ASP分页类(支持多风格变换)

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'******************************
'名称：分页类
'日期：2005/12/3
'作者：西楼冷月
'网址：www.xilou.net | www.chinaCMS.org
'描述：无
'版权：转载请注名出处，作者
'******************************
Class Page
Private CurrPage
Private PageN
Private UrlStr
Private TempStr
Private ErrInfo
Private IsErr
Private TotalRecord
Private TotalPage
Public PageRs
Private TempA(11)
Private TempB(8)
'------------------------------------------------------------
Private Sub Class_Initialize()
CurrPage=1'//默认显示当前页为第一页
PageN=10'//默认每页显示10条数据
UrlStr="#"
TempStr=""
ErrInfo="ErrInfo:"
IsErr=False
End Sub
Private Sub Class_Terminate()
If IsObject(PageRs) Then
PageRs.Close
Set PageRs=Nothing
End If
Erase TempA
Erase TempB
End Sub
'----------------------------------------------------------
'//获取当前页码
Public Property Let CurrentPage(Val)
CurrPage=Val
End Property
Public Property Get CurrentPage()
CurrentPage=CurrPage
End Property
'//获取每页显示条数
Public Property Let PageNum(Val)
PageN=Val
End Property
Public Property Get PageNum()
PageNum=PageN
End Property
'//获取URL
Public Property Let Url(Val)
UrlStr=Val
End Property
Public Property Get Url()
Url=UrlStr
End Property
'//获取模板
Public Property Let Temp(Val)
TempStr=Val
End Property
Public Property Get Temp()
Temp=TempStr
End Property
'------------------------------------------------------------
Public Sub Exec(Sql,ConnObj)
On Error Resume Next
Set PageRs=Server.CreateObject("ADODB.RecordSet")
PageRs.CursorLocation = 3 '使用客户端游标，可以使效率提高
PageRs.PageSize = PageN '定义分页记录集每页显示记录数
PageRs.Open Sql,ConnObj,0,1
If Err.Number<>0 Then
Err.Clear
PageRs.Close
Set PageRs=Nothing
ErrInfo=ErrInfo&"建立或打开记录集错误..."
IsErr=True
Response.Write ErrInfo
Response.End
End If
TotalRecord=PageRs.RecordCount'//如果为0呢？
If TotalRecord>=1 Then
'----------------------------------------------------------------------------开始
'//计算总页数,Ps,为什么不用PageRs.PageCount呢？
'If TotalRecord Mod PageN=0 Then
'TotalPage=PageRs.RecordCount\PageN
'Else
'TotalPage=PageRs.RecordCount\PageN
'TotalPage=Abs(Int(TotalPage))
'End If
TotalPage=PageRs.PageCount
'//处理当前接收页码,默认的为1，所以不是数字类型的都会为1
If IsNumeric(CurrPage) Then
CurrPage=CLNg(CurrPage)
If CurrPage<1 Then CurrPage=1
If CurrPage>TotalPage Then CurrPage=TotalPage
Else
'//Dim M:M="":IsNumeric(M)=True
CurrPage=1
End If
'---------------------------------------------------------------------------结束
Else
TotalPage=0
CurrPage=1
End If
'//
PageRs.AbsolutePage = CurrPage 'absolutepage：设置指针指向某页开头
PageRs.PageSize=PageN
End Sub
Private Sub Init()
'Private TempA(10)
TempA(1)="{N1}" '//首页
TempA(2)="{N2}"'//上一页
TempA(3)="{N3}"'//下一页
TempA(4)="{N4}"'//尾页
TempA(5)="{N5}"'//当前页码
TempA(6)="{N6}"'//页码总数
TempA(7)="{N7}"'//每页条数
TempA(8)="{N8}"'//文章总数
TempA(9)="{L}"'//循环标签开始
TempA(10)="{N}"'//循环内单标签：页码
TempA(11)="{L/}"'//循环标签结束
'Private TempB(8)
TempB(1)="首页"
TempB(2)="上一页"
TempB(3)="下一页"
TempB(4)="尾页"
TempB(5)=CurrPage'//当前页码
TempB(6)=TotalPage'//页码总数
TempB(7)=PageN'//每页条数
TempB(8)=TotalRecord'//文章总数
End Sub
Public Sub Show(Style)
If IsErr=True Then
Response.Write ErrInfo
Exit Sub
End If
Call Init()
Select Case Style
Case 1
Response.Write StyleA()
Case 2
Response.Write StyleB()
Case 3
Response.Write StyleC()
Case 4
Response.Write StyleD()
Case Else
ErrInfo=ErrInfo&"不存在当前样式..."
Response.Write ErrInfo
End Select
End Sub
Public Function ShowStyle(Style)
If IsErr=True Then
Show不存在当前样式..."
Show首页 上一页 下一页 尾页 本页为第1/20页，共20页，每页10条，文章总数200条
'//分页样例：[首页] [上页] [下页] [尾页] [页次：4/5页] [共86篇 20篇/页] 转到：_ 页
'//标签：{N1} {N2} {N3} {N4} || 共:{N8}条记录 {N6}页 当前为第{N5}页 每页{N7}条
If IsEmpty(TempStr) Then
ErrInfo=ErrInfo&"模板为空..."
