我在项目中设计课程表的时候需要用到老师和分类之间的多级联动。

首先是一张效果图：

下面是实现的代码：

<body>
<script type="text/javascript">
$(function(){
var editing ; //判断用户是否处于编辑状态
var flag ; //判断新增和修改方法
$('#set_schedule').datagrid({
idField:'id' ,
fitColumns: false ,
url:'scheduleAction_loadScheduleData.action?sureDocumentId='+$("#sureDocumentId").val() ,
striped: true ,
loadMsg: '数据正在加载,请耐心的等待...' ,
rownumbers:true ,
singleSelect : true,
frozenColumns:[[
{field:'ck' , checkbox:true}
]],
columns:[[
{
field:'dateTime' ,
title:'时间' ,
width:100 ,
align:'center' ,
editor:{
type:'datebox' ,
options:{
required:true ,
missingMessage:'时间必填!' ,
editable:false
}
}
},
{
field:'morningTime' ,
title:'上午上课时间段' ,
width:126 ,
align:'center',
editor:{
type:'validatebox' ,
options:{
required:true ,
missingMessage:'时间段必填!'
}
}
},
{
field:'morningCourse' ,
title:'上午课程' ,
width:100 ,
editor:{
type:'validatebox' ,
options:{
required:true ,
missingMessage:'课程必填!'
}
}
},
{
field:'aa1' ,
title:'主讲老师分类' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'codeTypeAction_search.action?parentId=0&type=27',
valueField:'id' ,
textField:'name',
onSelect:function(data){
var row = $('#set_schedule').datagrid('getSelected');
var rowIndex = $('#set_schedule').datagrid('getRowIndex',row);//获取行号
var thisTarget = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'aa1'}).target;
var value = thisTarget.combobox('getValue');
var target = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'bb1'}).target;
target.combobox('clear'); //清除原来的数据
var url = 'codeTypeAction_search.action?type=28&parentId='+value;
target.combobox('reload', url);//联动下拉列表重载
}
}
}
},
{
field:'bb1' ,
title:'主讲老师细类' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'codeTypeAction_search.action?type=28',
valueField:'id' ,
textField:'name',
onSelect:function(data){
var row = $('#set_schedule').datagrid('getSelected');
var rowIndex = $('#set_schedule').datagrid('getRowIndex',row);//获取行号
var thisTarget = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'bb1'}).target;
var value = thisTarget.combobox('getValue');
var target = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'morningTeacherId'}).target;
target.combobox('clear'); //清除原来的数据
var url = 'teacherAction_search.action?teacherTypeId2='+value;
target.combobox('reload', url);//联动下拉列表重载
}
}
}
},
{
field:'morningTeacherId' ,
title:'主讲老师' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'teacherAction_search.action',
valueField:'id' ,
textField:'name'
}
}
},
{
field:'afternoonTime' ,
title:'下午上课时间段' ,
width:126 ,
align:'center' ,
editor:{
type:'validatebox' ,
options:{
required:true ,
missingMessage:'时间段必填!'
}
}
},
{
field:'afternoonCourse' ,
title:'下午课程' ,
width:100 ,
editor:{
type:'validatebox' ,
options:{
required:true ,
missingMessage:'课程必填!'
}
}
},
{
field:'aa2' ,
title:'主讲老师分类' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'codeTypeAction_search.action?parentId=0&type=27',
valueField:'id' ,
textField:'name',
onSelect:function(data){
var row = $('#set_schedule').datagrid('getSelected');
var rowIndex = $('#set_schedule').datagrid('getRowIndex',row);//获取行号
var thisTarget = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'aa2'}).target;
var value = thisTarget.combobox('getValue');
var target = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'bb2'}).target;
target.combobox('clear'); //清除原来的数据
var url = 'codeTypeAction_search.action?type=28&parentId='+value;
target.combobox('reload', url);//联动下拉列表重载
}
}
}
},
{
field:'bb2' ,
title:'主讲老师细类' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'codeTypeAction_search.action?type=28',
valueField:'id' ,
textField:'name',
onSelect:function(data){
var row = $('#set_schedule').datagrid('getSelected');
var rowIndex = $('#set_schedule').datagrid('getRowIndex',row);//获取行号
var thisTarget = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'bb2'}).target;
var value = thisTarget.combobox('getValue');
var target = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'afternoonTeacherId'}).target;
target.combobox('clear'); //清除原来的数据
var url = 'teacherAction_search.action?teacherTypeId2='+value;
target.combobox('reload', url);//联动下拉列表重载
}
}
}
},
{
field:'afternoonTeacherId' ,
title:'主讲老师' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'teacherAction_search.action',
valueField:'id' ,
textField:'name'
}
}
},
{
field:'eveningTime' ,
title:'晚上上课时间段' ,
width:126 ,
align:'center' ,
editor:{
type:'validatebox' ,
options:{
required:true ,
missingMessage:'时间段必填!'
}
}
},
