element 表格第一列合并，第二列展开后出现错位情况

本文主要是介绍element 表格第一列合并，第二列展开后出现错位情况，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

展开后发现蓝色一行挤下来，而且还错位了

解决思路：展开行，在dom上其实是新增了一行的高度，合并上新增一个高度就可以

<el-tablev-loading="tabLoading"fitref="oneRef"height="100%":span-method="objectSpanMethod"@expand-change="expandHeight"highlight-current-row
>async expandHeight(row: any, expanded: any) {this.$nextTick(() => {this.spanObj = dataMethod(this.data, ['factoryDivText']);const A10 = expanded.filter((k: any) => {return 'A10' == k.factoryDiv;});if (A10.length > 0) {this.spanObj.factoryDivText[0] = this.spanObj.factoryDivText[0] + A10.length;}const A20 = expanded.filter((k: any) => {return 'A20' == k.factoryDiv;});if (A20.length > 0) {let A20Index = 0;this.spanObj.factoryDivText.map((v: any, index: any) => {if (A10.length == 0) {this.spanObj.factoryDivText[0] = this.spanObj.factoryDivText[0] + A20.length;} else {if (index != 0 && v != 0) A20Index = index;}});this.spanObj.factoryDivText[A20Index] = this.spanObj.factoryDivText[0] + A20.length;}(this.$refs.oneRef as any).doLayout();});}export const dataMethod = (data: any[], isH: string[]) => {const spanObj: any = {};const pos: any = {};let lastItem: any = null; // 上一个数据项data.map((it, i) => {Object.keys(it).map(key => {if (i === 0) {spanObj[key] = [1];pos[key] = i;} else {if (isH.includes(key) && lastItem && isEqual(lastItem, it, isH)) {spanObj[key][pos[key]] += 1;spanObj[key].push(0);} else {spanObj[key].push(1);pos[key] = i;}}});lastItem = it;});return spanObj;
};objectSpanMethod({ column, rowIndex }: any) {const _row = this.spanObj[column.property] ? this.spanObj[column.property][rowIndex] : 1;const _col = _row > 0 ? 1 : 0;return {rowspan: _row,colspan: _col,};}

获取点击后合并的长度+合并的数字

最终结果展开后正常展示了