前台实现方法:

<%# Container.ItemIndex + 1%>

<%# this.Repeater1.Items.Count + 1%>

后台实现方法:

<ItemTemplate><asp:Label id="Label1" Runat="server"></asp:Label></ItemTemplate>

    protected void Repeater1_ItemDataBound1(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
    {

        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            ((Label)e.Item.FindControl("Label1")).Text = Convert.ToString(e.Item.ItemIndex + 1);
        }
    }