Home/ Questions/Q 169727
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-11T12:40:56+00:00

I’m attempting to iterate over the ListViewDataItems in an ASP.Net ListView, and use the

  • 0

I’m attempting to iterate over the ListViewDataItems in an ASP.Net ListView, and use the ListView.ExtractItemValues to get the values from DataBoundControls. This works fine with ITextControls, but I am having difficulty getting the Selected Item from a RadioButtonList.

Here is my markup:

<asp:ListView ID='lvQuiz' runat='server'> <LayoutTemplate> <fieldset> <ul>     <asp:PlaceHolder ID='itemplaceholder' runat='server'></asp:PlaceHolder> </ul>     </fieldset>  <asp:Button ID='cmdSubmit' runat='server' Text='Submit' OnClick='cmdSubmit_Click' />  </LayoutTemplate> <ItemTemplate>     <li>         <fieldset>             <legend>                 <asp:Label ID='lblQuestionText' runat='server' Text='<%# Bind('Question.QuestionText') %>' />             </legend>             <asp:RadioButtonList ID='rblResponse' runat='server' DataTextField='ResponseText' DataValueField='Id'                  DataSource='<%# Bind('Question.PossibleResponses') %>'>             </asp:RadioButtonList>         </fieldset>     </li> </ItemTemplate>

And here is the code where I am trying to extract the values:

var Q = (Quiz)Session['Quiz'];  foreach (var item in lvQuiz.Items) {                     var itemValues = new OrderedDictionary();     lvQuiz.ExtractItemValues(itemValues, item, true);      var myQuestion = Q.UserResponses.Keys         .Where(x => x.QuestionText == itemValues['Question.QuestionText'])         .Single();      Q.UserResponses[myQuestion] = itemValues['Question.PossibleResponses'].SelectedItem }

My problem lies with that last line there. ‘Question.PossibleResponses’ is bound to the RadioButtonList, but the value for itemValues[‘Question.PossibleResponses’] returns a list of ALL my RadioButtonList’s options. How do I tell which one the user selected?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Well, I ended up implementing an extension method for Control that implements a Recursive FindControl, as outlined in Steve Smith blog post on Recursive FindControl. As I only had two bindable controls that I cared about (Label and a ListControl), this ended up being good enough. Tightly coupled to the UI, but I don’t know what else to do.

    • 0