ajax分页

ajaxLD.aspx.cs

public partial class userCenter_ajaxLD : CenterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Response.Clear();
        System.Text.StringBuilder sb = new System.Text.StringBuilder();
        int ee3 = DNTRequest.GetFormInt("ee3", 0);
        if (ee3 > 0)
        {
            int ee1 = DNTRequest.GetFormInt("ee1", 0);
            int ee2 = DNTRequest.GetFormInt("ee2", 1);
            int count = 0;
            int pagesize = 5;
            if (ee1 == 1)
            {
                DataTable dt = AllTableHelp.GetAllInfo("(select m.Truename nc,m.Imgpath tx,m.State mstate,ld.* from h_message ld left join h_member m on ld.refMID=m.MID) tb1",
                    "*", "Createdate", true, pagesize, ee2, " and mstate=1 and refThis=" + ee3, out count);
                if (dt.Rows.Count > 0)
                {
                    int i = 0;
                    foreach (DataRow dr in dt.Rows)
                    {
                        if (i % 2 == 0)
                        {
                            sb.Append("<div class=\"neio\" style=\"margin-top: 11px;\"><dl><dt><img src=\"" + ResolveUrl("~/"));
                            sb.Append(dr["tx"] + "\" width=\"30\" height=\"31\" /></dt><dd><a href=\"#0\">");
                            sb.Append(dr["refMID"].ToString() == userid.ToString() ? "我说" : dr["nc"]);
                            sb.Append("</a>" + dr["contents"] + "</dd><dd style=\"float: left; color: #a1a1a1; float: right;  505px;\">");
                            sb.Append(Convert.ToDateTime(dr["Createdate"]).ToString("yyyy年MM月dd日 HH：mm") + "</dd></dl></div>");
                        }
                        else
                        {
                            sb.Append("<div class=\"neio\" style=\"margin-top: 21px;\"><dl><dt><img src=\"" + ResolveUrl("~/"));
                            sb.Append(dr["tx"] + "\" width=\"30\" height=\"31\" /></dt><dd><a href=\"#0\">");
                            sb.Append(dr["refMID"].ToString() == userid.ToString() ? "我说" : dr["nc"]);
                            sb.Append("</a>" + dr["contents"] + "</dd><dd style=\"float: left; color: #a1a1a1; float: right;  505px;\">");
                            sb.Append(Convert.ToDateTime(dr["Createdate"]).ToString("yyyy年MM月dd日 HH：mm") + "</dd></dl></div>");
                        }
                        i++;
                    }
                    if (count > pagesize)
                        sb.Append(getPageNum(count, pagesize, ee2, ee1, ee3));
                }
            }
            else if (ee1 == 2)
            {

            }
            else if (ee1 == 3)
            {

            }
        }
        Response.Write(sb);
        Response.End();
    }

    private string getPageNum(int total, int pagesize, int page, int ee1, int ee3)
    {
        if (page < 1)
            page = 1;
        var allpage = 0;
        var next = 0;
        var pre = 0;
        var startcount = 0;
        var endcount = 0;
        var pagestr = "";
        var sjStr = " href=\"#0\" onclick=\"yb_ld(" + ee1 + ",";
        if (page < 1)
            page = 1;
        if (pagesize != 0)
        {
            allpage = Convert.ToInt32(total / pagesize);
            allpage = Convert.ToInt32((total % pagesize) != 0 ? allpage + 1 : allpage);
            allpage = Convert.ToInt32(allpage == 0 ? 1 : allpage);
        }
        next = page + 1;
        pre = page - 1;
        startcount = (page + 5) > allpage ? allpage - 9 : page - 4;//中间页起始序号
        //中间页终止序号
        endcount = page < 5 ? 10 : page + 5;
        if (startcount < 1)
            startcount = 1;//为了避免输出的时候产生负数，设置如果小于1就从序号1开始
        if (allpage < endcount)
            endcount = allpage;//页码+5的可能性就会产生最终输出序号大于总页码，那么就要将其控制在页码数之内
        pagestr += "<div class=\"divPInfo\">共<span>" + total + "</span>条记录&nbsp;&nbsp;&nbsp;&nbsp;每页<span>"
            + pagesize + "</span>条&nbsp;&nbsp;&nbsp;&nbsp;共<span>" + allpage + "</span>页</div>";
        pagestr += "<div class=\"pagelist\">";
        pagestr += "<ul>";
        if (page > 1)
            pagestr += "<li><a" + sjStr + "1," + ee3 + ");\">首页</a></li><li><a" + sjStr + pre + "," + ee3 + ");\">上一页</a></li>";
        //else
        //    pagestr += "<li class=\"bjy\">首页</li><li class=\"bjy\">上一页</li>";
        //中间页处理，这个增加时间复杂度，减小空间复杂度
        for (var i = startcount; i <= endcount; i++)
        {
            if (page == i)
                pagestr += "<li class=\"current\">" + i + "</li>";
            else
                pagestr += "<li><a" + sjStr + +i + "," + ee3 + ");\">" + i + "</a></li>";
        }
        if (page != allpage)
            pagestr += "<li><a" + sjStr + next + "," + ee3 + ");\">下一页</a></li><li><a" + sjStr + allpage + "," + ee3 + ");\">末页</a></li>";
        //else
        //    pagestr += "<li class=\"bjy\">下一页</li><li class=\"bjy\">末页</li>";
        pagestr += "</ul>";
        pagestr += "</div>";

        return pagestr;
    }

}

$(function(){    
    $("div[cc]").each(function(i){
        yb_ld(1, 1, $(this).attr("cc"));
    });
});
function yb_ld(ee1, ee2, ee3){//类型，第几页，对应的id下的
    $.ajax({
        type : "POST",
        url : 'ajaxLD.aspx',
        data : {"ee1" : ee1, "ee2" : ee2, "ee3" : ee3},
        beforeSend : function(xmlHttpRequest){
            //$("div[cc='" + ee3 + "']").html("<img src='../images/loading.gif' />");
        },
        success : function(data,textStatus){
            $("div[cc='" + ee3 + "']").html(data);
        },
        complete : function(xmlHttpRequest, textStatus){            
        },
        error : function(){
        }
    });
}
function tjfy(ee1, ee2){
    var bcsr = $.trim(ee1);
    if(bcsr.length < 1){
        alert("请输入页码");
        return false;
    }        
    var newPar = /^\d+$/;
    if(!newPar.test(bcsr)){
        alert("页码只能输入正整数");
        return false;
    }
    if(ee1 < 1){
        alert("页码最小只能输入1");
        return false;
    }
    if(parseInt(ee2) < parseInt(ee1)){
        alert("页码最大只能输入" + ee2);
        return false;
    }
}
function fkfy(){
    return tjfy($("#txtPageFKGo").val(), $("#hfFKIndex").val());
}