Hi, ive had a few questions on this subject, still having problems.
I want to find the values from a number of dropdown and textbox controls inside a repeater control.
db.ConnectionString = SystemConnString
    db.Open()
    Dim selectedAdTitle As String = ""
    Dim enteredAdFullName As String = ""
    cmd.Parameters.Add(New SqlParameter("@TransactionID", TransactionID))
    cmd.Parameters.Add(New SqlParameter("@AdTitle", selectedAdTitle))
    cmd.Parameters.Add(New SqlParameter("@AdFullName", enteredAdFullName))
    For i As Integer = 0 To myRepeater.Items.Count - 1
        Dim AdTitle As DropDownList = DirectCast(myRepeater.Items(i).FindControl("AdTitle"), DropDownList)
        Dim AdFullName As TextBox = DirectCast(myRepeater.Items(i).FindControl("AdFullName"), TextBox)
        selectedAdTitle = AdTitle.Text
        enteredAdFullName = AdFullName.Text
        cmd.Parameters("@AdTitle").Value = selectedAdTitle
        cmd.Parameters("@AdFullName").Value = enteredAdFullName
        SQL = ""
        SQL = SQL & "INSERT INTO InsuredPersons (TransactionID,Title,FullName) VALUES ("
        SQL = SQL & "@TransactionID,"
        SQL = SQL & "@AdTitle,"
        SQL = SQL & "@AdFullName"
        SQL = SQL & ")"
        cmd.CommandText = SQL
        cmd.Connection = db
        cmd.ExecuteNonQuery()
    Next
AdTitle and AdFullName dont seem to be bringing across the values. There is no error so they have found the control ok. Below is the ASPX file code.
<asp:Repeater ID="myRepeater" runat="server">
    <ItemTemplate>
        <asp:DropDownList ID="AdTitle" runat="server">
            <asp:ListItem Selected="True" Value="" Text=""/>
            <asp:ListItem Selected="False" Value="Miss" Text="Miss"/>
            <asp:ListItem Selected="False" Value="Ms" Text="Ms"/>
            <asp:ListItem Selected="False" Value="Mrs" Text="Mrs"/>
            <asp:ListItem Selected="False" Value="Mr" Text="Mr"/>
            <asp:ListItem Selected="False" Value="Other" Text="Other"/>
        </asp:DropDownList>
       <asp:TextBox ID="AdFullName" runat="server"></asp:TextBox>
   </ItemTemplate>
Edit:
Repeater is constructed on page load
    Dim repeatTimes((TotalAdInsured - 1)) As Integer
    myRepeater.DataSource = repeatTimes
    myRepeater.DataBind()
DirectCast is done on button click
Protected Sub continueButtonDetails_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles continueButtonDetails.Click
Answer: Had to put IsPostback around Repeater Construction.
If Not IsPostBack() Then
        Dim repeatTimes((TotalAdInsured - 1)) As Integer
        myRepeater.DataSource = repeatTimes
        myRepeater.DataBind()
    End If