repeater之嵌套绑定，使用初学者。。

1 //下拉绑定
2 void autoOldbind()
3 {
4 this.DropDownList1.DataSource &＃61; OldBLL.QueryAll();
5 this.DropDownList1.DataTextField &＃61; "OldName";
6 this.DropDownList1.DataValueField &＃61; "ID";
7 this.DropDownList1.DataBind();
8 }
9 //大类绑定
10 void autobind()
11 {
12 this.auto_repOld.DataSource &＃61; OldBLL.QueryAll();
13 this.auto_repOld.DataBind();
14 }
15
16 //嵌套绑定
17 protected void repeat_dataBind(object sender, RepeaterItemEventArgs e)
18 {
19 Repeater rep &＃61; e.Item.FindControl("auto_repyong") as Repeater;//找到里层的repeater对象
20 //DataRowView row &＃61; (DataRowView)e.Item.DataItem;
21 _Old dv &＃61; (_Old)e.Item.DataItem;
22 //提取大类ID
23 int CategorieId &＃61; Convert.ToInt32(dv.ID);
24 _Young y &＃61; new _Young();
25 y.OldID &＃61; CategorieId;
26 rep.DataSource &＃61; YoungBLL.QueryYoung(y);
27 rep.DataBind();
28 }
29
30 //增增小类
31 protected void Button1_Click(object sender, EventArgs e)
32 {
33 _Young y &＃61; new _Young();
34 string youngtest &＃61; this.TextBox1.Text.Trim();
35 int OLdIndex &＃61;Convert.ToInt32(this.DropDownList1.SelectedItem.Value);
36 y.OldID &＃61; OLdIndex;
37 y.YoungName &＃61; youngtest;
38 YoungBLL.AddYoung(y);
39 autobind();
40 this.auto_repOld.ItemDataBound &＃43;&＃61; new RepeaterItemEventHandler(repeat_dataBind);
41 }