el-table多选时翻页数据存储以及多选数据条数限制_el-table表格限制显示几条数据

多选时翻页数据存储

// 关键是 :row-key="rowKey" :reserve-selection="true"
<el-table :data="tableData" @selection-change="handleSelectionChange"  height="480" 		           style="width: 100%;height: 100%;border: 2px solid rgba(0, 125, 252, 0.27);padding-bottom: 10px" :row-key="rowKey" ref="fileTable">
     <el-table-column type="selection" width="55" :reserve-selection="true" :selectable="selectAble"></el-table-column>
</el-table>

// rowKey方法
rowKey(row) {
  return row.id
},
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多选数据条数限制

// 关键是 @selection-change="handleSelectionChange"  :selectable="selectAble"
<el-table :data="tableData" @selection-change="handleSelectionChange"  height="480" 		           style="width: 100%;height: 100%;border: 2px solid rgba(0, 125, 252, 0.27);padding-bottom: 10px" :row-key="rowKey" ref="fileTable">
     <el-table-column type="selection" width="55" :reserve-selection="true" :selectable="selectAble"></el-table-column>
</el-table>

// rowKey方法
selectAble(row) {
  if (row.status === 1) {
    return true;
  }
    return false;
  },
  handleSelectionChange(val) {
  	this.multipleSelection = val; //选中的数据
    if (this.multipleSelection.length >= this.checkNum) {  //checkNum 默认最多选中几条
      this.$message.warning(`最多只能选${this.checkNum}条数据`);
      for (let j of this.tableData) { //向选中的数据中添加字段，根据添加字段使用selectAble()方法
        j.status = 0;
        for (let i of this.multipleSelection) {  
          if (i.id == j.id) {
            j.status = 1;  
          }
        }
      }
      return
    } else {
      for (let i in this.tableData) {
        this.tableData[i].status = 1;
      }
    }
  },
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