antdv3 虚拟滚动

ADTDV3（Ant Design Vue 3）是一个基于Vue 3开发的Ant Design UI组件库，它提供了丰富的设计风格和易用的API，包括虚拟滚动功能。虚拟滚动是一种优化技术，主要用于大数据量列表的渲染，通过只渲染可见部分的组件，避免一次性加载过多数据导致性能问题。当用户滚动时，虚拟滚动会动态创建和卸载行，只有当前和即将显示的部分会被实际渲染。

在ADTDV3中，你可以使用`<a-virtual-scroll>`组件来启用虚拟滚动。这个组件需要配合`<template>`区域定义每一项的内容，并提供如`length`属性来指定总的数据长度，`item-size`属性表示每项的高度。例如：

<a-virtual-scroll :length="totalItems" item-size="50">
  <template v-for="(item, index) in items" :key="index">
    <!-- 渲染每一项的组件 -->
    <div>{{ item.content }}</div>
  </template>
</a-virtual-scroll>

相关问题

antdv自动以表格滚动条演示

好的，这里是一个简单的 antd 表格自定义滚动条的示例代码：

import React from 'react';
import { Table } from 'antd';
import './customTable.css';

const dataSource = [
  {
    key: '1',
    name: 'Mike',
    age: 32,
    address: '10 Downing Street',
  },
  {
    key: '2',
    name: 'John',
    age: 42,
    address: '10 Downing Street',
  },
  {
    key: '3',
    name: 'Tom',
    age: 28,
    address: '10 Downing Street',
  },
];

const columns = [
  {
    title: 'Name',
    dataIndex: 'name',
    key: 'name',
  },
  {
    title: 'Age',
    dataIndex: 'age',
    key: 'age',
  },
  {
    title: 'Address',
    dataIndex: 'address',
    key: 'address',
  },
];

const CustomTable = () => {
  return (
    <div className="table-container">
      <Table dataSource={dataSource} columns={columns} pagination={false} />
    </div>
  );
};

export default CustomTable;

然后在 `customTable.css` 文件中添加以下代码：

.table-container {
  max-height: 300px;
  overflow-y: scroll;
}

这个示例中，我们设置了表格容器的最大高度为 300px，当表格内容超出容器高度时，会自动出现纵向滚动条。

antdv3 resetFields

The `resetFields` method of Ant Design v3 is used to reset the values of one or more form fields to their initial state. This method can be called on the `Form` instance or on a `Form.Item` instance.

Here's an example of calling `resetFields` on a `Form` instance:

import { Form, Input, Button } from 'antd';

const MyForm = () => {
  const [form] = Form.useForm();

  const handleReset = () => {
    form.resetFields();
  };

  return (
    <Form form={form}>
      <Form.Item name="username" label="Username">
        <Input />
      </Form.Item>
      <Form.Item name="password" label="Password">
        <Input.Password />
      </Form.Item>
      <Button onClick={handleReset}>Reset</Button>
    </Form>
  );
};

In the above example, the `handleReset` function is called when the "Reset" button is clicked. This function calls `resetFields` on the `form` object, which resets the values of both the "username" and "password" fields to their initial state.

You can also pass an array of field names to `resetFields` to only reset specific fields:

const handleReset = () => {
  form.resetFields(['username']);
};

In this example, only the "username" field will be reset when the "Reset" button is clicked.