Using Repeater with TextBox

ElPato · September 7th, 2004, 09:15 PM

Farily simple question, I think, but am stuck and would appreciate some help. The goal of the page is this: a dropdown box, from which 1 to 30 can be selected, and from the number selected a corresponding number of textboxes generated. The user will enter data in each text box, the data averaged and the average displayed.

The code is below. There are two main areas in which I'm not sure how to proceed.
1) In the BuildDataEntryForm subroutine (triggered by the onSelectedIndexChanged event of the dropdownlist), I attempt to build out a series of textboxes. However, the code below produces the following result (or something similar):

System.Web.UI.WebControls.TextBoxEnter Value System.Web.UI.WebControls.TextBoxEnter Value System.Web.UI.WebControls.TextBoxEnter Value ... ... ...

That is, it displays the reference names of the textboxes, but does not actually place a textbox in the form.

2) In the Calculate routine, I simply want to retrieve the values from each of the textboxes, convert them to numeric form, and calculate an average. However, given the above there are no textboxes from which the values can be extracted.

I hope that explains the issue sufficiently. Any help will be appreciated.

The code is copied below:

<Script Language="VB" Runat="Server" >
    Sub Page_Load()
            If Not Page.IsPostback Then
                txtLabel1.Visible = False
                btnCalculate.Visible = False
        Dim ListIndex = New ArrayList
        Dim intX as Integer
                For intX = 1 to 30
                     ListIndex.Add(intX)
                Next intX
                ListIndex.TrimToSize()
                lstDropDown.DataSource=ListIndex
                lstDropDown.DataBind()
            End If
          lstDropDown.AutoPostBack = True
    End Sub

        Sub BuildDataEntryForm(Source As Object, e as EventArgs)
            txtLabel1.Visible = False
            btnCalculate.Visible = True
            Dim intX As Integer
            Dim arrList = New ArrayList
            For intX = 1 to lstDropDown.SelectedItem.Value
                arrList.add(new TextBox())
            Next intX
            rptRepeater.DataSource=arrList
            rptRepeater.DataBind()
        End Sub

        Sub Calculate(Source As Object, e As EventArgs)
            Dim strTemp as String = ""
            Dim txtTemp as New TextBox()
            txtLabel1.Visible = True
            For Each item As RepeaterItem In rptRepeater.Items

'**** Not Sure What Should Go Here

            Next item
            Response.Write(txtTemp)
        End Sub

</script>

<html>
<body>
   <h3>Enter the numbers to be averaged</h3>
   <form Runat="Server">
      <asp:dropdownlist id="lstDropDown" Runat="Server" onSelectedIndexChanged="BuildDataEntryForm" /> <br />
      <asp:Repeater id="rptRepeater" Runat="Server">
          <ItemTemplate>
              <%#Container.DataItem%>Enter Value
          </ItemTemplate>
      </asp:Repeater>
      <asp:Button id="btnCalculate" Runat="Server" OnClick="Calculate" Text="Calculate Average" />
      <br />
      <asp:textbox id="txtLabel1" Runat="Server" />
   </form>
</body>

</html>