常常在CSDN上看到有网友问如何才能实现Repeater,DataList, DataGrid的嵌套问题，下面给出一个3层嵌套的示例，可以无限级嵌套下去
<ASP:REPEATER id="rpt_catalog" onitemdatabound="rpt_catalog_OnItemDataBound" runat="server">
<ITEMTEMPLATE>最顶层repeater，index:<%#Container.DataItem%><BR>
<ASP:REPEATER id="rpt_board" onitemdatabound="rpt_board_OnItemDataBound" runat="server">
<ITEMTEMPLATE> 第2层repeater,index:<%#Container.DataItem%><BR>
<ASP:REPEATER id="rpt_boardmaster" runat="server">
<ITEMTEMPLATE> 第3层repeater,index:<%#Container.DataItem%><BR>
</ITEMTEMPLATE>
</ASP:REPEATER>
</ITEMTEMPLATE>
</ASP:REPEATER>
</ITEMTEMPLATE>
</ASP:REPEATER>
Private intFirst As Integer
Private intSecond As Integer
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Put user code to initialize the page here
Dim al As New ArrayList
al.Add(0)
al.Add(1)
rpt_catalog.DataSource = al
rpt_catalog.DataBind()
End Sub
Sub rpt_catalog_OnItemDataBound(ByVal sender As Object, ByVal e As RepeaterItemEventArgs)
Dim rpt As Repeater
rpt = e.Item.FindControl("rpt_board")
intFirst = e.Item.ItemIndex
Dim al As New ArrayList
al.Add(intFirst & ".0")
al.Add(intFirst & ".1")
rpt.DataSource = al
rpt.DataBind()
End Sub
Sub rpt_board_OnItemDataBound(ByVal sender As Object, ByVal e As RepeaterItemEventArgs)
Dim rpt As Repeater
rpt = e.Item.FindControl("rpt_boardmaster")
intSecond = e.Item.ItemIndex
Dim al As New ArrayList
al.Add(intFirst & "." & intSecond & ".0")
al.Add(intFirst & "." & intSecond & ".1")
rpt.DataSource = al
rpt.DataBind()
End Sub
代码经过测试，但请自行优化