想來學習 .net 也2個月了吧，最初遇到的一個問題就是分頁程序獲取當前頁的數據并支持字段排序而且支持搜索時的 where 語句 在網上搜了

很久也沒找到，也在 asp.net 的一些論壇上發過帖子也許是那些高手懶得理我吧（做菜鳥就是難）也許是我找東西的能力有問題，但我卻找到了以下sql 的

存儲過程。

 set @page = (@page-1) * @pagesize + 1
 exec sp_cursoropen @p1 output, @strsql
 exec sp_cursorfetch @p1, 16, @page, @pagesize
 exec sp_cursorclose @p1

后來經過修改就成下面這樣了（后面有個調用的例子 vb.net 版本我只會vb 不知微軟何時出 masm.net 我想這輩子是沒希望了）

 /* 通用存儲過程分頁----- 江建 
 只讀取當前頁 支持分類排序
*/

create procedure getpage
(
 @strtablename nvarchar(50),    --表名
 @fldname nvarchar (200),       --要返回的字段    
 @strwhere nvarchar(200)="",    --where 語句 
 @fldorderby nvarchar(200),     --要排序的字段
 @ordertype int=0,          --排序類型升序還是降序  
 @page int = 1,    --要獲取的頁碼
 @pagesize int = 5   --頁大小
)
as
 set nocount on
 declare @p1 int
 declare @strsql  nvarchar(1000)
 declare @strorderby nvarchar(200)

 if @ordertype != 0
  set  @strorderby = ' order by [' + @fldorderby +'] desc'
 else

  set  @strorderby = ' order by [' + @fldorderby +'] asc'

 if @strwhere !=''
  set @strsql='select ' + @fldname + ' from [' + @strtablename + '] where ' + @strwhere + @strorderby
 else
  set @strsql='select ' + @fldname + ' from [' + @strtablename + ']'  + @strorderby
 

 set @page = (@page-1) * @pagesize + 1
 exec sp_cursoropen @p1 output, @strsql
 exec sp_cursorfetch @p1, 16, @page, @pagesize
 exec sp_cursorclose @p1
 go

/*這個是獲取記錄總數----- 江建*/
create procedure countrow
(
 @strtablename nvarchar(50),
 @fldnamecount nvarchar(50),
 @strwhere nvarchar(200)=""
)
as
 declare @strsql  nvarchar(1000)
 if @strwhere !=''
  set @strsql='select count([' + @fldnamecount + ']) as countrow from [' + @strtablename + '] where ' +

@strwhere
 else
  set @strsql='select count([' + @fldnamecount + ']) as countrow from [' + @strtablename + ']'
 
exec sp_executesql  @strsql
go

（1）下面是類模塊 datapager.vb
'=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
'   data pager
'   programme by jiang jian
'   date:2005-06-23
'   corpright(c) 2005 jiang jian.
'=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
'   http://vbcc.126.com
'   email:[email protected]
'   this is class for sql database pager
'=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
imports system
imports system.web.ui
imports system.web.ui.webcontrols
imports system.data
imports system.data.sqlclient

namespace datalayer

    public class getdata
        inherits webcontrol
        private myconn as new sqlconnection
        private introwcount as integer
        private strtablename as string
        private strfldnamecount as string
        private strfldname as string
        private intpagesize as integer
        private strwhere as string
        private strfldorderby as string

        public function connectiondatabase()
            dim strconn as string
            if not (myconn.state) then
                myconn.connectionstring = "server=(local);database=northwind;uid=sa"
                myconn.open()
            end if
        end function

        'set or get tablename
        public property tablename() as string
            get
                return strtablename
            end get
            set(byval value as string)
                strtablename = value
            end set
        end property

        'set or get count(xxxx)
        public property fldnamecount() as string
            get
                return strfldnamecount
            end get
            set(byval value as string)
                strfldnamecount = value
            end set
        end property

        'set or get (xxxx) from
        public property fldname() as string
            get
                return strfldname
            end get
            set(byval value as string)
                strfldname = value
            end set
        end property

        'set or get pagesize
        public property pagesize() as integer
            get
                return intpagesize
            end get
            set(byval value as integer)
                intpagesize = value
            end set
        end property
         'set or get sql where
        public property where() as string
            get
                return strwhere
            end get
            set(byval value as string)
                strwhere = value
            end set
        end property

