复制代码 代码如下:

protected void Page_Load(object sender, EventArgs e)

{

if (!Page.IsPostBack)

{

this.dtCategory = GetCategoryTable();

this.dtProduct = GetProductTable();

rptCategoryList.DataSource = dtCategory;

rptCategoryList.DataBind();

}

}

// 准备一张分类表

DataTable GetCategoryTable()

{

DataTable dt = new DataTable();

dt.Columns.Add("CategoryId", typeof(int));

dt.Columns.Add("CategoryTitle", typeof(string));

for (int i = 1; i <= 3; i++)

{

DataRow row = dt.NewRow();

row["CategoryId"] = i;

row["CategoryTitle"] = "分类名字 " + i + "";

dt.Rows.Add(row);

}

return dt;

}

// 准备一张产品表

DataTable GetProductTable()

{

DataTable dt = new DataTable();

dt.Columns.Add("ProductTitle", typeof(string));

dt.Columns.Add("CategoryId", typeof(int));

for (int i = 1; i <= 9; i++)

{

DataRow row = dt.NewRow();

row["ProductTitle"] = "产品名字 " + i + "";

if (i > 6) row["CategoryId"] = 3;

else if (i > 3) row["CategoryId"] = 2;

else row["CategoryId"] = 1;

dt.Rows.Add(row);

}

return dt;

}

// 获取某个类别的产品

DataTable GetProductTable(int categoryId)

{

DataView dv = this.dtProduct.DefaultView;

dv.RowFilter = " CategoryId=" + categoryId + " ";

return dv.ToTable();

}

protected void rptCategoryList_ItemDataBound(object sender, RepeaterItemEventArgs e)

{

if (e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.Item)

{

DataRowView drv = (DataRowView)e.Item.DataItem;

Literal ltlTitle = (Literal)e.Item.FindControl("ltlTitle");

ltlTitle.Text = drv["CategoryTitle"].ToString();

Repeater rptProductList = (Repeater)e.Item.FindControl("rptProductList");

rptProductList.DataSource = GetProductTable(Convert.ToInt32(drv["CategoryId"]));

rptProductList.DataBind();

}

}

protected void rptProductList_ItemDataBound(object sender, RepeaterItemEventArgs e)

{

if (e.Item.ItemType == ListItemType.AlternatingItem || e.Item.ItemType == ListItemType.Item)

{

DataRowView drv = (DataRowView)e.Item.DataItem;

Literal ltlTitle = (Literal)e.Item.FindControl("ltlTitle");

ltlTitle.Text = drv["ProductTitle"].ToString();

}

}

前台aspx代码

复制代码 代码如下:

<</CODE>form id="form1" runat="server">

<</CODE>div>

<</CODE>asp:Repeater ID="rptCategoryList" runat="server" OnItemDataBound="rptCategoryList_ItemDataBound">

<</CODE>ItemTemplate>

<</CODE>div>

<</CODE>div>

<</CODE>asp:Literal ID="ltlTitle" runat="server"></</CODE>asp:Literal></</CODE>div>

<</CODE>div>

<</CODE>ul>

<</CODE>asp:Repeater ID="rptProductList" runat="server" OnItemDataBound="rptProductList_ItemDataBound">

<</CODE>ItemTemplate>

<</CODE>li>

<</CODE>asp:Literal ID="ltlTitle" runat="server"></</CODE>asp:Literal>

</</CODE>li>

</</CODE>ItemTemplate>

</</CODE>asp:Repeater>

</</CODE>ul>

</</CODE>div>

</</CODE>div>

</</CODE>ItemTemplate>

</</CODE>asp:Repeat</</CODE>div>

</</CODE>form>