ASP.NET分页存储过程自定义用户控件
网上有很多分页存储过程，但是基本上都是提供一个单纯的存储过程，没有具体的怎样去实现。最近做一个项目用户的数数据相当大（一百万以上的数据），如果用.NET自带的分页基本上是跑不动了，不是提示超时就是死在那里。于是就想到用存储过程分页来实现，去网上逛了一大圈终于找了几个比较好的存储过程。接下去就开始做测试等等，最后就干脆把它做成用户控件算了，以后用直接拖到页面上，传几个属性进去就可以实现分页，免得每次都重复同样的code。
经本人测试，对于Sqlserver的效率相当快，而对于Oracle的效率（按某个字段倒序排）不是很理想，如果不排序效率很理想，这点没有深入研究（Oracle为什么按倒序排速度很慢，在PL/SQL里也一样）。
先发布SqlServer版的分页自定义存储过程，下载代码：
https://files.cnblogs.com/cherish58/sql%20serverå页åå¨è¿ç¨.rar
存储过程（该存储过程为网上下载）：
复制 
保存
下面为用户控件前台html代码：
复制 保存
下面为后台代码：
复制 保存
经本人测试，对于Sqlserver的效率相当快，而对于Oracle的效率（按某个字段倒序排）不是很理想，如果不排序效率很理想，这点没有深入研究（Oracle为什么按倒序排速度很慢，在PL/SQL里也一样）。
先发布SqlServer版的分页自定义存储过程，下载代码：
https://files.cnblogs.com/cherish58/sql%20serverå页åå¨è¿ç¨.rar
存储过程（该存储过程为网上下载）：
复制 保存CREATE PROCEDURE GetRecordFromPage
@tblName varchar(255), -- 表名
@RetColumns varchar(1000) = '*', -- 需要返回的列，默认为全部
@Orderfld varchar(255), -- 排序字段名
@PageSize int = 10, -- 页尺寸
@PageIndex int = 1, -- 页码
@IsCount bit = 0, -- 返回记录总数, 非 0 值则返回
@OrderType varchar(50) = 'asc', -- 设置排序类型, 非 asc 值则降序
@strWhere varchar(1000) = '' -- 查询条件 (注意: 不要加 where)
AS
declare @strSQL varchar(1000) -- 主语句
declare @strTmp varchar(300) -- 临时变量
declare @strOrder varchar(400) -- 排序类型
if @IsCount != 0 --执行总数统计
begin
if @strWhere != ''
set @strSQL = 'select count(*) as Total from [' + @tblName + '] where ' + @strWhere
else
set @strSQL = 'select count(*) as Total from [' + @tblName + ']'
end
else --执行查询操作
begin
if @OrderType != 'asc'
begin
set @strTmp = '<(select min'
set @strOrder = ' order by [' + @Orderfld +'] desc'
end
else
begin
set @strTmp = '>(select max'
set @strOrder = ' order by [' + @Orderfld +'] asc'
end
set @strSQL = 'select top ' + str(@PageSize) + ' ' + @RetColumns + ' from ['
+ @tblName + '] where [' + @Orderfld + ']' + @strTmp + '(['
+ @Orderfld + ']) from (select top ' + str((@PageIndex-1)*@PageSize) + ' ['
+ @Orderfld + '] from [' + @tblName + ']' + @strOrder + ') as tblTmp)'
+ @strOrder
if @strWhere != ''
set @strSQL = 'select top ' + str(@PageSize) + ' ' + @RetColumns + ' from ['
+ @tblName + '] where [' + @Orderfld + ']' + @strTmp + '(['
+ @Orderfld + ']) from (select top ' + str((@PageIndex-1)*@PageSize) + ' ['
+ @Orderfld + '] from [' + @tblName + '] where (' + @strWhere + ') '
+ @strOrder + ') as tblTmp) and (' + @strWhere + ') ' + @strOrder
if @PageIndex = 1
begin
set @strTmp = ''
if @strWhere != ''
set @strTmp = ' where (' + @strWhere + ')'
set @strSQL = 'select top ' + str(@PageSize) + ' ' + @RetColumns + ' from ['
+ @tblName + ']' + @strTmp + ' ' + @strOrder
end
end
exec (@strSQL)下面为用户控件前台html代码：
复制 保存<%@ Control Language="c#" AutoEventWireup="false" Codebehind="GetPagerForSql.ascx.cs" Inherits="doHope.GetPagerForSql" TargetSchema=%> <asp:label id="Label2" runat="server" Font-Size="9pt">共</asp:label><FONT face="宋体"> </FONT></FONT><asp:label id="lbl_RecordCnt" runat="server" Font-Size="9pt"></asp:label><FONT face="宋体"> </FONT><asp:label id="Label3" runat="server" Font-Size="9pt">项</asp:label><FONT face="宋体"> </FONT><asp:label id="Label4" runat="server" Font-Size="9pt" ForeColor="Black">|</asp:label><FONT face="宋体"> </FONT><asp:linkbutton id="lkbFirst" runat="server" Font-Size="9pt" Enabled="False" ForeColor="Black" CommandArgument="First">首页</asp:linkbutton><FONT face="宋体"> </FONT><asp:linkbutton id="lkbPre" runat="server" Font-Size="9pt" Enabled="False" ForeColor="Black" CommandArgument="Pre">上一页</asp:linkbutton><FONT face="宋体"> </FONT><asp:linkbutton