using?System;
using?System.Linq;
using?System.Web.UI;
using?System.Web.UI.WebControls;

public?partial?class?Answer?:?Page
{
????private?readonly?DataClassesDataContext?DC?=?new?DataClassesDataContext（）;

????public?string?QuestionCode
????{
????????get
????????{
????????????if?（ViewState[“QuestionCode“]?==?null）
????????????????return?““;
????????????return?ViewState[“QuestionCode“].ToString（）;
????????}
????????set?{?ViewState[“QuestionCode“]?=?value;?}
????}

????public?string?AnswerCode
????{
????????get
????????{
????????????if?（ViewState[“AnswerCode“]?==?null）
????????????????return?““;
????????????return?ViewState[“AnswerCode“].ToString（）;
????????}
????????set?{?ViewState[“AnswerCode“]?=?value;?}
????}

????public?string?UserName
????{
????????get