标签：orm protected cli ack ase system namespace else down
//repeate.aspx <%@ Page Language="C#" AutoEventWireup="true" CodeFile="repeate.aspx.cs" Inherits="repeate" %> <%@ Import Namespace="System.Data" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> <title>无标题页</title> </head> <body> <form id="form1" runat="server"> <div> <asp:Repeater ID="Repeater1" runat="server" OnItemDataBound="Repeater1_ItemDataBound" > <HeaderTemplate><%-- 我是头模板--%> <table width="500"> <tr style="background-color: #ccffcc;"> <td>作者</td> <td>书籍</td> </tr> </HeaderTemplate> <ItemTemplate><%--我是项模板--%> <tr> <td><a href=‘repeate.aspx?id=<%# Eval("au_id")%>‘><%# Eval("au_lname") %></a></td> <td><asp:Repeater ID="Repeater2" runat="server" DataSource=‘<%# Eval("myrela") %>‘> <ItemTemplate> <%# Eval("[/"title_id/"]") %> </ItemTemplate> </asp:Repeater> </td> </tr> </ItemTemplate> <SeparatorTemplate><%--这是分隔线模板--%> <tr> <td colspan="2"> <hr style="border-top:1pt;"/> </td> </tr> </SeparatorTemplate> <FooterTemplate><%--这是脚模板--%> <tr> <td colspan="2" style="font-size:12pt;color:#0099ff; background-color:#e6feda;"> 共<asp:Label ID="lblpc" runat="server" Text="Label"></asp:Label>页 当前为第 <asp:Label ID="lblp" runat="server" Text="Label"></asp:Label>页 <asp:HyperLink ID="hlfir" runat="server" Text="首页"></asp:HyperLink> <asp:HyperLink ID="hlp" runat="server" Text="上一页"></asp:HyperLink> <asp:HyperLink ID="hln" runat="server" Text="下一页"></asp:HyperLink> <asp:HyperLink ID="hlla" runat="server" Text="尾页"></asp:HyperLink> 跳至第 <asp:DropDownList ID="ddlp" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlp_SelectedIndexChanged" > </asp:DropDownList>页 </td> </tr> </table> </FooterTemplate> </asp:Repeater> </div> </form> </body> </html>
//repeate.aspx.cs using System; using System.Data; using System.Data.SqlClient; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; public partial class repeate : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { Repeater1.DataSource = pds(); Repeater1.DataBind(); } } private PagedDataSource pds() { PagedDataSource pds = new PagedDataSource(); //string connstring = ConfigurationManager.ConnectionStrings["pconn"].ConnectionString; // SqlConnection con = new SqlConnection(connstring); // DataSet ds = new DataSet(); //SqlDataAdapter sda = new SqlDataAdapter("select * from authors",con); // sda.Fill(ds,"name"); // SqlDataAdapter sda2 = new SqlDataAdapter("select * from titleauthor",con); // sda2.Fill(ds,"title"); // ds.Relations.Add("myrela",ds.Tables["name"].Columns["au_id"],ds.Tables["title"].Columns["au_id"]); // pds.DataSource = ds.Tables["name"].DefaultView; //Comments类是Diary类的一对多的关联关系 Diary Diary = session.FindObject<Diary>(CriteriaOperator.Parse("Oid=?", 1)); pds.DataSource = Diary.Comments; pds.AllowPaging = true;//允许分页 pds.PageSize = 5;//单页显示项数 pds.CurrentPageIndex = Convert.ToInt32(Request.QueryString["page"]); return pds; } protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e) { if (e.Item.ItemType == ListItemType.Footer) { DropDownList ddlp = (DropDownList)e.Item.FindControl("ddlp"); HyperLink lpfirst = (HyperLink)e.Item.FindControl("hlfir"); HyperLink lpprev = (HyperLink)e.Item.FindControl("hlp"); HyperLink lpnext = (HyperLink)e.Item.FindControl("hln"); HyperLink lplast = (HyperLink)e.Item.FindControl("hlla"); pds().CurrentPageIndex = ddlp.SelectedIndex; int n = Convert.ToInt32(pds().PageCount);//n为分页数 int i = Convert.ToInt32(pds().CurrentPageIndex);//i为当前页 Label lblpc = (Label)e.Item.FindControl("lblpc"); lblpc.Text = n.ToString(); Label lblp = (Label)e.Item.FindControl("lblp"); lblp.Text = Convert.ToString(pds().CurrentPageIndex + 1); if (!IsPostBack) { for (int j = 0; j < n; j++) { ddlp.Items.Add(Convert.ToString(j + 1)); } } if (i <= 0) { lpfirst.Enabled = false; lpprev.Enabled = false; lplast.Enabled = true; lpnext.Enabled = true; } else { lpprev.NavigateUrl = "?page=" + (i - 1); } if (i >= n - 1) { lpfirst.Enabled = true; lplast.Enabled = false; lpnext.Enabled = false; lpprev.Enabled = true; } else { lpnext.NavigateUrl = "?page=" + (i + 1); } lpfirst.NavigateUrl = "?page=0";//向本页传递参数page lplast.NavigateUrl = "?page=" + (n - 1); ddlp.SelectedIndex = Convert.ToInt32(pds().CurrentPageIndex);//更新下拉列表框中的当前选中页序号 } } protected void ddlp_SelectedIndexChanged(object sender, EventArgs e) {//脚模板中的下拉列表框更改时激发 string pg=Convert.ToString((Convert.ToInt32(((DropDownList)sender).SelectedValue)-1));//获取列表框当前选中项 Response.Redirect("repeate.aspx?page="+pg);//页面转向 } }
其中发现的问题：
因为DataSource的数据类型是List()数据集; 所以
var data = new XPQuery<Diary>(session);pds.DataSource = data;会报错：“无法计算未实现 ICollection 的数据源中的计数”；所以有两种改法
1、
var data = new XPQuery<Diary>(session).ToList();pds.DataSource = data;2、
var data = new XPCollection<Diary>(session);pds.DataSource = data;其中XPQuery也可实现查询前几条数据；如前6条数据：
var data = new XPQuery<Diary>(session).Take(6).ToList();pds.DataSource = data;标签：orm protected cli ack ase system namespace else down
原文地址：http://www.cnblogs.com/Aiti59/p/6817437.html
