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两层嵌套
protected void rpt_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                Repeater rpt = (Repeater)e.Item.FindControl(&"rpt_Level04&");
                int typeFatherID = ((CommonType)e.Item.DataItem).TypeID;
                rpt.DataSource = da.GetAllNodeInfo(tt, typeFatherID);
                rpt.DataBind();
            }
        }

三层嵌套

protected void rpt_ItemDataBound(object sender, RepeaterItemEventArgs e)
        {
            if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                Repeater rpt = (Repeater)e.Item.FindControl(&"rpt_Level04&");
                int typeFatherID = ((CommonType)e.Item.DataItem).TypeID;
                rpt.DataSource = da.GetAllNodeInfo(tt, typeFatherID);
                rpt.DataBind();
            }
        }