        'set or get sql orderby
        public property fldorderby() as string
            get
                return strfldorderby
            end get
            set(byval value as string)
                strfldorderby = value
            end set
        end property

        public function getpagecount() as integer
            call connectiondatabase()

            dim rountcommand as sqldataadapter
            rountcommand = new sqldataadapter("countrow", myconn)
            rountcommand.selectcommand.commandtype = commandtype.storedprocedure

            rountcommand.selectcommand.parameters.add(new sqlparameter("@strtablename", sqldbtype.nvarchar, 50))
            rountcommand.selectcommand.parameters("@strtablename").value = strtablename

            rountcommand.selectcommand.parameters.add(new sqlparameter("@fldnamecount", sqldbtype.nvarchar, 50))
            rountcommand.selectcommand.parameters("@fldnamecount").value = strfldnamecount

            dim intcount as integer = rountcommand.selectcommand.executescalar()
            myconn.close()
            if (intcount mod intpagesize) > 0 then
                return (intcount / intpagesize) + 1
            else
                return (intcount / intpagesize)
            end if
        end function

        public function gotopage(optional byval intpage as integer = 1) as dataview
            call connectiondatabase()

            dim mycommand as sqldataadapter
            mycommand = new sqldataadapter("getpage", myconn)
            mycommand.selectcommand.commandtype = commandtype.storedprocedure

            mycommand.selectcommand.parameters.add(new sqlparameter("@strtablename", sqldbtype.nvarchar, 50))
            mycommand.selectcommand.parameters("@strtablename").value = strtablename

            mycommand.selectcommand.parameters.add(new sqlparameter("@fldname", sqldbtype.nvarchar, 200))
            mycommand.selectcommand.parameters("@fldname").value = strfldname

            mycommand.selectcommand.parameters.add(new sqlparameter("@strwhere", sqldbtype.nvarchar, 200))
            mycommand.selectcommand.parameters("@strwhere").value = strwhere

            mycommand.selectcommand.parameters.add(new sqlparameter("@fldorderby", sqldbtype.nvarchar, 200))
            mycommand.selectcommand.parameters("@fldorderby").value = strfldorderby

            mycommand.selectcommand.parameters.add(new sqlparameter("@page", sqldbtype.int))
            mycommand.selectcommand.parameters("@page").value = intpage

            mycommand.selectcommand.parameters.add(new sqlparameter("@pagesize", sqldbtype.int))
            mycommand.selectcommand.parameters("@pagesize").value = intpagesize

            dim ds as new dataset
            mycommand.fill(ds, "@employees")

            return ds.tables("@employees1").defaultview
            myconn.close()
        end function
    end class
end namespace

（2）下面是webform1.aspx 的codebehind
imports bbs.datalayer
imports system
imports system.web
imports system.data
imports system.data.sqlclient

public class webform1
    inherits system.web.ui.page
    private clsgetdata as new getdata

#region " web 窗體設計器生成的代碼 "

    '該調用是 web 窗體設計器所必需的。
    <system.diagnostics.debuggerstepthrough()> private sub initializecomponent()

    end sub
    protected withevents linkbutton1 as system.web.ui.webcontrols.linkbutton
    protected withevents datagrid1 as system.web.ui.webcontrols.datagrid
    protected withevents textbox1 as system.web.ui.webcontrols.textbox
    protected withevents button1 as system.web.ui.webcontrols.button
    protected withevents lnknext as system.web.ui.webcontrols.linkbutton
    protected withevents lnkprve as system.web.ui.webcontrols.linkbutton
    protected withevents label1 as system.web.ui.webcontrols.label
    protected withevents label2 as system.web.ui.webcontrols.label
    protected withevents label3 as system.web.ui.webcontrols.label

    '注意: 以下占位符聲明是 web 窗體設計器所必需的。
    '不要刪除或移動它。
    private designerplaceholderdeclaration as system.object

    private sub page_init(byval sender as system.object, byval e as system.eventargs) handles mybase.init
        'codegen: 此方法調用是 web 窗體設計器所必需的
        '不要使用代碼編輯器修改它。
        initializecomponent()
    end sub

