下拉框假联动

最新推荐文章于 2020-01-17 15:37:07 发布

原创最新推荐文章于 2020-01-17 15:37:07 发布 · 215 阅读

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CC 4.0 BY-SA版权

本文详细介绍了如何使用JavaScript实现下拉框之间的联动功能，包括文本与下拉框联动、下拉框与下拉框联动及移动开发场景中的联动应用。

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申请呼叫项目：

<select:select property="option" styleClass="IptStyle" style="width:130" onchange="selectLinkOnchange('option','value','optionSub','value1');">

<select:option value="-1">--请选择--</select:option>

<select:options collection="option1List" property="id" labelProperty="name" value1="value1"/>

</select:select>

<select:select property="optionSub" styleClass="IptStyle" style="width:120">

<select:option value="-1">--请选择--</select:option>

<select:options collection="option2List" property="id" labelProperty="name" value1="value1"/>

</select:select>

</td>

js源代码：

//下拉框与下拉框联动

function selectLinkOnchange(masterObjStr,masterField,detailObjStr,detailField) {

var masterObj = document.getElementById(masterObjStr);

var detailObj = document.getElementById(detailObjStr);

if(detailObj=="[object]"&&masterObj=="[object]"){

if(typeof(detailObj.OUTERHTML) == "undefined"){

detailObj.OUTERHTML = detailObj.outerHTML;

}

var str= detailObj.OUTERHTML

detailObj.outerHTML = str;

detailObj = document.getElementById(detailObjStr);

if(typeof(detailObj.OUTERHTML)=="undefined"){

detailObj.OUTERHTML = detailObj.outerHTML;

}

if(masterObj.selectedIndex < 0 || masterObj.options[masterObj.selectedIndex].getAttribute(masterField)==''){//选中全部则显示所有的

return ;

}

var masterValue = parseInt(masterObj.options[masterObj.selectedIndex].getAttribute(masterField));

if (masterValue < 0) {

return ;

}

for(var i=0;i<detailObj.options.length;i++){

var detailValue = parseInt(detailObj.options[i].getAttribute(detailField));

/*if(detailValue == 1){

detailValue = 3A;

}

if(detailValue == 0){

detailValue = 3B;

}*/

if((masterValue != detailValue) && isNaN(detailObj.options[i].value)) {

detailObj.remove(i);

i--;

}

else if((masterValue != detailValue) && parseInt(detailObj.options[i].value) >= 0) {

detailObj.remove(i);

i--;

}

return;

}

//文本与下拉框联动

function textLinkOnchange(masterObjStr,detailObjStr,detailField) {

var masterObj = document.getElementById(masterObjStr);

var detailObj = document.getElementById(detailObjStr);

if(detailObj=="[object]"&&masterObj=="[object]"){

if(typeof(detailObj.OUTERHTML) == "undefined"){

detailObj.OUTERHTML = detailObj.outerHTML;

}

var str= detailObj.OUTERHTML

detailObj.outerHTML = str;

detailObj = document.getElementById(detailObjStr);

if(typeof(detailObj.OUTERHTML)=="undefined"){

detailObj.OUTERHTML = detailObj.outerHTML;

}

if(masterObj.value == "" ){//选中全部则显示所有的

return ;

}

var masterValue = parseInt(masterObj.value);

if (masterValue <= 0 || isNaN(masterValue)) {

return ;

}

for(var i=0;i<detailObj.options.length;i++){

var detailValue = parseInt(detailObj.options[i].getAttribute(detailField));

if((masterValue != detailValue) && parseInt(detailObj.options[i].value) > 0) {

detailObj.remove(i);

i--;

}

return;

}

function MoveinoroutLinkDepart(masterObjStr,masterField,detailObjStr,detailField){

var masterObj = document.getElementById(masterObjStr);

var detailObj = document.getElementById(detailObjStr);

if(typeof(detailObj.OUTERHTML) == "undefined"){

detailObj.OUTERHTML = detailObj.outerHTML;

}

var str= detailObj.OUTERHTML

detailObj.outerHTML = str;

detailObj = document.getElementById(detailObjStr);

if(typeof(detailObj.OUTERHTML)=="undefined"){

detailObj.OUTERHTML = detailObj.outerHTML;

}

if(masterObj.selectedIndex < 0 ){//选中全部则显示所有的

return ;

}

var masterValue = masterObj.options[masterObj.selectedIndex].getAttribute(masterField);

if (masterValue == "3A") {

masterValue = parseInt(1);

}

if (masterValue == "3B") {

masterValue = parseInt(0);

}

for(var i=0;i<detailObj.options.length;i++){

var detailValue = parseInt(detailObj.options[i].getAttribute(detailField));

if((masterValue != detailValue) && parseInt(detailObj.options[i].value) > 0) {

detailObj.remove(i);

i--;

}

return;

}