asp.net vb radiobuttonlist object reference

[janetb99]

I don't know until the page is created how many radiobuttonlists I will need. So, I create them and store the number in a hidden label. But, when I want to get the selection from the radiobuttonlist on postback, I keep getting a object reference error. I've tried finding the control without a findControl, with a findControl and with a master page content reference and findControl. No luck. Any help appreciated...

Dim myConStr As String = ""
If lblSidCount.Text <> "0" Then
Dim x As Integer = 1, y As Integer = Convert.ToInt32(lblSidCount.Text)
Do While x <= y
Dim myContent As ContentPlaceHolder = CType(Page.Master.FindControl("ContentPlaceHolder1"), ContentPlaceHolder)
Dim radConStr As New RadioButtonList
radConStr = CType(myContent.FindControl("rad" & x.ToString), RadioButtonList)
myConStr &= radConStr.SelectedItem.Text & "~"
x = x + 1
Loop
myConStr = Left(myConStr, Len(myConStr) - 1)
End If

[janetb99]

This seems to work - am I crazy for doing this? Private radCon As RadioButtonList() Protected Overrides Sub OnInit(ByVal e As EventArgs) MyBase.OnInit(e) If (Request("str") = 1) Then Dim myList As dsSql = New dsSql() ''''instantiate the function to get dataset Dim ds As New Data.DataSet ds = myList.dsConSessionTimes(Request("eid")) If ds.Tables("conSessionTimes").Rows.Count > 0 Then radCon = New RadioButtonList(ds.Tables("conSessionTimes").Rows.Count - 1) {} Dim i As Integer = 0 Dim rad As RadioButtonList = New RadioButtonList() rad.ID = "rad" + i.ToString() rad.DataSource = ds.Tables("conSessions") rad.DataTextField = ds.Tables("conSessions").Columns("session_name").ToString rad.DataBind() rad.SelectedIndex = 0 phConcurrent.Controls.Add(rad) radCon(i) = rad For Each j As Data.DataRow In ds.Tables("conSessionTimes").Rows Dim rad As RadioButtonList = New RadioButtonList() rad.ID = "rad" + i.ToString() rad.DataSource = ds.Tables("conSessions") rad.DataTextField = ds.Tables("conSessions").Columns("session_name").ToString rad.DataBind() rad.SelectedIndex = 0 phConcurrent.Controls.Add(rad) radCon(i) = rad i = i + 1 Next End If End If End Sub