从ListView中获取Radiobuttonlist和Checkboxlist中的选定值ASP.NET

Question

我在ASP.NET中创建了一个测验应用程序，我使用ListView显示了问题和答案，并使用了DataPager作为Next Previous按钮。我想知道如何保留每个问题的答案的代码。

Answer 1

这是静态的数据表绑定。你可以将它与你的数据库值绑定。 aspx页面像

<form id="form1" runat="server"> 
    <div> 
     <asp:ListView runat="server" ID="lstQuestions" OnItemDataBound="lstQuestions_ItemDataBound"> 
      <ItemTemplate> 
       <asp:Label runat="server" ID="lblQuestionNo" Text='<%# "Q. "+ Eval("No") %>'></asp:Label> 
       <asp:Label runat="server" ID="lblQuestion" Text='<%#Eval("Question") %>'></asp:Label><br /> 
       Select Answer: 
       <br /> 
       <asp:RadioButtonList ID="rdoAnswers" runat="server" RepeatColumns="2" RepeatDirection="Horizontal"></asp:RadioButtonList> 
      </ItemTemplate> 
     </asp:ListView> 
    </div> 
</form> 

aspx.cs页面，如：

protected void Page_Load(object sender, EventArgs e) 
{ 
    if (!IsPostBack) 
    { 
     //this portion is dynamic 
     //You can get questions from your database. 
     DataTable dt = new DataTable(); 
     dt.Columns.Add("No", typeof(int)); 
     dt.Columns.Add("Question"); 
     for (int i = 1; i < 10; i++) 
      dt.Rows.Add(i, "Your Question -" + i); 
     lstQuestions.DataSource = dt; 
     lstQuestions.DataBind(); 
    } 
} 

protected void lstQuestions_ItemDataBound(object sender, ListViewItemEventArgs e) 
{ 
    //this portion is dynamic 
    //You can get answers from your database. 
    RadioButtonList rdo = (RadioButtonList)e.Item.FindControl("rdoAnswers"); 
    DataTable dt = new DataTable(); 
    dt.Columns.Add("No", typeof(int)); 
    dt.Columns.Add("Answers"); 
    for (int i = 1; i < 5; i++) 
     dt.Rows.Add(i, "Your Answer -" + i); 
    rdo.DataSource = dt; 
    rdo.DataMember = "Answers"; 
    rdo.DataValueField = "No"; 
    rdo.DataBind(); 
}