#end region

    private sub page_load(byval sender as system.object, byval e as system.eventargs) handles mybase.load
        if not ispostback then
            gridbind()
        end if
    end sub

    private sub gridbind()
        clsgetdata.tablename = "products"               '表名
        clsgetdata.fldnamecount = "productid"           '獲取記錄總數時所用到的字段
        clsgetdata.fldname = "productid,productname"    '要返回的字段
        clsgetdata.pagesize = 10                        '每頁的大小
        if clsgetdata.fldorderby = "" then              '排序的字段
            clsgetdata.fldorderby = "productid"
        end if

        if pagecount = 0 then
            pagecount = clsgetdata.getpagecount()
        end if

        if curpage = pagecount then
            lnknext.enabled = false
        else
            lnknext.enabled = true
        end if

        if curpage > 1 then
            lnkprve.enabled = true
        else
            lnkprve.enabled = false
        end if
        label3.text = "共 " & pagecount & " 頁 當前第 " & curpage & " 頁"
        datagrid1.datasource = clsgetdata.gotopage(curpage)
        datagrid1.databind()
    end sub

    private sub button1_click(byval sender as system.object, byval e as system.eventargs) handles button1.click
        if cint(textbox1.text) > pagecount then
            curpage = pagecount
            textbox1.text = curpage
        else
            curpage = convert.toint32(textbox1.text)
        end if
        gridbind()
    end sub

    private sub lnknext_click(byval sender as system.object, byval e as system.eventargs) handles lnknext.click
        if curpage < pagecount then
            curpage += 1
            gridbind()
        end if
    end sub

    private sub lnkprve_click(byval sender as object, byval e as system.eventargs) handles lnkprve.click
        if curpage > 1 then
            curpage -= 1
            gridbind()
        end if
    end sub

    public property pagecount() as integer
        get
            return viewstate("pagecount")
        end get

        set(byval value as integer)
            viewstate("pagecount") = value
        end set
    end property

    public property curpage() as integer
        get
            if viewstate("curpage") = 0 then
                viewstate("curpage") = 1
            end if
            return viewstate("curpage")
        end get

        set(byval value as integer)
            viewstate("curpage") = value
        end set
    end property

    private sub datagrid1_sortcommand(byval source as object, byval e as

system.web.ui.webcontrols.datagridsortcommandeventargs) handles datagrid1.sortcommand
        clsgetdata.fldorderby = e.sortexpression
        gridbind()
    end sub
end class

（3）下面是webform1.aspx 代碼
<%@ page language="vb" autoeventwireup="false" codebehind="webform1.aspx.vb" inherits="bbs.webform1"%>
<html>
<head>
<title>webform1</title>
<meta name=vs_snaptogrid content="false">
<meta name=vs_showgrid content="false">
<meta content="microsoft visual studio .net 7.1" name=generator>
<meta content="visual basic .net 7.1" name=code_language>
<meta content=javascript name=vs_defaultclientscript>
<meta content=http://schemas.microsoft.com/intellisense/ie5 name=vs_targetschema>
</head>
<body ms_positioning="gridlayout">
<form id="form1" method="post" runat="server">
<asp:datagrid id=datagrid1 runat="server"

autogeneratecolumns="false" width="392px" height="184px" allowsorting="true">
<columns>
<asp:boundcolumn datafield="productid" sortexpression="productid" headertext="productid"></asp:boundcolumn>
<asp:boundcolumn datafield="productname" sortexpression="productname" headertext="productname"></asp:boundcolumn>
</columns>
</asp:datagrid><asp:label id="label2" runat="server">頁

</asp:label><asp:linkbutton id="lnkprve"

runat="server">prvepage</asp:linkbutton><asp:linkbutton id="lnknext" runat="server">nextpage</asp:linkbutton>
<asp:textbox id="textbox1" runat="server"

width="57px"></asp:textbox>
<asp:button id="button1" runat="server" width="40px"

text="go" height="24px">
</asp:button><asp:label id="label1" runat="server"

height="16px" width="70px">轉到第</asp:label><asp:label id="label3" runat="server" height="18px" width="317px">xxxxx</asp:label>
</form>
</body>
</html>