layui合并单元格

在layui初始化完成之后done回调中调用该方法,同一列中有相同值会合并,第二个值需在控制台尝试

var execRowspan = function(fieldName,index,flag){
  // 1为不冻结的情况，左侧列为冻结的情况
  let fixedNode = index=="1"?$(".layui-table-body")[index - 1]:(index=="3"?$(".layui-table-fixed-r"):$(".layui-table-fixed-l"));
  // 左侧导航栏不冻结的情况
  let child = $(fixedNode).find("td");
  let childFilterArr = [];
  // 获取data-field属性为fieldName的td
  for(let i = 0; i < child.length; i++){
    if(child[i].getAttribute("data-field") == fieldName){
      childFilterArr.push(child[i]);
    }
  }
  // 获取td的个数和种类
  let childFilterTextObj = {};
  for(let i = 0; i < childFilterArr.length; i++){
    let childText = flag?childFilterArr[i].innerHTML:childFilterArr[i].textContent;
    if(childFilterTextObj[childText] == undefined){
      childFilterTextObj[childText] = 1;
    }else{
      let num = childFilterTextObj[childText];
      childFilterTextObj[childText] = num*1 + 1;
    }
  }
  let canRowspan = true;
  let maxNum;//以前列单元格为基础获取的最大合并数
  let finalNextIndex;//获取其下第一个不合并单元格的index
  let finalNextKey;//获取其下第一个不合并单元格的值
  for(let i = 0; i < childFilterArr.length; i++){
    (maxNum>9000||!maxNum)&&(maxNum = $(childFilterArr[i]).prev().attr("rowspan")&&fieldName!="8"?$(childFilterArr[i]).prev().attr("rowspan"):9999);
    let key = flag?childFilterArr[i].innerHTML:childFilterArr[i].textContent;//获取下一个单元格的值
    let nextIndex = i+1;
    let tdNum = childFilterTextObj[key];
    let curNum = maxNum<tdNum?maxNum:tdNum;
    if(canRowspan){
      for(let j =1;j<=curNum&&(i+j<childFilterArr.length);){//循环获取最终合并数及finalNext的index和key
        finalNextKey = flag?childFilterArr[i+j].innerHTML:childFilterArr[i+j].textContent;
        finalNextIndex = i+j;
        if((key!=finalNextKey&&curNum>1)||maxNum == j){
          canRowspan = true;
          curNum = j;
          break;
        }
        j++;
        if((i+j)==childFilterArr.length){
          finalNextKey=undefined;
          finalNextIndex=i+j;
          break;
        }
      }
      childFilterArr[i].setAttribute("rowspan",curNum);
      if($(childFilterArr[i]).find("div.rowspan").length>0){//设置td内的div.rowspan高度适应合并后的高度
        $(childFilterArr[i]).find("div.rowspan").parent("div.layui-table-cell").addClass("rowspanParent");
        $(childFilterArr[i]).find("div.layui-table-cell")[0].style.height= curNum*38-10 +"px";
      }
      canRowspan = false;
    }else{
      childFilterArr[i].style.display = "none";
    }
    if(--childFilterTextObj[key]==0|--maxNum==0|--curNum==0|(finalNextKey!=undefined&&nextIndex==finalNextIndex)){//||(finalNextKey!=undefined&&key!=finalNextKey)
      canRowspan = true;
    }
  }
}
//合并数据表格行
var layuiRowspan = function(fieldNameTmp,index,flag){
  let fieldName = [];
  if(typeof fieldNameTmp == "string"){
    fieldName.push(fieldNameTmp);
  }else{
    fieldName = fieldName.concat(fieldNameTmp);
  }
  for(let i = 0;i<fieldName.length;i++){
    execRowspan(fieldName[i],index,flag);
  }
}

//使用
//layui.....
done:function(){
layuiRowspan('name',1,false)
}