StyleB=ErrInfo
Exit Function
End If
Dim M
If TotalPage>1 Then
If CurrPage>1 Then
M=""&"首页"&""
TempStr=Replace(TempStr,"{N1}",M)
M=""&"上一页"&""
TempStr=Replace(TempStr,"{N2}",M)
If CurrPageM=""&"下一页"&""
TempStr=Replace(TempStr,"{N3}",M)
M=""&"尾页"&""
TempStr=Replace(TempStr,"{N4}",M)
Else
TempStr=Replace(TempStr,"{N3}","下一页")
TempStr=Replace(TempStr,"{N4}","尾页")
End If
Else
TempStr=Replace(TempStr,"{N1}","首页")
TempStr=Replace(TempStr,"{N2}","上一页")
M=""&"下一页"&""
TempStr=Replace(TempStr,"{N3}",M)
M=""&"尾页"&""
TempStr=Replace(TempStr,"{N4}",M)
End If
Else
TempStr=Replace(TempStr,"{N1}","首页")
TempStr=Replace(TempStr,"{N2}","上一页")
TempStr=Replace(TempStr,"{N3}","下一页")
TempStr=Replace(TempStr,"{N4}","尾页")
End If
T=TempStr
T=Replace(T,"{N8}",TotalRecord)
T=Replace(T,"{N6}",TotalPage)
T=Replace(T,"{N5}",CurrPage)
T=Replace(T,"{N7}",PageN)
TempStr=T
StyleA=TempStr
End Function
Private Function StyleB()
'首页 |<1 2 3 4 5 6 7 >| 尾页
'//标签:{N1} {N2} {L}{N}{L/}{N3}{N4}
If IsEmpty(TempStr) Then
ErrInfo=ErrInfo&"模板为空..."
StyleB=ErrInfo
Exit Function
End If
Dim ForceNum,BackNum'//当前页的前面和后面显示个数
ForceNum=5
BackNum=4
Dim M
'//首页
M=""&TempB(1)&""
TempStr=Replace(TempStr,"{N1}",M)
'//尾页
M=""&TempB(4)&""
TempStr=Replace(TempStr,"{N4}",M)
'//前一页
M="|<"
If CurrPage-1>=1 Then
M=""&"|<"&""
End If
TempStr=Replace(TempStr,"{N2}",M)
'//后一页
M=">|"
If CurrPage+1<=TotalPage Then
M=""&">|"&""
End If
TempStr=Replace(TempStr,"{N3}",M)
'//取出循环标签
Dim N1,N2,N3,N4,N5,N6
If InStr(TempStr,"{L}")>0 Then
N1=InStr(TempStr,"{L}")
End If
If InStr(TempStr,"{L/}")>0 Then
N2=InStr(TempStr,"{L/}")
End If
If N2<=N1 Then
ErrInfo=ErrInfo&"循环标签出错..."
StyleB=ErrInfo
Exit Function
End If
N3=Mid(TempStr,N1,N2-N1+4)'//储存包括{L}{L/}循环标签的模板
N4=Replace(N3,"{L}","")'//储存不包括{L}{L/}循环标签的模板
N4=Replace(N4,"{L/}","")
'//页码列表
Dim FirstPageNum,LastPageNum
If CurrPage-ForceNum<=1 Then
FirstPageNum=1
PageList=""
Else
FirstPageNum=CurrPage-ForceNum
PageList="... ..."
End If
If CurrPage+BackNum>=TotalPage Then
LastPageNum=TotalPage
PageList_2=""
Else
LastPageNum=CurrPage+BackNum
PageList_2="... ..."
End If
Dim I
For I=FirstPageNum To LastPageNum
If I=CurrPage Then
N5=Replace(N4,"{N}",""&I&"")
N6=N6&N5
Else
M=""&I&""
N5=Replace(N4,"{N}",M)
N6=N6&N5
End If
Next
TempStr=Replace(TempStr,N3,N6)
StyleB=TempStr
End Function
Private Function StyleC()
'首页 |<|<<1 2 3 4 5 6 7 >>| >| 尾页
'//此风格在StyleB的基础上修改，增加两个标签：{N9}上10页 {N10}下10页
'//标签:{N1}{N2}{N9}{L}{N}{L/}{N10}{N3}{N4}
Dim T
T=StyleB()
'//前十页
M="|<<"
If CurrPage-10>=1 Then
M=""&"|<<"&""
End If
T=Replace(T,"{N9}",M)
M=">>|"
If CurrPage+10<=TotalPage Then
M=""&">>|"&""
End If
T=Replace(T,"{N10}",M)
StyleC=T
End Function
Private Function StyleD()
'//此风格在StyleC的基础上修改
'//共{N8}条记录 {N6}页 当前为第{N5}页 每页{N7}条
'//首页 |<|<<1 2 3 4 5 6 7 >>| >| 尾页
'//标签:{N1}{N2}{N9}{L}{N}{L/}{N10}{N3}{N4}
Dim T
T=StyleC()
T=Replace(T,"{N8}",TotalRecord)
T=Replace(T,"{N6}",TotalPage)
T=Replace(T,"{N5}",CurrPage)
T=Replace(T,"{N7}",PageN)
StyleD=T
End Function
End Class
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