• 解决页面中的顺序调整问题


    业务给了一个需求,要求在页面中实现上移、下移、置顶和置底操作。

    由于数据量不大,加上加分页功能会加大工具量,于是取消了分页需求。以下附上实现功能的各个方法

    /*******基于antd-table实现,dataListOp是表格的数据源,item是当前项,index是当前项的索引 **/
      1     handleCeil(item, index, dataListOP) {
      2       if( index === 0 ) {
      3         Modal.warning({
      4           title: '警告',
      5           content: '当前项已经是第一项了。'
      6         })
      7         return
      8       }
      9       /**交换index与0的位置 */
     10       // dataListOP[0] = dataListOP.splice(index, 1, dataListOP[0])[0] 
     11       /**index置顶,其他顺延 */
     12       let oldFirst = dataListOP[0]
     13       console.log('oldFirst', oldFirst)
     14       dataListOP[0] = dataListOP.splice(index, 1)[0]
     15       dataListOP.splice(1, 0, oldFirst)
     16 
     17       dataListOP = [...dataListOP]
     18       let seqList = []
     19       dataListOP.map( (item, index) => {
     20         seqList.push({
     21           marketProspectId: item.marketProspectId,
     22           displayOrder: index+1
     23         })
     24       })
     25       dispatch({
     26         type: 'marketOutlookList/setSequence',
     27         payload: {
     28           marketProspectList: seqList
     29         },
     30         async: true
     31       })
     32     },
     33     handlegoUp(item, index, dataListOP) {
     34       if( index === 0 ) {
     35         Modal.warning({
     36           title: '警告',
     37           content: '当前项已经是第一项了。'
     38         })
     39         return
     40       }
     41       dataListOP[index] = dataListOP.splice(index-1, 1, dataListOP[index])[0]
     42       console.log("dataListOP =  ", dataListOP);
     43       dataListOP = [...dataListOP]
     44       let seqList = []
     45       dataListOP.map( (item, index) => {
     46         seqList.push({
     47           marketProspectId: item.marketProspectId,
     48           displayOrder: index+1
     49         })
     50       })
     51       dispatch({
     52         type: 'marketOutlookList/setSequence',
     53         payload: {
     54           marketProspectList: seqList
     55         },
     56         async: true
     57       })
     65     },
     66     handleDown(item, index, dataListOP) {
     67       let len = dataListOP ? dataListOP.length-1 : 0;
     68       if( index === len ) {
     69         Modal.warning({
     70           title: '警告',
     71           content: '当前项已经是最后一项了。'
     72         })
     73         return
     74       }
     75       dataListOP[index+1] = dataListOP.splice(index, 1, dataListOP[index+1])[0]
     76       console.log("dataListOP =  ", dataListOP);
     77       dataListOP = [...dataListOP]
     78       let seqList = []
     79       dataListOP.map( (item, index) => {
     80         seqList.push({
     81           marketProspectId: item.marketProspectId,
     82           displayOrder: index+1
     83         })
     84       })
     85       dispatch({
     86         type: 'marketOutlookList/setSequence',
     87         payload: {
     88           marketProspectList: seqList
     89         },
     90         async: true
     91       })
     92     },
     93     handleFloor(item, index, dataListOP) {
     94       let len = dataListOP ? dataListOP.length-1 : 0;
     95       if( index === len ) {
     96         Modal.warning({
     97           title: '警告',
     98           content: '当前项已经是最后一项了。'
     99         })
    100         return
    101       }
    102       //交换当前项和最后一项
    103       // dataListOP[len] = dataListOP.splice(index, 1, dataListOP[len])[0]
    104       /**index置顶,其他顺延 */
    105       let oldFirst = dataListOP[len]
    106       console.log('oldFirst', oldFirst)
    107       dataListOP[len] = dataListOP.splice(index, 1)[0]
    109 
    110       console.log("dataListOP =  ", dataListOP);
    111       dataListOP = [...dataListOP]
    112       let seqList = []
    113       dataListOP.map( (item, index) => {
    114         seqList.push({
    115           marketProspectId: item.marketProspectId,
    116           displayOrder: index+1
    117         })
    118       })
    119       dispatch({
    120         type: 'marketOutlookList/setSequence',
    121         payload: {
    122           marketProspectList: seqList
    123         },
    124         async: true
    125       })
    126     },
    ————————————来自 大中国的智慧结晶
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  • 原文地址:https://www.cnblogs.com/guoqiaoqiao/p/13597541.html
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