Hi

I have a datalist which contains radiobuttonlist..
As i want to make it in a format like a test paper..

Example:

1. What is the colour of ?

• White
• Black
• Green
• Blue

The QuestionID is hidden (visible = false) in the item template too..
I'm able to find the QuestionID by FindControl()

But due to the program needs.. The Radiobuttonlist should not be retrieve with the Questions due to database table.
So i have search out the QuestionID and based on the QuestionID, I got the answers and answerID for the particular question.

I did...

For i = 0 To DataList1.Items.Count - 1

Dim con_rbn As RadioButtonList = CType(DataList1.Items.Item(i).FindControl("rbn_list"), RadioButtonList)

1.  Instead of hiding a label, I would suggest you use the DataKeys property of the DataList.

2.  Your code is partially correct.  It is just a matter, where do you add this code.  Appropriate place would be the ItemDataBound event of the DataList. 

Sub Item_Bound(sender As Object, e As DataListItemEventArgs)

         If e.Item.ItemType = ListItemType.Item Or _
             e.Item.ItemType = ListItemType.AlternatingItem Then


            ' Retrieve the Label control in the current DataListItem.
            Dim QuestionLabel As Label = _
                CType(e.Item.FindControl("QuestionLabel"), Label)

            'Retrieve the QuestionID
            Dim QuestionID as Integer = Cint(QuestionLabel.Text)

           ' Retrieve the RadioButtonList
           Dim rb As RadioButtonList = CType(e.Item.FindControl("rbn_list"), RadioButtonList)
           
           rb.DataSource = Tier.getAnsForMCQ(QuestionID)
           rb.DataBind()
         End If

      End Sub

Just to add on in case others need to reference...

rb.DataTextField = "mcqAnswer"
rb.DataValueField = "mcqID"