title: how could i collect all the radio button that chosen in submit button?
body: <p>Here is my Code:</p>
  
  <pre><code>public partial class Play : System.Web.UI.UserControl
  {
  
      int surveyId = 153;
      protected void Page_Load(object sender, EventArgs e)
      {
         // surveyId = int.Parse(Request[SurveyContext.SurveyID]);
          FillQuestion();
  
      }
      void FillQuestion()
      {
          IList&lt;Eskadenia.Framework.Survey.Entitis.Question&gt; QuestionLst = Eskadenia.Framework.Survey.Data.QuestionManager.GetQuestionBySurveyId(surveyId);
          try
          {
              RepPlay.DataSource = QuestionLst;
              RepPlay.DataBind();
          }
          catch (Exception ex)
          {
              Response.Write(ex.InnerException);
          }
      }
  
      protected void RepPlay_ItemDataBound(object sender, RepeaterItemEventArgs e)
      {
          RadioButtonList rblAnswers = ((RadioButtonList)e.Item.FindControl("rblAnswers"));
  
          IList&lt;Eskadenia.Framework.Survey.Entitis.Answer&gt; answerlst;
          answerlst = Eskadenia.Framework.Survey.Data.AnswerManager.GetAnswerByQuestionID(((Eskadenia.Framework.Survey.Entitis.Question)(e.Item.DataItem)).ID);
  
          for (int i = 0; i &lt; answerlst.Count; i++)
          {
              rblAnswers.Items.Add(new ListItem(answerlst[i].Name, answerlst[i].ID.ToString()));
          }
  
      }
  
      protected void btnSubmit_Click(object sender, EventArgs e)
      {
  
          Response.Redirect("~/Surveys.aspx");
      }
  
  }
  </code></pre>