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业务要求:

  下拉框做选择时需要展现多个字段供用户参考,由于内容可能会很多,故还需要考虑分页。

解决方案:

  由于项目整体已经采用了EasyUI,在浏览了demo以后,初步考虑使用EasyUI的combogrid。

界面参考:

  

实现细节:

下拉框代码,发现combogrid是继承datagrid的,所以可以使用pagination属性, 

 1 <select id="leftItem" class="easyui-combogrid" name="leftItem" style=""
 2             data-options="
 3                 label: '左侧物料:',
 4                 labelWidth:70,
 5                 labelPosition: 'left',
 6                 loadMsg:'正在查询请稍后......',
 7                 panelWidth:500,
 8                 panelHeight:500,
 9                 delay:600,
10                 width: 200,
11                 value:'',
12                 idField:'itemNumber',
13                 textField:'itemNumber',
14                 rownumbers : true,
15                 mode: 'remote',
16                 pagination:true,
17                 pageSize: 20,
18                 url:'pageItemVersions.do',
19                 onBeforeLoad : beforeLoadFn,
20                 onSelect:gridSelectRow,
21                 columns:[[
22                     {field:'itemNumber',title:'物料编码',width:100},
23                     {field:'itemName',title:'物料名称',width:140},
24                     {field:'version',title:'版本',width:40},
25                     {field:'itemType',title:'类别',width:120},
26                     {field:'lifeCycle',title:'生命周期',width:80}
27                 ]]
28             "></select>
29             <input id="leftVersion" class="easyui-textbox" data-options="
30                     label: '左侧版本:',
31                     labelWidth:70,
32                     labelPosition: 'left',
33                     prompt: '',
34                     width: 110
35                     " />
36                     
37             <a id="saveBtn" href="#" iconCls="icon-search" style="margin-left: 50px;margin-right: 50px;" class="easyui-linkbutton" onclick="compare()">比较</a>

部分js代码:

 1 function gridSelectRow(index, row){
 2     $("#leftVersion").textbox("setValue",row.version);
 3 }
 4 
 5 function rightGridSelectRow(index, row){
 6     $("#rightVersion").textbox("setValue",row.version);
 7 }
 8 
 9 function beforeLoadFn(param){
10     if(!param || !param.q){
11         return false;
12     }
13     param.limit = param.rows;
14     var start = (param.page - 1) * param.rows;
15     param.start = start;
16 }
17 
18 $(function() {
19     if(isLowerIE9()){
20         alert("建议使用IE10以上或者其他非IE内核浏览器,IE10以下部分功能无法正常使用!");
21     }
22     var itemNumber = "${itemNumber}";
23     if(itemNumber){
24         $('#leftItem').combogrid("setValue", itemNumber);
25         var leftGrid = $('#leftItem').combogrid('grid');    // get datagrid object
26         var result = leftGrid.datagrid('load',{q:itemNumber});    // get the selected row
27         if(result){
28             
29         }
30     }
31 });

后台Java代码:

@RequestMapping("pageItemVersions.do")
    @ResponseBody
    public PageEasyUI<ItemVO> pageItemVersions(String q, Pageable pageable) {
        PageEasyUI<ItemVO> page = null;
        if (StringUtils.isNotBlank(q)) {
            Map<String, Object> map = new HashMap<String, Object>();
            map.put("itemNumber", q);
            page = itemBomService.pageItemVersions(map, pageable);
        }
        return page;
    }

返回值:

public class PageEasyUI<T> {

    /** 汇总 */
    private Long total;
    /** 内容 */
    private List<T> rows;

    public Long getTotal() {
        return total;
    }

    public void setTotal(Long total) {
        this.total = total;
    }

    public List<T> getRows() {
        return rows;
    }

    public void setRows(List<T> rows) {
        this.rows = rows;
    }

    public PageEasyUI() {
    }

    public PageEasyUI(List<T> list) {
        super();
        this.rows = list;
        if (list instanceof Page) {
            Page<T> page = (Page<T>) list;
            this.total = page.getTotal();
        } else {
            if (CollectionUtils.isEmpty(list)) {
                this.total = 0L;
            } else {
                this.total = Long.valueOf(list.size());
            }
        }
    }
}

 

posted on 2019-01-20 22:12 namelessmyth 阅读(...) 评论(...) 编辑 收藏