id="lkbNext" runat="server" Font-Size="9pt" Enabled="False" ForeColor="Black" CommandArgument="Next">下一页</asp:linkbutton><FONT face="宋体"> </FONT><asp:linkbutton id="lkbLast" runat="server" Font-Size="9pt" Enabled="False" ForeColor="Black" CommandArgument="Last">末页</asp:linkbutton><FONT face="宋体"> </FONT><asp:label id="Label5" runat="server" Font-Size="9pt" ForeColor="Black">|</asp:label><FONT face="宋体"> </FONT><asp:label id="Label6" runat="server" Font-Size="9pt">转</asp:label><asp:textbox id="txt_CurrentPage" runat="server" Enabled="False" Width="35px" Height="18px" AutoPostBack="True"></asp:textbox><FONT face="宋体"></FONT> <asp:label id="Label8" runat="server" Font-Size="9pt" ForeColor="Black">/</asp:label><FONT face="宋体"> </FONT><asp:label id="lbl_PageCnt" runat="server" Font-Size="9pt"></asp:label><FONT face="宋体"> </FONT><asp:label id="Label9" runat="server" Font-Size="9pt">页</asp:label>
下面为后台代码：
复制 保存namespace doHope
{
using System;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
/// <summary>
/// 配合存储过程分页自定义控件(Sql Server)
/// By Cherish58
/// </summary>
public class GetPagerForSql : System.Web.UI.UserControl
{
protected System.Web.UI.WebControls.Label Label1;
protected System.Web.UI.WebControls.Label Label9;
protected System.Web.UI.WebControls.Label lbl_PageCnt;
protected System.Web.UI.WebControls.Label Label6;
protected System.Web.UI.WebControls.LinkButton lkbLast;
protected System.Web.UI.WebControls.LinkButton lkbNext;
protected System.Web.UI.WebControls.LinkButton lkbPre;
protected System.Web.UI.WebControls.LinkButton lkbFirst;
protected System.Web.UI.WebControls.Label Label3;
protected System.Web.UI.WebControls.Label lbl_RecordCnt;
protected System.Web.UI.WebControls.Label Label2;
protected System.Web.UI.WebControls.Label Label4;
protected System.Web.UI.WebControls.Label Label5;
protected System.Web.UI.WebControls.Label Label7;
protected System.Web.UI.WebControls.Label Label8;
protected System.Web.UI.WebControls.TextBox txt_CurrentPage;
#region 全局变量
/// <summary>
/// 获得数据库连接字符
/// </summary>
protected string strconn = System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"].ToString();
/// <summary>
/// 初始登陆时是否绑定数据（是为true，否为false），默认为false
/// </summary>
public bool InitBindData = false;
#endregion
#region 属性
/// <summary>
/// 表名，必须赋初值
/// </summary>
public string TableName
{
get { return ViewState["TableName"].ToString(); }
set { ViewState["TableName"] = value; }
}
/// <summary>
/// 返回的列名，默认为全部
/// </summary>
public string RetColumns
{
get { return ViewState["RetColumns"].ToString(); }
set { ViewState["RetColumns"] = value; }
}
/// <summary>
/// 查询条件字符串，默认为空
/// </summary>
public string SqlWhere
{
get { return ViewState["SqlWhere"].ToString(); }
set { ViewState["SqlWhere"] = value; }
}
/// <summary>
/// 排序字段，必须赋初值
/// </summary>
public string OrderField
{
get { return ViewState["OrderField"].ToString(); }
set { ViewState["OrderField"] = value; }
}
/// <summary>
/// 排序类型（升序为asc，降序为desc），默认为升序
/// </summary>
public string OrderType
{
get { return ViewState["OrderType"].ToString(); }
set { ViewState["OrderType"] = value; }
}
/// <summary>
/// 每页显示记录数，默认为10条
/// </summary>
public int PageSize
{
get { return int.Parse(ViewState["PageSize"].ToString()); }
set { ViewState["PageSize"] = value; }
}
/// <summary>
/// 初始显示为第几页，默认为第1页
/// </summary>
public int CurrentPage
{
get { return int.Parse(ViewState["CurrentPage"].ToString()); }
set { ViewState["CurrentPage"] = value; }
