JQuery 构建客户/服务分离的链接模型中Table分页代码效率初探

复制代码 代码如下:

/// <summary>
/// 分页功能的表格填充服务端
/// </summary>
/// <param name="FlowID"></param>
/// <param name="PageCount">每页数目</param>
/// <param name="CurrentPage">当前页</param>
/// <returns></returns>
[WebMethod]
[ScriptMethod(ResponseFormat = ResponseFormat.Json)]
public string Load_ContributivePerson_Table(string FlowID, int PageCount, int CurrentPage)
{
List<TB_WEB_NZ_INVESTMENT> list = new List<TB_WEB_NZ_INVESTMENT>();

list = objBusinessFacade.GetTB_WEB_NZ_INVESTMENT_CollectionByFlowID(FlowID);
int TotalPageCount = 0;
if (PageCount != 0)
{
if ((list.Count % PageCount) > 0)
{
TotalPageCount = list.Count / PageCount + 1;
}
else
{
TotalPageCount = list.Count / PageCount;
}
}//if

if (CurrentPage == 1)
{
//第一页
if (PageCount < list.Count)
{
list.RemoveRange(PageCount, list.Count - PageCount);
}

}
else if (CurrentPage > 1 && CurrentPage < TotalPageCount)
{
//中间页

int R1 = (CurrentPage - 1) * PageCount-1;
int R2 = CurrentPage * PageCount;
List<TB_WEB_NZ_INVESTMENT> list1 = new List<TB_WEB_NZ_INVESTMENT>();
for (int i = 0; i < list.Count; i++)
{
if (i > R1&&i<R2)
{
list1.Add(list[i]);
}
}
list.Clear();
list = list1;
}
else if (CurrentPage == TotalPageCount)
{
//尾页
//但返回的显示对象列表确只能是最后一页里面的记录
//这里需要剔除不是最后一页的元素对象
list.RemoveRange(0,(CurrentPage-1) * PageCount);
}

return new JavaScriptSerializer().Serialize(list);
}

复制代码 代码如下:

List<TB_WEB_NZ_INVESTMENT> list1 = new List<TB_WEB_NZ_INVESTMENT>();
for (int i = 0; i < list.Count; i++)
{
if (i > R1&&i<R2)
{
list1.Add(list[i]);
}
}
list.Clear();
list = list1;

复制代码 代码如下:

<table id="TData" width="100%" >
<thead id="thead">
<tr id="TR_Header" class="MyTableTR_Header" align="center" style=" height:25px">
<td style="width:1%; display:none" class="MyTableTD"></td>
<td style="width:10%" >投资人类型</td>
<td style="width:10%">投资人</td>
<td style="width:10%">出资方式</td>
<td style="width:10%">认缴出资额</td>
<td style="width:10%">实缴出资额</td>
<td style="width:10%">出资比例</td>
<td style="width:15%">余额缴付期限</td>
<td style="width:15%">资料是否完整</td>
<td style="width:10%">操作</td>
</tr>
</thead>
<tbody id="tbody_Data"></tbody>
<tfoot id="tfoot_foot">
<tr align="right">
<td style="width:100%" colspan="9">
<a href="#" id="First_A">首页</a>
<a href="#" id="Prev_A">上一页</a>
<a href="#" id="Next_A">下一页</a>
<a href="#" id="Last_A">尾页</a>
跳到<input id="ToPageNo" type="text" style="width:20px; height:10px; font-size:9px"/>页 |
总页数:<span id="showTotalPage" style="color:Red"></span>页
</td>
</tr>
</tfoot>
</table>

复制代码 代码如下:

//引导数据填充表格(Table)
function Load_TableData(FlowID,CurrentPage)
{
$.ajax({
type: "POST",
url: IPServer +"JsonService.asmx/Load_ContributivePerson_Table",
data:"{FlowID:'"+FlowID+"',PageCount:"+PageCount+",CurrentPage:" + CurrentPage +"}" ,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(msg){
msg = msg.replace(new RegExp('(^|[^\\\\])\\"\\\\/Date\\((-?[0-9]+)\\)\\\\/\\"', 'g'), "$1new Date($2)");
var data = eval("(" + msg + ")");
var strTR="";
var RowCount = 1;
jQuery.each(data, function(rec) {
strTR += "<TR id='TR_" + RowCount + "' class='MyTableTR' align='center' >";
strTR += " <TD style='width:1%; display:none' id='Key_"+RowCount+"' class='MyTableTD' >" + this.INVID + "</TD>";
strTR += " <TD style='width:10%' class='MyTableTD' >" + this.INVTYPEName + "</TD>";
strTR += " <TD style='width:10%' class='MyTableTD' >" + this.INV + "</TD>";
strTR += " <TD style='width:10%' class='MyTableTD' >" + this.CONFORM + "</TD>";
strTR += " <TD style='width:10%' class='MyTableTD' >" + this.SUBCONAM + "</TD>";
strTR += " <TD style='width:10%' class='MyTableTD' >" + this.ACCONAM + "</TD>";
strTR += " <TD style='width:10%' class='MyTableTD' >" + this.CONPROP + "</TD>";
strTR += " <TD style='width:15%' class='MyTableTD' >" + this.BALDEPER_ShortString + "</TD>";
strTR += " <TD style='width:15%' class='MyTableTD' >" + this.IsDataCompleteness + "</TD>";
strTR += " <TD style='width:10%' class='MyTableTD' ><a id='Link_"+RowCount+"' href='#' >选择</a></TD>";
strTR += "</TR>";
RowCount++;
});//jQuery.each
$("#tbody_Data").empty();
$("#tbody_Data").append(strTR);
$("#CurrentPage").html(CurrentPage);
},
error:function(msg){
alert( "Error: " + msg );
}
});
}//function Load_TableData()

复制代码 代码如下:

$("#CurrentPage").html()　　　　　　存储当前页　　（调用代码在上个函数红色处）
$("#TotalPageCount").html()　　　　存储总页数　　（调用代码有个专门的函数，见下面）

复制代码 代码如下:

$("#First_A").click(function(){//首页 链接操作
Load_TableData(strFlowID,1);
});
$("#Prev_A").click(function(){//上一页 链接操作
var intCurrentPage = Number(c);
if(intCurrentPage>1)
{
Load_TableData(strFlowID,intCurrentPage-1);
}
});
$("#Next_A").click(function(){//下一页 链接操作
var intCurrentPage = Number($("#CurrentPage").html());
var intTotalPageCount = Number($("#TotalPageCount").html());
if(intCurrentPage<intTotalPageCount)
{
Load_TableData(strFlowID,intCurrentPage+1);
}
});
$("#Last_A").click(function(){//尾页 链接操作
intLastPage = Number($("#TotalPageCount").html());
Load_TableData(strFlowID,intLastPage);
});

复制代码 代码如下:

//返回页数
function Get_TableData_TotalCount(FlowID)
{
$.ajax({
type: "POST",
url: IPServer +"JsonService.asmx/Get_ContributivePersonTable_TotalPageCount",
data:"{FlowID:'"+FlowID +"',PageCount:"+PageCount+"}" ,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(msg){
var data = eval("(" + msg + ")");
jQuery.each(data, function(rec) {
$("#TotalPageCount").html(this.Info);
$("#showTotalPage").html(this.Info);
});//jQuery.each
},
error:function(msg){
alert( "Error: " + msg );
}
});
}
<div id="CurrentPage" ></div>
<div id="TotalPageCount" ></div>