jQuery+存储过程实现无刷新分页（九）

涉及到得知识点：

1.分页存储过程

2.分页原理

3.jQuery DOM操作

4.jQuery Ajax存取数据

 

效果图：

思路：数据库---DAL----BLL----UI

具体代码：

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go


CREATE PROCEDURE [dbo].[GetDataByPager]
(
   @startIndex INT,--代表起始条数(从0开始)
   @tableName VARCHAR(50),--代表分页的表名称
   @pageSize INT=5,--代表每页的条数
   @condition VARCHAR(1000)='1=1',--代表条件
   @key VARCHAR(20)='id', --代表主键
   @orderType VARCHAR(20)='desc' --代表排序方式
)AS
BEGIN
  DECLARE @SQL  VARCHAR(1000)
  SET @SQL='select  TOP ' +CONVERT(VARCHAR(20),@pagesize)+' * FROM '+@tableName
           +' WHERE '+ @condition+' and '+@key+' NOT IN(SELECT TOP  ' +CONVERT(VARCHAR(20),@startIndex)+' '+@key+' FROM '+@tableName+' where '+@condition+' order by '+@key+' '+@orderType+') order by '+@key+' '+@orderType
  EXEC(@SQL)
END

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

--得到要分页的表的总记录数
CREATE PROCEDURE [dbo].[GetDataByPager_Count]
(
  @tableName VARCHAR(200), 
  @condition VARCHAR(1000)='1=1'
)
AS
BEGIN
  DECLARE @strsql  VARCHAR(2000)
  SET @strsql = 'select count(*) from '+@tableName+' where '+@condition
  EXEC(@strsql)
END

 DAL层：

public static partial class AuthorService
	{
        /// <summary>
        /// 分页取数据
        /// </summary>
        /// <param name="start">起始记录数（从1开始)</param>
        /// <param name="limit">每页的条数</param>
        /// <param name="condition">查询条件</param>
        /// <returns></returns>
        public static IList<Author> GetAuthorByPager(int start, int limit, string condition)
        {
            //string strsql = string.Format("Exec GetDataByPager2 {0},'{1}',{2},'{3}'", start, limit, condition);
            string strsql = string.Format("Exec GetDataByPager {0},'{1}',{2},'{3}'", start - 1, "Author", limit, condition);

            return GetAuthorsBySql(strsql);
        }
        /// <summary>
        /// 条件查询结果集数目
        /// </summary>
        /// <param name="condition">条件</param>
        /// <returns></returns>
        public static int GetAuthorByPager_Count(string condition)
        {
            //string strsql = string.Format("GetDataByPager_Count '{0}'", condition);
            string strsql = string.Format("GetDataByPager_Count '{0}','{1}' ", "Author", condition);
            return DBHelper.GetScalar(strsql);
        }
	}

 BLL层代码：

 public static partial class AuthorManager
    {
        /// <summary>
        /// 分页取数据
        /// </summary>
        /// <param name="start">起始记录数（从1开始)</param>
        /// <param name="limit">每页的条数</param>
        /// <param name="condition">查询条件</param>
        /// <returns></returns>
        public static IList<Author> GetAuthorByPager(int start, int limit, string condition)
        {
            return DAL.AuthorService.GetAuthorByPager(start, limit, condition);
        }
        /// <summary>
        /// 条件查询结果集数目
        /// </summary>
        /// <param name="condition">条件</param>
        /// <returns></returns>
        public static int GetAuthorByPager_Count(string condition)
        {
            return DAL.AuthorService.GetAuthorByPager_Count(condition);
        }
    }

引用了两个常用的js 代码：

　　String.format = function() {
    if (arguments.length == 0)
        return null;
    var str = arguments[0];
    for (var i = 1; i < arguments.length; i++) {
        var re = new RegExp('\{' + (i - 1) + '\}', 'gm');
        str = str.replace(re, arguments[i]);
    }
    return str;
} 

function StringBuffer()
{
    this._strings_=new Array();
}
StringBuffer.prototype.append = function(str)
{
      this._strings_.push(str);
}
StringBuffer.prototype.toString=function(){
     return this._strings_.join("");
}

