值提示默认值的设定

背景：

report studio中值提示的默认值没办法提供动态设置默认选项，但是在实际中有时候要能动态设置默认选项。所以只能借助于html来实现。

实现功能说明：

1）登陆后设置提示第一个有效值为默认值；2）实现自动提交

（模拟自动提交）；3）仅能选择一个有效提示值，即选择数据项名称和‘-------’无效。

实现方法：

1）在下值提示前后各加一个html项目，

内容分别为：<span id="spanidName">

与 </span>

　　　注意：span id内容根据实际设置。如附件图片“值提示”。

此例中，我共有3个值提示，其中电压等级与站是级联关系，电压等级层级高于站：

<span id='spanidYear'>年份提示</span>

<span id='spanidStation'>站提示</span>

<span id='spanidVoltage'>电压等级提示</span>

2）　添加一个完成按钮。（此按钮最终会被隐藏，代码控制其提交）

3）　将所有提示的自动提交取消！

4）

在页面加一个html项目，内容如下：

<script. language="javascript">

//全局变量

var spanYear;

var selectYear;

var selectIndexYear;

var spanStation;

var selectStation

var selectIndexStation;

var spanVoltage;

var selectVoltage;

var selectIndexVoltage;

//获取页面值提示对象

function getSpanInfo(){

spanYear = document.getElementById("spanidYear");//The same name as the span id.set for year prompt

selectYear = spanYear.getElementsByTagName("select");

selectIndexYear=selectYear[0].selectedIndex;

spanStation = document.getElementById("spanidStation");//The same name as the span id.set for station prompt

selectStation = spanStation.getElementsByTagName("select");

selectIndexStation=selectStation[0].selectedIndex;

spanVoltage = document.getElementById("spanidVoltage");//The same name as the span id.set for voltage prompt

selectVoltage = spanVoltage.getElementsByTagName("select");

selectIndexVoltage=selectVoltage[0].selectedIndex;

}

//初始化页面

function initOnLoad()

{

getSpanInfo();

if(selectIndexYear==0||selectIndexYear==1)

{ selectVoltage[0].selectedIndex=2;

selectYear[0].selectedIndex=2;

//selectStation[0].selectedIndex=2;

if(getFormWarpRequest().elements["cv.id"].value=="RS")

{

setTimeout('oCVRS.promptAction(\'finish\')',100); //延迟一定时间很重要，否则会报错

}else

setTimeout('oCV_NS_.promptAction(\'finish\')',100);

}

}

//年提示值变化（onchange事件）调用

function validateSelectYear()

{ getSpanInfo();

if (selectIndexYear==0 || selectIndexYear==1){

//no response

}

else

{

promptButtonFinish(); // Currently equivalent to oCV<namespace>.promptAction('finish')

}

}

//站提示值变化（onchange事件）调用

function validateSelectStation()

{ getSpanInfo();

if (selectIndexStation==0 || selectIndexStation==1){

//no response

}

else

{

if(selectIndexYear ==0 || selectIndexYear ==1){

selectYear[0].selectedIndex=2;

}

promptButtonFinish(); // Currently equivalent to oCV<namespace>.promptAction('finish')

}

}

//电压等级提示值变化（onchange事件）调用

function validateSelectVoltage()

{ getSpanInfo();

if (selectIndexVoltage==0 || selectIndexVoltage==1){

//no response

}

else

{

if(selectIndexYear ==0 || selectIndexYear ==1){

selectYear[0].selectedIndex=2;

}

if(selectIndexStation!=0 && selectIndexStation!=1){

selectStation[0].selectedIndex=0;

}

promptButtonFinish(); // Currently equivalent to oCV<namespace>.promptAction('finish')

}

}

//页面初始加载

document.forms[0].onload=initOnLoad();

var fW = (typeof getFormWarpRequest == "function" ?getFormWarpRequest() : document.forms["formWarpRequest"]);

if ( !fW || fW == undefined)

{

fW = ( formWarpRequest_THIS_ ?formWarpRequest_THIS_ : formWarpRequest_NS_ );

}

var buttons = fW.getElementsByTagName("BUTTON");

for (var i=0; i<buttons.length; i++)

{

if (buttons[i].id.indexOf('finish') == 0) // The finish button ID starts with finish. ie: id="finishN0D5D2148x0C6BEFD0_NS_"

{

if (buttons[i].onclick.toString().indexOf('finish') > 0) //oCV_NS_.promptAction('finish')

{

//buttons[i].onclick = ValidatePage;

buttons[i].style.display="none";

}

}

}

//设置onchange事件

getSpanInfo()

selectYear[0].onchange=validateSelectYear;

selectStation[0].onchange=validateSelectStation;

selectVoltage[0].onchange=validateSelectVoltage;