protected void Button1_Click(object sender, EventArgs e) { string userName = txtName.Text; string question = txtPassQuestion.Text; string solution = FormsAuthentication.HashPasswordForStoringInConfigFile(txtPassSolution.Text, "MD5"); string sql = "select * from tb_login where Name='" + userName + "' and PassQuestion ='" + question + "' and PassSolution='" + solution + "'"; try { OleDbDataReader sdr = mydo.row(sql); sdr.Read(); txtPass.Text = Operate.Decrypting(sdr["Pass"].ToString()); } catch (Exception ex) { Response.Write(ex.Message.ToString()); } }