}
/// <summary>
/// 数据列表控件名称，必须赋初值
/// </summary>
public string DataControlName
{
get { return ViewState["DataControlName"].ToString(); }
set { ViewState["DataControlName"] = value; }
}
#endregion
#region Page_Load
private void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
{
if (this.InitBindData)
{
//默认显示为第几页
ViewState["CurrentPage"] = ViewState["CurrentPage"] == null || ViewState["CurrentPage"].ToString() == "" ? "1" : ViewState["CurrentPage"].ToString();
//每页显示记录总数
ViewState["PageSize"] = ViewState["PageSize"] == null || ViewState["PageSize"].ToString() == "" ? 10 : int.Parse(ViewState["PageSize"].ToString());
this.BindGridData();
}
}
}
#endregion
#region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器
/// 修改此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.lkbFirst.Command += new System.Web.UI.WebControls.CommandEventHandler(this.ChangePage);
this.lkbPre.Command += new System.Web.UI.WebControls.CommandEventHandler(this.ChangePage);
this.lkbNext.Command += new System.Web.UI.WebControls.CommandEventHandler(this.ChangePage);
this.lkbLast.Command += new System.Web.UI.WebControls.CommandEventHandler(this.ChangePage);
this.txt_CurrentPage.TextChanged += new System.EventHandler(this.txt_CurrentPage_TextChanged);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
#region 分页 ChangePage
private void ChangePage(object sender, System.Web.UI.WebControls.CommandEventArgs e)
{
int PageCount = this.GetPageCount();
int CurrentPage = int.Parse(ViewState["CurrentPage"].ToString());
string Change = e.CommandArgument.ToString();
if (Change == "Pre") //上一页
{
if (CurrentPage <= 1)
{
ViewState["CurrentPage"] = 1;
}
else
{
ViewState["CurrentPage"] = CurrentPage - 1;
}
}
else if (Change == "Next") //下一页
{
if (CurrentPage >= PageCount)
{
ViewState["CurrentPage"] = PageCount;
}
else
{
ViewState["CurrentPage"] = CurrentPage + 1;
}
}
else if (Change == "First") //首页
{
ViewState["CurrentPage"] = 1;
}
else //末页
{
ViewState["CurrentPage"] = PageCount;
}
//显示当前页
this.txt_CurrentPage.Text = ViewState["CurrentPage"].ToString();
this.ProData();
}
#endregion
#region 绑定数据
/// <summary>
/// 设置分页相关的参数
/// </summary>
private void BindGridData()
{
//记录总数
this.lbl_RecordCnt.Text = this.GetRecordCount().ToString();
//总页数
this.lbl_PageCnt.Text = this.GetPageCount().ToString();
if (this.lbl_PageCnt.Text != "0")
{
//当前页
this.txt_CurrentPage.Text = ViewState["CurrentPage"].ToString();
}
else
this.txt_CurrentPage.Text = "0";
//避免翻页后再查询出现列表没记录的情况
if (int.Parse(this.lbl_RecordCnt.Text) <= int.Parse(ViewState["PageSize"].ToString()))
{
ViewState["CurrentPage"] = 1;
this.txt_CurrentPage.Text = "1";
}
//绑定数据
this.ProData();
}
#endregion
#region 处理数据集
/// <summary>
/// 处理数据集
/// </summary>
/// <returns></returns>
private void ProData()
{
SqlConnection conn = new SqlConnection(strconn);
SqlCommand cmd = new SqlCommand("GetRecordFromPage", conn);
conn.Open();
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("@tblName", "" + ViewState["TableName"].ToString() + "");
string retcolumns = ViewState["RetColumns"] == null || ViewState["RetColumns"].ToString() == "" ? "*" : ViewState["RetColumns"].ToString();
cmd.Parameters.Add("@RetColumns", retcolumns);
string sqlwhere = ViewState["SqlWhere"] == null || ViewState["SqlWhere"].ToString() == "" ? "" : ViewState["SqlWhere"].ToString();
cmd.Parameters.Add("@strWhere", sqlwhere);
cmd.Parameters.Add("@Orderfld", "" + ViewState["OrderField"].ToString() + "");
