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public string ReaderQuestion(string type)
{
//所有题目
DataTable ddt = (DataTable)ViewState["question"];
//获取选择的答案
string answer = Request.Form["answer"];
//获取题目序号
int num = Convert.ToInt32(hidNum.Text);
int sum = Convert.ToInt32(HidSum.Text);
//给上一题的答案赋值
if (num - 1 >= 0)
{
ddt.Rows[num - 1]["Answer"] = answer;
}
if (type == "up")
{
if (num <= sum && num > 0)
{
num = num - 1;
}
}
else if (type == "next")
{
if (num < sum)
{
num = num + 1;
}
}
hidNum.Text = num.ToString(); ;
//查询当前序号的题目信息
DataRow[] drs = ddt.Select(string.Format("QuestionNum={0}", num));
if (drs.Length > 0)
{
DataRow dr = drs[0];
StringBuilder sb = new StringBuilder();
sb.Append("<table cellpadding=\"3\" cellspacing=\"0\" border=\"0\" class=\"intable\"><tr><td class=\"borr\" colspan=\"4\"><div>");
sb.Append(num + "." + dr["Title"]);
sb.Append("</div></td></tr><tr>");
string QuestionType = dr["QuestionType"].ToString().Trim();
//判断题目类型生成不同的HTML
if ("多选".Trim().Equals(QuestionType))
{
string[] selectAn = dr["SelectAn"].ToString().Split('|');
for (int i = 0; i < selectAn.Length; i++)
{
sb.Append("<td class=\"bor\"><input id=\"input_" + i + "\" type=\"checkbox\" name=\"answer\" value=" + selectAn[i] + "/>" + selectAn[i] + "</td>");
}
}
else if ("单选".Trim().Equals(QuestionType))
{
string[] selectAn = dr["SelectAn"].ToString().Split('|');
for (int i = 0; i < selectAn.Length; i++)
{
sb.Append("<td class=\"bor\"><input id=\"input_" + i + "\" type=\"radio\" name=\"answer\" value=" + selectAn[i] + " />" + selectAn[i] + "</td>");
}
}
else if ("更多题型".Trim().Equals(QuestionType))
{
}
sb.Append("</tr></table>");
ViewState["question"] = ddt; //将最新的数据保存到viewstate中
return sb.ToString();
}
else
{
return "已经没有题目了!";
}
}