 UI层得到数据：

public partial class HandleAuthorList : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (Request["startIndex"] != null && Request["limit"] != null)
        {
            int startIndex = int.Parse(Request["startIndex"].ToString());
            int limit = int.Parse(Request["limit"].ToString());
            IList<Models.Author> authors = BLL.AuthorManager.GetAuthorByPager(startIndex, limit, "1=1");
            string json = JsonHelper.Serialize(authors);
            Response.Write(json);
        }
        else if (Request["type"] != null)
        {
           int rowCount= BLL.AuthorManager.GetAuthorByPager_Count("1=1");
           Response.Write(rowCount);
        }
    }
}

 Ajax异步刷新：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AuthorMgr.aspx.cs" Inherits="AuthorMgr" %>

<!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 id="Head1" runat="server">
    <title></title>

    <script src="scripts/jquery-1.2.6.js" type="text/javascript"></script>

    <script src="scripts/jquery-1.2.6-vsdoc-cn.js" type="text/javascript"></script>

    <script src="scripts/string.format.js" type="text/javascript"></script>

    <script src="scripts/StringBuffer.js" type="text/javascript"></script>
    <script type="text/javascript">
    <script type="text/javascript">
        var pageIndex = 1; //用于保存或设置当前页数
        var startIndex = 1; //用于保存或设置记录条数
        var limit = 3; //用于设置分页的条数
        var rowcount = 0; //表示总记录数
        var pageCount = 0; //代表总页数
        var oFooter = "<tr align='left' style='color:#003399;background-color:#99CCCC;'>"+
			          "<td colspan='4'><table border='0'>"+
                      "<tr><td><a>首页</a></td><td><a>下一页</a></td><td><a>上一页</a></td><td><a>最后一页</a></td></tr>" +
                      "</table></td></tr>"
        function AjaxPager() {
            var $table = $("#GridView1");
            $("a", $table).attr("href", "javascript:void(0)")
                      .click(function() {
                          $("tr>td", $table).parent().remove();
                          var oA = $(this).text();
                          if (oA == "首页") {
                              pageIndex = 1;
                          } else if (oA == "上一页") {
                              pageIndex = pageIndex == 1 ? 1 : pageIndex - 1;
                          } else if (oA == "下一页") {
                              pageIndex = pageIndex >= pageCount ? pageIndex : pageIndex + 1;
                          } else {
                              pageIndex = pageCount;
                          }
                          startIndex = (pageIndex - 1) * limit + 1;

                          $.getJSON("HandleAuthorList.aspx", { startIndex: startIndex, limit: limit }, function(josnArray) {
                              var sb = new StringBuffer();
                              $.each(josnArray, function(i, item) {
                                  var trTemplate = "<tr style='color:#003399;background-color:White;'>" +
			                                   "<td>{0}</td><td>{1}</td><td>{2}</td><td>{3}</td>" +
		                                       "</tr>";
                                  var oTr = String.format(trTemplate, item.id, item.au_Id, item.au_Lname, item.phone);
                                  sb.append(oTr);

                              })

                              $table.append(sb.toString());
                              if ($("td>a", $table).length == 0) $table.append(oFooter);
                              var $tableFooter = $("td>table", $table);
                              if (pageIndex == 1)
                                  $("tr>td:gt(1)", $tableFooter).hide();
                              else if (pageIndex == pageCount)
                                  $("tr>td:lt(2)", $tableFooter).hide();
                              AjaxPager();

                          })
                      });
        }
        $(document).ready(function() {
            $.get("HandleAuthorList.aspx", { type: "getcount" }, function(data) {
                rowcount = parseInt(data);
                if (rowcount % limit == 0)
                    pageCount = rowcount / limit;
                else
                    pageCount = parseInt(rowcount / limit) + 1;
                AjaxPager();
            });

