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 程式師世界 >> 編程語言 >> .NET網頁編程 >> ASP.NET >> 關於ASP.NET >> 三層+存儲過程實現分頁示例代碼

三層+存儲過程實現分頁示例代碼

日期:2017/1/9 14:02:20      編輯:關於ASP.NET

    前台設計:

    復制代碼 代碼如下:
    <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="paging.aspx.cs" Inherits="五二一練習.paging" %>
    <!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></title>
    <script src="js/Jquery1.7.js" type="text/javascript"></script>
    <script type="text/javascript">
    $(function () {
    $('#txtPagination').focus(function () {
    $(this).val("");
    })
    })
    </script>
    </head>
    <body>
    <form id="form1" runat="server">
    <div>
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"
    Height="336px" Width="685px">
    <Columns>
    <asp:BoundField DataField="Id" HeaderText="編號" />
    <asp:BoundField DataField="NewsTitle" HeaderText="標題" />
    <asp:BoundField DataField="NewsContent" HeaderText="內容" />
    <asp:BoundField DataField="CreateTime"
    DataFormatString="{0:yyyy-MM-dd hh:mm:ss}" HeaderText="發布時間" />
    </Columns>
    </asp:GridView>
    <asp:LinkButton ID="btnFirst" runat="server" onclick="btnFirst_Click">第一頁</asp:LinkButton>
    <asp:LinkButton
    ID="btnPre" runat="server" onclick="btnPre_Click">上一頁</asp:LinkButton>
    <asp:LinkButton ID="btnNext"
    runat="server" onclick="btnNext_Click">下一頁</asp:LinkButton>
    <asp:LinkButton ID="btnLast" runat="server" onclick="btnLast_Click">最後一頁</asp:LinkButton><asp:TextBox
    ID="txtPagination" runat="server"></asp:TextBox>
    <asp:LinkButton ID="btnSkip" runat="server" onclick="btnSkip_Click">GO</asp:LinkButton>
    </div>
    </form>
    </body>
    </html>


    首先在數據庫創建存儲過程

    復制代碼 代碼如下:
    create proc usp_role_GetDateByPageIndex
    @pageSize int,
    @pageIndex int
    as
    begin
    select * from
    (
    select *,ROW_NUMBER() over(order by role_id) as rownumber from role) as tbl
    where tbl.rownumber between (@pageSize*(@pageIndex-1)+1) and @pageIndex*@pageSize
    end
    exec usp_role_GetDateByPageIndex 5,3


    在項目中添加BLL,DAL,DataAccess,MODEL層
    在DAL中寫一個方法:

    復制代碼 代碼如下:
    //自己寫的方法,分頁獲取數據列表
    public DataTable GetListDataTable(int PageSize, int PageIndex)
    {
    SqlParameter[] parameters = {
    new SqlParameter("@PageSize", SqlDbType.Int),
    new SqlParameter("@PageIndex", SqlDbType.Int)
    };
    parameters[0].Value = PageSize;
    parameters[1].Value = PageIndex;
    return DbHelperSQL.RunProcedureDataTable("usp_role_GetDateByPageIndex", parameters);
    }
    在BLL中調用GetListDataTable:
    public DataTable GetListDataTable(int pagesize, int pageindex)
    {
    return dal.GetListDataTable(pagesize, pageindex);
    }
    在DbHelper中添加RunProcedureDataTable方法:
    public static DataTable RunProcedureDataTable(string stroreProcName, IDataParameter[] parameters)
    {
    using (SqlConnection connection = new SqlConnection(connectionString))
    {
    DataTable dt = new DataTable();
    connection.Open();
    SqlDataAdapter sqlDA = new SqlDataAdapter();
    sqlDA.SelectCommand = BuildQueryCommand(connection, stroreProcName, parameters);
    sqlDA.Fill(dt);
    connection.Close();
    return dt;
    }
    }


    然後在後台調用即可:

    復制代碼 代碼如下:


    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Data;
    namespace 練習
    {
    public partial class paging : System.Web.UI.Page
    {
    int pagesize = 10;
    int pageindex = 1;
    protected void Page_Load(object sender, EventArgs e)
    {
    if (!IsPostBack)
    {
    ViewState["pageindex"] = 1;
    LadaData();
    GetListPageindex();
    }
    }
    private void GetListPageindex()
    {
    BLL.T_News1 bnews = new BLL.T_News1();
    int totalcount = bnews.GetRecordCount("");
    if (totalcount % pagesize == 0)
    {
    ViewState["lastpageindex"] = totalcount / pagesize;
    }
    else
    {
    ViewState["lastpageindex"] = totalcount / pagesize + 1;
    }
    }
    private void LadaData()
    {
    BLL.T_News1 bnews = new BLL.T_News1();
    DataTable dt = bnews.GetListDataTable(pagesize, Convert.ToInt32(ViewState["pageindex"]));
    this.GridView1.DataSource = dt;
    this.GridView1.DataBind();
    }
    //第一頁
    protected void btnFirst_Click(object sender, EventArgs e)
    {
    ViewState["pageindex"] = 1;
    LadaData();
    }
    //上一頁
    protected void btnPre_Click(object sender, EventArgs e)
    {
    int pageindex = Convert.ToInt32(ViewState["pageindex"]);
    if (pagesize>1)
    {
    pageindex--;
    ViewState["pageindex"] = pageindex;
    LadaData();
    }
    }
    //下一頁
    protected void btnNext_Click(object sender, EventArgs e)
    {
    int pageindex = Convert.ToInt32(ViewState["pageindex"]);
    if (pageindex<Convert.ToInt32(ViewState["lastpageindex"]))
    {
    pageindex++;
    ViewState["pageindex"] = pageindex;
    LadaData();
    }
    }
    //最後一頁
    protected void btnLast_Click(object sender, EventArgs e)
    {
    ViewState["pageindex"] = ViewState["lastpageindex"];
    LadaData();
    }
    //跳轉頁面
    protected void btnSkip_Click(object sender, EventArgs e)
    {
    int result;
    if (int.TryParse(txtPagination.Text, out result) == true)
    {
    ViewState["pageindex"] = txtPagination.Text.Trim();
    LadaData();
    }
    else
    {
    txtPagination.Text = "請輸入合法的數字";
    }
    }
    }
    }

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