我要求创建一个应从数据库加载的调查Web表单。
每个问题将有1-10个评级项目，并且结果应该保存到带有问题编号的数据库中。
我尝试使用顶部带有标签控件的Web表单和选项的RadioButtonList来实现它，但是一次只能加载一个问题和答案进行显示。我是网络编程的新手。如果有任何工作代码示例或任何想法如何实现这一点，它将是有帮助的。
我已完成编码，将每个问题放在页面上button click我正在加载下一个问题，但我需要在一个页面上提出所有问题。
public partial class _Default : System.Web.UI.Page
{
public static SqlConnection sqlconn;
protected string PostBackStr;
protected void Page_Load(object sender, EventArgs e)
{
sqlconn = new SqlConnection(ConfigurationManager.AppSettings["sqlconnstr"].ToString());
PostBackStr = Page.ClientScript.GetPostBackEventReference(this, "time");
if (IsPostBack)
{
string eventArg = Request["__EVENTARGUMENT"];
if (eventArg == "time")
{
string str = "select * from tbl_Question";
SqlDataAdapter da2 = new SqlDataAdapter(str, sqlconn);
DataSet ds2 = new DataSet();
da2.Fill(ds2, "Question");
int count = ds2.Tables[0].Rows.Count;
getNextQuestion(count);
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
Label1.Visible = false;
txtName.Visible =false;
Button1.Visible = false;
Panel1.Visible = true;
lblName.Text = "Name : " + txtName.Text;
int score = Convert.ToInt32(txtScore.Text);
lblScore.Text = "Score : " + Convert.ToString(score);
Session["counter"]="1";
Random rnd = new Random();
int i = rnd.Next(1, 10);//Here specify your starting slno of question table and ending no.
//lblQuestion.Text = i.ToString();
getQuestion(i);
}
protected void Button2_Click(object sender, EventArgs e)
{
string str = "select * from tbl_Question ";
SqlDataAdapter da2 = new SqlDataAdapter(str, sqlconn);
DataSet ds2 = new DataSet();
da2.Fill(ds2, "Question");
int count = ds2.Tables[0].Rows.Count;
getNextQuestion(count);
}
public void getQuestion(int no)
{
string str = "select * from tbl_Question where slNo=" + no + "";
SqlDataAdapter da2 = new SqlDataAdapter(str, sqlconn);
DataSet ds2 = new DataSet();
da2.Fill(ds2, "Question");
// int count = ds2.Tables[0].Rows.Count;
if (ds2.Tables[0].Rows.Count > 0)
{
DataRow dtr;
int i = 0;
while (i < ds2.Tables[0].Rows.Count)
{
dtr = ds2.Tables[0].Rows[i];
Session["Answer"] = Convert.ToString(Convert.ToInt32 (dtr["Correct"].ToString())-1);
lblQuestion.Text = "Q." + Session["counter"].ToString() + " " + dtr["Question"].ToString();
lblQuestion2.Text = "Q." + Session["counter"].ToString() + " " + dtr["arQuestion"].ToString();
LblQNNo.Text = Session["counter"].ToString();
RblOption.ClearSelection();
RblOption.Items.Clear();
RblOption.Items.Add(dtr["Option1"].ToString());
RblOption.Items.Add(dtr["Option2"].ToString());
RblOption.Items.Add(dtr["Option3"].ToString());
RblOption.Items.Add(dtr["Option4"].ToString());
RblOption.Items.Add(dtr["Option5"].ToString());
RblOption.Items.Add(dtr["Option6"].ToString());
RblOption.Items.Add(dtr["Option7"].ToString());
RblOption.Items.Add(dtr["Option8"].ToString());
RblOption.Items.Add(dtr["Option9"].ToString());
RblOption.Items.Add(dtr["Option10"].ToString());
i++;
}
}
}
public void getNextQuestion(int cnt)
{
if (Convert.ToInt32(Session["counter"].ToString()) < cnt)
{
Random rnd = new Random();
int i = rnd.Next(1, 10);
lblQuestion.Text = i.ToString();
getQuestion(i);
//qst_no = i;
Session["counter"] = Convert.ToString(Convert.ToInt32(Session["counter"].ToString()) + 1);
}
else
{
Panel2.Visible = false;
//code for displaying after completting the exam, if you want to show the result then you can code here.
}
}
protected void Button3_Click(object sender, EventArgs e)
{
insertAns();
}
private void insertAns()
{
SqlCommand cmd;
sqlconn = new SqlConnection(ConfigurationManager.AppSettings["sqlconnstr"].ToString());
cmd = new SqlCommand("insert into Tbl_Ans(UserID, Question_ID, Answer) values(@ans, @ans1, @ans2)", sqlconn);
cmd.Parameters.AddWithValue("@ans", txtName.Text);
cmd.Parameters.AddWithValue("@ans1", Session["counter"].ToString());
cmd.Parameters.AddWithValue("@ans2", RblOption.SelectedItem.Text);
sqlconn.Open();
int i = cmd.ExecuteNonQuery();
sqlconn.Close();
if (i != 0)
{
lbmsg.Text = "Your Answer Submitted Succesfully";
lbmsg.ForeColor = System.Drawing.Color.ForestGreen;
}
else
{
lbmsg.Text = "Some Problem Occured";
lbmsg.ForeColor = System.Drawing.Color.Red;
}
}
#region Connection Open
public void ConnectionOpen()
{
try
{
if (sqlconn.State == ConnectionState.Closed) { sqlconn.Open(); }
}
catch (SqlException ex)
{
lbmsg.Text = ex.Message;
}
catch (SystemException sex)
{
lbmsg.Text = sex.Message;
}
}
#endregion
#region Connection Close
public void ConnectionClose()
{
try
{
if (sqlconn.State != ConnectionState.Closed) { sqlconn.Close(); }
}
catch (SqlException ex)
{
lbmsg.Text = ex.Message;
}
catch (SystemException exs)
{
lbmsg.Text = exs.Message;
}
}
#endregion
}
答案 0 :(得分：1)
首先我想说你应该使用问题表ID代替问题编号来保存答案以备将来使用。
我不太了解dotnet所以我没有在这里附加任何代码。但我可以建议你
首先将所有带有各自ID的问题提取到一个对象或数组中，或者从它们中获取适配器等。
然后您可以使用表单使用foreach循环显示它们。例如。
假设＆＃34;问题＆＃34;是一个数组，包含从数据库中提取的所有问题。然后申请
<form action="abc" method="post">
foreach(questions as question){
<tr>
<td>(print your question here)</td>
<td><input type="anything you want" name="(print here question.id)" />
</tr>
}
<input type="submit" value="submit" />
</form>
现在，您将在表单提交中获取数据，然后您可以使用已经是问题ID的名称轻松访问答案。所以现在两者都相互联系。
如果不清楚，欢迎任何查询。