        });
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
        <asp:GridView ID="GridView1" runat="server" AllowPaging="True" 
            AutoGenerateColumns="False" BackColor="White" BorderColor="#3366CC" 
            BorderStyle="None" BorderWidth="1px" CellPadding="4" DataKeyNames="Id" 
            DataSourceID="SqlDataSource1" EmptyDataText="没有可显示的数据记录。" PageSize="3" 
            Width="494px" EnableViewState="False">
            <PagerSettings FirstPageText="首页" LastPageText="最后一页" 
                Mode="NextPreviousFirstLast" NextPageText="下一页" PreviousPageText="上一页" />
            <RowStyle BackColor="White" ForeColor="#003399" />
            <Columns>
                <asp:BoundField DataField="Id" HeaderText="Id" ReadOnly="True" 
                    SortExpression="Id" />
                <asp:BoundField DataField="Au_Id" HeaderText="Au_Id" SortExpression="Au_Id" />
                <asp:BoundField DataField="Au_Lname" HeaderText="Au_Lname" 
                    SortExpression="Au_Lname" />
                <asp:BoundField DataField="Phone" HeaderText="Phone" SortExpression="Phone" />
            </Columns>
            <FooterStyle BackColor="#99CCCC" ForeColor="#003399" />
            <PagerStyle BackColor="#99CCCC" ForeColor="#003399" HorizontalAlign="Left" />
            <SelectedRowStyle BackColor="#009999" Font-Bold="True" ForeColor="#CCFF99" />
            <HeaderStyle BackColor="#003399" Font-Bold="True" ForeColor="#CCCCFF" />
        </asp:GridView>
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="<%$ ConnectionStrings:JQuerySimpleDBConnectionString1 %>" 
            DeleteCommand="DELETE FROM [Author] WHERE [Id] = @Id" 
            InsertCommand="INSERT INTO [Author] ([Au_Id], [Au_Lname], [Au_Fname], [Phone], [Addr], [City], [State], [Zip]) VALUES (@Au_Id, @Au_Lname, @Au_Fname, @Phone, @Addr, @City, @State, @Zip)" 
            ProviderName="<%$ ConnectionStrings:JQuerySimpleDBConnectionString1.ProviderName %>" 
            SelectCommand="SELECT [Id], [Au_Id], [Au_Lname], [Au_Fname], [Phone], [Addr], [City], [State], [Zip] FROM [Author] order by Id desc" 
            UpdateCommand="UPDATE [Author] SET [Au_Id] = @Au_Id, [Au_Lname] = @Au_Lname, [Au_Fname] = @Au_Fname, [Phone] = @Phone, [Addr] = @Addr, [City] = @City, [State] = @State, [Zip] = @Zip WHERE [Id] = @Id">
            <DeleteParameters>
                <asp:Parameter Name="Id" Type="Int32" />
            </DeleteParameters>
            <InsertParameters>
                <asp:Parameter Name="Au_Id" Type="String" />
                <asp:Parameter Name="Au_Lname" Type="String" />
                <asp:Parameter Name="Au_Fname" Type="String" />
                <asp:Parameter Name="Phone" Type="String" />
                <asp:Parameter Name="Addr" Type="String" />
                <asp:Parameter Name="City" Type="String" />
                <asp:Parameter Name="State" Type="String" />
                <asp:Parameter Name="Zip" Type="String" />
            </InsertParameters>
            <UpdateParameters>
                <asp:Parameter Name="Au_Id" Type="String" />
                <asp:Parameter Name="Au_Lname" Type="String" />
                <asp:Parameter Name="Au_Fname" Type="String" />
                <asp:Parameter Name="Phone" Type="String" />
                <asp:Parameter Name="Addr" Type="String" />
                <asp:Parameter Name="City" Type="String" />
                <asp:Parameter Name="State" Type="String" />
                <asp:Parameter Name="Zip" Type="String" />
                <asp:Parameter Name="Id" Type="Int32" />
            </UpdateParameters>
        </asp:SqlDataSource>
    
    </div>
    </form>
</body>
</html>