{
field:'eveningCourse' ,
title:'晚上课程' ,
width:100 ,
editor:{
type:'validatebox' ,
options:{
required:true ,
missingMessage:'课程必填!'
}
}
},
{
field:'aa3' ,
title:'主讲老师分类' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'codeTypeAction_search.action?parentId=0&type=27',
valueField:'id' ,
textField:'name',
onSelect:function(data){
var row = $('#set_schedule').datagrid('getSelected');
var rowIndex = $('#set_schedule').datagrid('getRowIndex',row);//获取行号
var thisTarget = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'aa3'}).target;
var value = thisTarget.combobox('getValue');
var target = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'bb3'}).target;
target.combobox('clear'); //清除原来的数据
var url = 'codeTypeAction_search.action?type=28&parentId='+value;
target.combobox('reload', url);//联动下拉列表重载
}
}
}
},
{
field:'bb3' ,
title:'主讲老师细类' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'codeTypeAction_search.action?type=28',
valueField:'id' ,
textField:'name',
onSelect:function(data){
var row = $('#set_schedule').datagrid('getSelected');
var rowIndex = $('#set_schedule').datagrid('getRowIndex',row);//获取行号
var thisTarget = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'bb3'}).target;
var value = thisTarget.combobox('getValue');
var target = $('#set_schedule').datagrid('getEditor', {'index':rowIndex,'field':'eveningTeacherId'}).target;
target.combobox('clear'); //清除原来的数据
var url = 'teacherAction_search.action?teacherTypeId2='+value;
target.combobox('reload', url);//联动下拉列表重载
}
}
}
},
{
field:'eveningTeacherId' ,
title:'主讲老师' ,
width:100 ,
editor : {
type : 'combobox',
options : {
url:'teacherAction_search.action',
valueField:'id' ,
textField:'name'
}
}
}
]] ,
pagination: true ,
pageSize: 10 ,
pageList:[5,10,15,20,50] ,
toolbar:[
{
text:'新增课程',
iconCls:'icon-add' ,
handler:function(){
if(editing == undefined){
flag = 'add';
//1 先取消所有的选中状态
$('#set_schedule').datagrid('unselectAll');
//2追加一行
$('#set_schedule').datagrid('appendRow',{description:''});
//3获取当前页的行号
editing = $('#set_schedule').datagrid('getRows').length -1;
//4选中并开启编辑状态
$('#set_schedule').datagrid('selectRow',editing);
$('#set_schedule').datagrid('beginEdit', editing);
}
}
}/* ,{
text:'修改课程',
iconCls:'icon-edit' ,
handler:function(){
var arr = $('#set_schedule').datagrid('getSelections');
if(arr.length != 1){
$.messager.show({
title:'提示信息',
msg:'只能选择一条记录进行修改!'
});
} else {
if(editing == undefined){
flag = 'edit';
//根据行记录对象获取该行的索引位置
editing = $('#set_schedule').datagrid('getRowIndex' , arr[0]);
//开启编辑状态
$('#set_schedule').datagrid('beginEdit',editing);
}
}
}
} */,{
text:'保存课程',
iconCls:'icon-save' ,
handler:function(){
//保存之前进行数据的校验 , 然后结束编辑并师傅编辑状态字段
if($('#set_schedule').datagrid('validateRow',editing)){
$('#set_schedule').datagrid('endEdit', editing);
editing = undefined;
}
}
},{
text:'删除课程',
iconCls:'icon-remove' ,
handler:function(){
var arr = $('#set_schedule').datagrid('getSelections');
if(arr.length <= 0 ){
$.messager.show({
title:'提示信息',
msg:'请选择进行删除操作!'
});
} else {
$.messager.confirm('提示信息' , '确认删除?' , function(r){
if(r){
var ids = '';
for(var i = 0 ; i < arr.length ; i++){
ids += arr[i].id + ',';
}
ids = ids.substring(0,ids.length-1);
$.post('scheduleAction_delete.action' , {ids:ids},function(result){
$('#set_schedule').datagrid('reload');
$.messager.show({
title:'提示信息',
msg:'操作成功!'
});
});
} else {
return ;
}
});
}
}
},{
text:'取消操作',
iconCls:'icon-cancel' ,
handler:function(){
//回滚数据
$('#set_schedule').datagrid('rejectChanges');
editing = undefined;
}
}
] ,
onAfterEdit:function(index , record){
var data = $('#moduleform').serialize();
$.post(flag=='add'?'scheduleAction_addSchedule.action?'+data:'scheduleAction_updateSchedule.action' , record , function(result){
var data = $.parseJSON(result);
$('#set_schedule').datagrid('reload');
$.messager.show({
title:'提示信息',
msg:data.message
});
},'text');
}
});
});
</script>
<form id="moduleform" method="post">
<s:hidden name="sureDocumentId" id="sureDocumentId"></s:hidden>
<table cellspacing="1" cellpadding="5" class="tb_background2" width="100%">
<tr>
<td width="20%" class="td_right">总学时：</td>
<td width="28%" class="td_left">
<s:textfield name="totalLearnTime" id="totalLearnTime" size="32"/>学时
</td>
<td width="20%" class="td_right">是否可见：</td>
<td width="28%" class="td_left">
<s:select list="#{'0':'可见','1':'不可见' }" cssStyle="width:200px;" name="type" id="type"></s:select>
</td>
</tr>
</table>
</form>
<table id="set_schedule"></table>
</body>