elementui table禁用全选,一次限制勾选一项。

1、设置属性：@selection-change=“handleSelectionChange”

<el-table:data="taskList"ref="tableDataRefs"@selection-change="handleSelectionChange":header-cell-class-name="hideAllCheckbox">

function handleSelectionChange(selection) {if (selection.length > 1) {// 如果选择了多个，只保留最后一个selectedRow.value = selection[selection.length - 1];let del_row = selection.shift();// 其余的都不选中tableDataRefs.value.toggleRowSelection(del_row, false);} else {selectedRow.value = selection.length ? selection[0] : null;}
}

2、使用动态css 隐藏顶部全选框。添加属性：:header-cell-class-name=“hideAllCheckbox”

function hideAllCheckbox({ row, column, rowIndex, columnIndex }) {if (columnIndex === 0) return "setDisable";
}

<style lang="scss" scoped>
:deep(.setDisable) {.cell {visibility: hidden;}
}
</style>