datalist分页只显示一页的问题
源码：
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Data;using MySql.Data.MySqlClient;public partial class SourceList : System.Web.UI.Page{ DB db = new DB(); string source_type,tag; PagedDataSource pds; DataView dview; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) //首次加载页面 { try { source_type = db.ConverSql(Request["SourceType"].ToString()); tag = db.ConverSql(Request["Tag"].ToString()); } catch (Exception ex) { Response.Redirect("~/Default.aspx"); } ViewState["pageindex"] = "0"; InitData(); } } /* *显示界面上的资源列表 * */ public void InitData() { string strsql = ""; pds = new PagedDataSource(); pds.PageSize = 2; pds.AllowPaging = true; Title = source_type + "|" + tag + "下载列表"; strsql = "select * from tb_SourceInfo where SourceType ='" + source_type + "' and Tag='" + tag + "'"; MySqlCommand mycmd = db.GetCommandStr(strsql); try { db.ExecNonQuery(mycmd); } catch (Exception ex) { Response.Redirect("~/Default.aspx"); } DataTable dtTable = db.GetDataSet(mycmd, "news"); pds.CurrentPageIndex = int.Parse(ViewState["pageindex"].ToString()); if (dtTable != null) //判断dsTable里面是否存在数据 { dview = dtTable.DefaultView; pds.DataSource = dview; this.SouceList.DataSource = pds; this.SouceList.DataBind(); if (!pds.IsFirstPage) { lkPre.Visible = true; } else { lkPre.Visible = false; } if (!pds.IsLastPage) { lkNext.Visible = true; } else { lkNext.Visible = false; } this.page_num.InnerText = Convert.ToString(pds.CurrentPageIndex + 1); this.page_num_total.InnerText = "共" + pds.PageCount.ToString() + "页"; } else //不存在数据 { //this.td_content.InnerHtml = "<div>没有内容了</div>"; lkPre.Visible = false; lkPre.Visible = false; } } protected void IndexChanging(object sender, CommandEventArgs e) { string strCommand = ((LinkButton)sender).CommandArgument.ToString(); int pageindex = int.Parse(ViewState["pageindex"].ToString()); switch (strCommand) { case "pre": pageindex = pageindex - 1; break; case "next": pageindex = pageindex + 1; break; } ViewState["pageindex"] = pageindex; InitData(); }}<div style="float:left;width:70%;margin-left:2PX;border:1px solid #9BD;"> <asp:DataList ID="SouceList" runat="server" Width="700px"> <ItemTemplate> <div style="font-size:20px;"><a href="download.aspx?SourceID=<%# DataBinder.Eval(Container.DataItem, "SourceID").ToString() %>" class="list_a"><%# DataBinder.Eval(Container.DataItem, "SourceName").ToString() %></a></div> <div style="font-size:small;"><span>资源类型：</span><%# DataBinder.Eval(Container.DataItem, "SourceType").ToString() %><span> 资源标签： <%# DataBinder.Eval(Container.DataItem, "Tag").ToString() %></span></div> <div style="color:#999;font-size:small;"><span>资源描述：</span><%# DataBinder.Eval(Container.DataItem, "Discription").ToString() %></div> <div style="text-align:right;font-size:small;">上传日期：<%# DataBinder.Eval(Container.DataItem, "LoadTime").ToString().Replace("0:00:00", "")%></div> </ItemTemplate> </asp:DataList> <div> <span style="font-size:small;">当前第</span><span id="page_num" runat="server" style="font-size:small;color:Red;"></span><span style="margin-right:30px;font-size:small;">页</span> <asp:linkbutton ID="lkPre" OnCommand="IndexChanging" CommandArgument="pre" runat="server" >上一页></asp:linkbutton> <asp:linkbutton ID="lkNext" OnCommand="IndexChanging" CommandArgument="next" runat="server" >下一页</asp:linkbutton> <span id="page_num_total" style="font-size:small; margin-left:30px;" runat="server"></span> </div> </div>