cmd.Parameters.Add("@PageIndex", int.Parse(ViewState["CurrentPage"].ToString()));
cmd.Parameters.Add("@PageSize", "" + int.Parse(ViewState["PageSize"].ToString()) + "");
string ordertype = ViewState["OrderType"] == null || ViewState["OrderType"].ToString() == "" ? "asc" : ViewState["OrderType"].ToString();
cmd.Parameters.Add("@OrderType", ordertype);
SqlDataAdapter da = new SqlDataAdapter();
da.SelectCommand = cmd;
DataSet ds = new DataSet();
da.Fill(ds);
//找到父页面控件并绑定（这里只对DataGrid控件绑定）
DataGrid dg = (DataGrid) this.Page.FindControl("" + ViewState["DataControlName"].ToString() + "");
dg.DataSource = ds;
dg.DataBind();
da.Dispose();
cmd.Dispose();
conn.Close();
//控制分页按扭状态
this.StatsLinkButton();
}
#endregion
#region 控制分页按扭状态
private void StatsLinkButton()
{
int CurrentPage = int.Parse(ViewState["CurrentPage"].ToString());
int PageCount = this.GetPageCount();
if (PageCount > 0)
this.txt_CurrentPage.Enabled = true;
else
this.txt_CurrentPage.Enabled = false;
//若当前页为第一页
if (CurrentPage <= 1)
{
this.lkbFirst.Enabled = false;
this.lkbPre.Enabled = false;
}
else
{
this.lkbFirst.Enabled = true;
this.lkbPre.Enabled = true;
}
//若当前页为最后页
if (CurrentPage >= PageCount)
{
this.lkbLast.Enabled = false;
this.lkbNext.Enabled = false;
}
else
{
this.lkbLast.Enabled = true;
this.lkbNext.Enabled = true;
}
}
#endregion
#region 得到记录总数、总页数
//记录总数
private int GetRecordCount()
{
int RecordCount = 0;
string sql = "select count(*) from " + ViewState["TableName"].ToString() + " where 1=1";
if (ViewState["SqlWhere"] != null && ViewState["SqlWhere"].ToString() != "")
sql = sql + " and " + ViewState["SqlWhere"].ToString() + "";
SqlConnection conn = new SqlConnection(strconn);
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
RecordCount = int.Parse(cmd.ExecuteScalar().ToString());
cmd.Dispose();
conn.Close();
return RecordCount;
}
//总页数
private int GetPageCount()
{
int RecordCount = 0;
int YeShu = 0;
int psize = int.Parse(ViewState["PageSize"].ToString());
string sql = "select count(*) from " + ViewState["TableName"].ToString() + " where 1=1";
if (ViewState["SqlWhere"] != null && ViewState["SqlWhere"].ToString() != "")
sql = sql + " and " + ViewState["SqlWhere"].ToString() + "";
SqlConnection conn = new SqlConnection(strconn);
SqlCommand cmd = new SqlCommand(sql, conn);
conn.Open();
RecordCount = int.Parse(cmd.ExecuteScalar().ToString());
cmd.Dispose();
conn.Close();
YeShu = RecordCount % psize;
if (YeShu == 0)
{
return RecordCount / psize;
}
else
{
return RecordCount / psize + 1;
}
}
#endregion
#region 跳转
private void txt_CurrentPage_TextChanged(object sender, System.EventArgs e)
{
try
{
int num = Convert.ToInt32(this.txt_CurrentPage.Text);
if (num > this.GetPageCount())
{
Page.RegisterStartupScript("", "<script>alert('输入的页数已超出总页数，请重新输入！')</script>");
return;
}
ViewState["CurrentPage"] = num;
this.ProData();
}
catch (Exception ee)
{
Page.RegisterStartupScript("", "<script>alert('请输入正确的页数！')</script>");
return;
}
}
#endregion
#region 传值后再绑定，用于有条件查询（前台调用）
/// <summary>
/// 传值后再绑定，用于有条件查询
/// </summary>
public void GetDataByCond()
{
//默认显示为第1页
ViewState["CurrentPage"] = ViewState["CurrentPage"] == null || ViewState["CurrentPage"].ToString() == "" ? "1" : ViewState["CurrentPage"].ToString();
//每页显示记录总数
ViewState["PageSize"] = ViewState["PageSize"] == null || ViewState["PageSize"].ToString() == "" ? 10 : int.Parse(ViewState["PageSize"].ToString());
this.BindGridData();
}
#endregion
}
}