Ajax+Asp源代碼]讀取數(shù)據(jù)庫內容的表格(沒有用框架)第1/2頁

'下面這個Sub 是延遲用于調試ajax的loading
% 
Sub TimeDelaySeconds(DelaySeconds) 
SecCount = 0 
Sec2 = 0 
While SecCount  DelaySeconds + 1 
Sec1 = Second(Time()) 
If Sec1 > Sec2 Then 
Sec2 = Second(Time()) 
SecCount = SecCount + 1 
End If 
Wend 
End Sub 
TimeDelaySeconds(0)
%> 

%
Response.Expires = -9999 
Response.AddHeader "Pragma","no-cache"
Response.AddHeader "cache-ctrol","no-cache"
Response.Charset = "GB2312"

Set conn = Server.CreateObject("ADODB.Connection")
connstr="Provider=Microsoft.Jet.OLEDB.4.0;Data Source="  Server.MapPath("Database.mdb")
conn.Open connstr
%>

%
set rs = server.createobject("adodb.recordset")
Sqlstr = "select * from UserData order by id"
rs.open Sqlstr,conn,1,1
rs.PageSize = 3
AllPage = rs.PageCount

Page = request.QueryString ("page")

'***********************判斷
if cint(page) = 1 then
Page = 1
elseif cint(page) >= rs.PageCount then
Page = rs.PageCount
else
intpage = cint(page)
end if
'***************************

rs.AbsolutePage=page

Response.write AllPage","rs.AbsolutePage","

for i = 1 to rs.PageSize
if rs.EOF or rs.BOF then exit for
Response.write rs(0)","rs(1)","rs(2)","rs(3)","
rs.movenext
next

rs.close
Set rs = nothing
%>

var request = false;
//------------------判斷瀏覽器并建立對象----------------------------------------------------------------
try {                                                                    //嘗試創(chuàng)建 XMLHttpRequest 對象
    request = new XMLHttpRequest();                                         //---此對象將兼容除IE外大部分瀏覽器!
}                                                                         //-
catch (trymicrosoft) {                                                     //如果失敗    catch (trymicrosoft)

try {                                                                     //嘗試使用較新版IE兼容的對象（Msxml2.XMLHTTP） 
    request = new ActiveXObject("Msxml2.XMLHTTP");                         //---此對象將兼容老版本IE
}                                                                          //-
catch (othermicrosoft) {                                                 //如果失敗    catch (othermicrosoft)

try {                                                                     //嘗試使用較老版IE兼容的對象（Microsoft.XMLHTTP）
    request = new ActiveXObject("Microsoft.XMLHTTP");                     //---此對象將兼容新版本IE
}                                                                          //-
catch (failed) {                                                         //如果失敗    catch (failed)
    request = false;                                                     //request = false
    alert("Object Error!");
    }
  }
}
defaultPages();
//-------------------------------------------------------------------------------------------------------------*/


//**********讀取數(shù)據(jù)***********************************************************

function defaultPages() {
    var url = "Demo.asp";
    request.open("GET", url, true);                                        //open方法 （"方式",url,是否異步）
    request.onreadystatechange = updatePage;                            //判斷服務器處理的結果
    request.send(null);                                                    //送出.
}

function selectPages(Method,Pages) {

    //先刪除以前的數(shù)據(jù)
    for(i=0;i3;i++)
    document.getElementById("MyTable").deleteRow();
    //----------------

    if (Method == "Previous"){
    var PageTemp = document.getElementById("PageNow").value;
    var PageNow = parseInt(PageTemp)-1;

    //alert (PageNow);//debug

    var url = "Demo.asp?Page="+PageNow;
    request.open("GET", url, true);    
    request.onreadystatechange = updatePage;
    request.send(null);
    }

    else if (Method == "Next"){
    var PageTemp = document.getElementById("PageNow").value;
    var PageNow = parseInt(PageTemp)+1;

    //alert (PageNow);//debug

    var url = "Demo.asp?Page="+PageNow;
    request.open("GET", url, true);    
    request.onreadystatechange = updatePage;
    request.send(null);
    }    
}

//***********服務器是否處理完成.**********************************************************************************

function updatePage() {
    if (request.readyState = 3){                                        //小于或等于狀態(tài)3----loading.
        document.getElementById("Status").innerHTML = "Loading...";    
        document.getElementById("Pages").innerHTML = "Previous│Next";
    }

    if (request.readyState == 4){                                        //狀態(tài)4----完成.
    if (request.status == 200) {                                         //如果http狀態(tài)為200--當成功獲取獲取數(shù)據(jù).
        requestAllright();
    }else{                                                            //如果http狀態(tài)為404--http報錯.
        document.getElementById("Status").innerHTML = "Error:" + request.status;
        document.getElementById("Pages").innerHTML = "Previous│Next";
    }
    }
}

//***********處理完成-生成數(shù)據(jù).**********************************************************************************

function requestAllright() {
    var getStr = request.responseText;
    var getValue = getStr.split(",");
    var PageCount = getValue[0];
    var PageNow = getValue[1];

    var Contact = [
    [getValue[2],getValue[3],getValue[4],getValue[5]],
    [getValue[6],getValue[7],getValue[8],getValue[9]],
    [getValue[10],getValue[11],getValue[12],getValue[13]]
    ];

    for (var List=0;ListContact.length;List++){
      var MyTr = MyTable.insertRow();                                         //創(chuàng)建Tr標簽                                             
      for (var Cell=0;CellContact[List].length;Cell++){                     //Td循環(huán)
      var MyTd = MyTr.insertCell();                                             //創(chuàng)建Td標簽
      MyTd.innerHTML = Contact[List][Cell];                                     //給Td標簽插入內容
        if (Cell == 0)                                                         //如果當前為每行的第一個Td                                 
        MyTd.id = "Number";                                                    //賦予其ID為Number
      }    
    }

//上一頁下一頁處的判斷,是否可以點擊******************************************************************************************
    if (PageNow == PageCount){
    document.getElementById("Pages").innerHTML = "a href=javascript:selectPages('Previous','0'); target=_self class=pagesTag>Previous/a>│Next"
    }
    else if (PageNow == 1){
    document.getElementById("Pages").innerHTML = "Previous│a href=javascript:selectPages('Next','0'); target=_self class=pagesTag>Next/a>"
    }
    else if (PageNow != 1 || PageNow != PageCount){
    document.getElementById("Pages").innerHTML = "a href=javascript:selectPages('Previous','0'); target=_self class=pagesTag>Previous/a>│a href=javascript:selectPages('Next','0'); target=_self class=pagesTag>Next/a>"
    }
//上一頁下一頁處的判斷,是否可以點擊******************************************************************************************

    document.getElementById("PageCount").value = PageCount;
    document.getElementById("PageNow").value = PageNow;
    document.getElementById("Status").innerHTML = "Done with!";

    //alert(PageCount);//debug
    //alert(PageNow);//debug

}