how to set some of the listView insertItem data manually (in code)? (simple but need help)

hi i have an insertItemTemplate as follows, and all i want to do is to programmatically add all the values myself, without asking the user, of course, the userID, picID and dateTime should not be asked to the user, the comments field of course, i want to ask the user as they are leaving a comment about a picture on the site :)... seems simple but really frustrating.

<InsertItemTemplate>
 <span style="">UserID:
 <asp:TextBox Visible="false" ID="UserIDTextBox" runat="server" Text='<%# Bind("UserID") %>' />
 <br />CommentForPicID:
 <asp:TextBox Visible="false" ID="CommentForPicIDTextBox" runat="server" 
  Text='<%# Bind("CommentForPicID") %>' />
 <br />Comment:
 <asp:TextBox TextMode="MultiLine" ID="CommentTextBox" runat="server" Text='<%# Bind("Comment") %>' />
 <br />DateAdded:
 <asp:TextBox Visible="false" ID="DateAddedTextBox" runat="server" 
  Text='<%# Bind("DateAdded") %>' />
 <br />
 <asp:Button ID="InsertButton" runat="server" CommandName="Insert" 
  Text="Insert" />
 <asp:Button ID="CancelButton" runat="server" CommandNam开发者_开发百科e="Cancel" 
  Text="Clear" />
 <br /><br /></span>
</InsertItemTemplate>

i tried the following and it worked

Protected Sub lvComments_ItemCommand(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.ListViewCommandEventArgs) Handles lvComments.ItemCommand
    If e.Item.ItemType = ListViewItemType.InsertItem Then
        Dim tb = New TextBox
        tb = e.Item.FindControl("UserIDTextBox")
        If tb IsNot Nothing Then
            tb.Text = Request.Cookies("UserID").Value
        End If
        tb = Nothing

        tb = e.Item.FindControl("CommentForPicIDTextBox")
        If tb IsNot Nothing Then
            tb.Text = Request.Cookies("ShownPicID").Value
        End If
        tb = Nothing

        tb = e.Item.FindControl("DateAddedTextBox")
        If tb IsNot Nothing Then
            tb.Text = DateTime.Now.ToString
        End If
        tb = Nothing

    End If
End Sub

you can do it on the ItemCreated event, but then it alters the data sent to the browser, and then this data is going to be sent back (unnecessary round trip), so i did it on ItemCommand, which is when you receive the command, the code is exactly the same and will work on both of the events mentioned!!