Count; MessageBox.Show("请检查用户名和密码是否正确!"); } }
private void button1_Click(object sender, EventArgs e) { DataTable dt; var db = new DBAccess_MySql("MySql"); string outString = ""; sql = "SELECT * FROM user_info WHERE user_code = '" + tb_userName.Text + "' AND pass_word = '" + tb_userPassword.Text + "'"; var rlt = db.QuerySQL_ToTable(sql, out dt, out outString); if (dt.Rows.Count == 1) { int i = dt.Rows.Count; FRM_CC fc = new FRM_CC(); this.Visible = false; fc.Show(); } else { int i = dt.Rows.Count; MessageBox.Show("请检查用户名和密码是否正确!"); } sql = "SELECT use_pl_new_pallet FROM user_info WHERE user_code = '" + tb_userName.Text + "'"; var rlt1 = db.QuerySQL_ToTable(sql, out dt, out outString); try { DataRow dr = dt.Rows[0]; string s = dr[0].ToString(); sql = "UPDATE config_unit SET table_name = '" + tb_userName.Text + "',unit_name = '" + s + "'"; db.ExecSql(sql, out outString); } catch { } }