// JavaScript Document
/**//**
* js分页类
* @param iAbsolute 每页显示记录数
* @param sTableId 分页表格属性ID值，为String
* @param sTBodyId 分页表格TBODY的属性ID值,为String,此项为要分页的主体内容
* @Version 1.0.0
* @author 辛现宝 2007-01-15 created
* var __variable__; private
* function __method__(){};private
*/
function Page(iAbsolute,sTableId,sTBodyId)
...{
this.absolute = iAbsolute; //每页最大记录数
this.tableId = sTableId;
this.tBodyId = sTBodyId;
this.rowCount = 0;//记录数
this.pageCount = 0;//页数
this.pageIndex = 0;//页索引
this.__oTable__ = null;//表格引用
this.__oTBody__ = null;//要分页内容
this.__dataRows__ = 0;//记录行引用
this.__oldTBody__ = null;
this.__init__(); //初始化;
};
/**//*
初始化
*/
Page.prototype.__init__ = function()...{
this.__oTable__ = document.getElementById(this.tableId);//获取table引用
this.__oTBody__ = this.__oTable__.tBodies[this.tBodyId];//获取tBody引用
this.__dataRows__ = this.__oTBody__.rows;
this.rowCount = this.__dataRows__.length;
try...{
this.absolute = (this.absolute <= 0) || (this.absolute>this.rowCount) ? this.rowCount : this.absolute;
this.pageCount = parseInt(this.rowCount%this.absolute == 0
? this.rowCount/this.absolute : this.rowCount/this.absolute+1);
}catch(exception)...{}
this.__updateTableRows__();
};
/**//*
下一页
*/
Page.prototype.nextPage = function()...{
if(this.pageIndex + 1 < this.pageCount)...{
this.pageIndex += 1;
this.__updateTableRows__();
}
};
/**//*
上一页
*/
Page.prototype.prePage = function()...{
if(this.pageIndex >= 1)...{
this.pageIndex -= 1;
this.__updateTableRows__();
}
};
/**//*
首页
*/
Page.prototype.firstPage = function()...{
if(this.pageIndex != 0)...{
this.pageIndex = 0;
this.__updateTableRows__();
}
};
/**//*
尾页
*/
Page.prototype.lastPage = function()...{
if(this.pageIndex+1 != this.pageCount)...{
this.pageIndex = this.pageCount - 1;
this.__updateTableRows__();
}
};
/**//*
页定位方法
*/
Page.prototype.aimPage = function(iPageIndex)...{
if(iPageIndex > this.pageCount-1)...{
this.pageIndex = this.pageCount - 1;
}else if(iPageIndex < 0)...{
this.pageIndex = 0;
}else...{
this.pageIndex = iPageIndex;
}
this.__updateTableRows__();
};
/**//*
执行分页时，更新显示表格内容
*/
Page.prototype.__updateTableRows__ = function()...{
var iCurrentRowCount = this.absolute * this.pageIndex;
var iMoreRow = this.absolute+iCurrentRowCount > this.rowCount ? this.absolute+iCurrentRowCount - this.rowCount : 0;
var tempRows = this.__cloneRows__();
//alert(tempRows === this.dataRows);
//alert(this.dataRows.length);
var removedTBody = this.__oTable__.removeChild(this.__oTBody__);
var newTBody = document.createElement("TBODY");
newTBody.setAttribute("id", this.tBodyId);
for(var i=iCurrentRowCount; i < this.absolute+iCurrentRowCount-iMoreRow; i++)...{
newTBody.appendChild(tempRows[i]);
}
this.__oTable__.appendChild(newTBody);
/**//*
this.dataRows为this.oTBody的一个引用，
移除this.oTBody那么this.dataRows引用将销失,
code:this.dataRows = tempRows;恢复原始操作行集合.
*/
this.__dataRows__ = tempRows;
this.__oTBody__ = newTBody;
//alert(this.dataRows.length);
//alert(this.absolute+iCurrentRowCount);
//alert("tempRows:"+tempRows.length);
};
/**//*
克隆原始操作行集合
*/
Page.prototype.__cloneRows__ = function()...{
var tempRows = [];
for(var i=0; i<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
无标题文档
Last Name
First Name
Birthday
Siblings
| Smith |
John |
7/12/1978 |
2 |
| Johnson |
Betty |
10/15/1977 |
4 |
| Henderson |
Nathan |
2/25/1949 |
1 |
| Williams |
James |
7/8/1980 |
4 |
| Gilliam |
Micheal |
7/22/1949 |
1 |
| Smith |
John |
7/12/1978 |
2 |
| Johnson |
Betty |
10/15/1977 |
4 |
| Henderson |
Nathan |
2/25/1949 |
1 |
| Williams |
James |
7/8/1980 |
4 |
| Gilliam |
Micheal |
7/22/1949 |
1 |
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