The virtualized table component for Ant Design，fast and restorable.

• Install

npm i --save virtualizedtableforantd

• All interfaces(hooks added in v0.7.x)

  
  // the param of the func VTComponents.
  interface vt_opts extends Object {
      readonly id: number;
      /**
       * @default 5
      */
      overscanRowCount?: number;
      /**
       * wheel event(only works on native events).
       * 滚轮事件（只对原生事件有效）。
       */
      onScroll?: ({ left, top, isEnd, }: {
          top: number;
          left: number;
          isEnd: boolean;
      }) => void;
      /**
       * @default false
      */
      destroy?: boolean;
      /**
       * @default false
      */
      debug?: boolean;
  }
  
  /* all APIs */
  export declare function VTComponents(vt_opts: vt_opts): TableComponents;
  export declare function setComponents(id: number, components: TableComponents): void;
  export declare function VTScroll(id: number, param?: {
      top: number;
      left: number;
  }): {
      top: number;
      left: number;
  };

• Quick start

  You need to change your style like following if your Table.size is not default.

  如果你的Table.size不是默认的话，你需要修改像下面一样的style。

  // size={'small'}
  ant-table [vt] > table > .ant-table-tbody > tr > td {
      padding: 8px;
  }

  import React from 'react';
  import { Table } from 'antd';
  import { VTComponents } from 'virtualedtableforantd';
  
  // using in the antd table
  <Table
    scroll={{ y: 500 }} // it's important for using VTComponents!!!
    components={
      VTComponents({
        id: 1000,    /*the id is immutable*/
      })
    }
    columns={/*your columns*/}
    dataSource={/*your data*/}
  />

• Restoring last state (including hooks version)

  import React, { PureComponent, useEffect } from 'react';
  import { Table } from 'antd';
  
  const ctx = { top: 0 };
  
  /* Class version. */
  class Users extends PureComponent {
    constructor(...args) {
      super(...args);
    }
  
    render() {
      return (
        <Table
          scroll={{ y: 500 }}
          components={VTComponents({
            id: 1000,
            onScoll: ({ left, top }) => ctx.top = top
            })
          }
        />
      );
    }
  
    componentDidMount() {
      VTScroll(1000, { top: ctx.top });
    }
  
    componentWillUnmount() {
      ctx.top = VTScroll(1000).top;
    }
  }

/* Hooks version. */
import React, { useEffect } from 'react';
import { Table } from 'antd';
import { useVT } from 'virtualedtableforantd';

const ctx = { top: 0 };
function Users() {

  const [
    VT,
    setComponents, // no longer needs the param id.
    VTScroll,      // no longer needs the param id.
    ] = useVT({ onScoll: ({ left, top }) => ctx.top = top });

  useEffect(() => {
    VTScroll({ top: ctx.top });

    return () => ctx.top = VTScroll().top;
  }, []);

  return (
    <Table
      scroll={{ y: 500 }}
      components={VT}
      columns={/*your columns*/}
      dataSource={/*your dataSource*/}
    />
  );
}

//--------- About
function About() {
  return "About...";
}

function App() {
  return (
    <>
      <NavLink to={'/users'}>Users</NavLink>
      <NavLink to={'/about'}>About</NavLink>
      <Switch>
        <Route component={Users} path="/users" />
        <Route component={About} path="/about" />
      </Switch>
    </>
  );
}

• Editable Table

  there are 3 examples following:

  • CustomRows
  • CustomRows Hooks
  • Editable Rows

• support column.fixed

  
  const columns = [
    {
      title: 'Full Name',
      width: 100,
      dataIndex: 'name',
      key: 'name',
      fixed: 'left',
    },
    {
      title: 'Age',
      width: 100,
      dataIndex: 'age',
      key: 'age',
      fixed: 'left',
    },
    {
      title: 'Column 1',
      dataIndex: 'address',
      key: '1',
      width: 150,
    },
    {
      title: 'Column 2',
      dataIndex: 'address',
      key: '2',
      width: 150,
    },
    {
      title: 'Column 3',
      dataIndex: 'address',
      key: '3',
      width: 150,
    },
    {
      title: 'Column 4',
      dataIndex: 'address',
      key: '4',
      width: 150,
    },
    {
      title: 'Column 5',
      dataIndex: 'address',
      key: '5',
      width: 150,
    },
    {
      title: 'Column 6',
      dataIndex: 'address',
      key: '6',
      width: 150,
    },
    {
      title: 'Column 7',
      dataIndex: 'address',
      key: '7',
      width: 150,
    },
    { title: 'Column 8', dataIndex: 'address', key: '8' },
    {
      title: 'Action',
      key: 'operation',
      fixed: 'right',
      width: 100,
      render: => 'Action',
    },
  ];
  
  const data = [];
  for (let i = 0; i < 100; i++) {
    data.push({
      key: i,
      name: `Edrward ${i}`,
      age: 32,
      address: `London Park no. ${i}`,
    });
  }
  
  
  function renderTable() {
    return (
      <Table
        columns={columns}
        dataSource={data}
        scroll={{ x: 1500, y: 300 }}
        components={VTComponents({ id: 1000 })}
      />
    );
  }
  

• Hooks APIs(new)

    
  function MyTable() {
    const [
      VT,
      setComponents, // no longer needs the param id.
      VTScroll,      // no longer needs the param id.
      ] = useVT(/*the same as `vt_opts`, but no longer needs the param id. */);
  
    return (
      <Table
        scroll={{ y: 500 }}
        components={VT}
        columns={/*your columns*/}
        dataSource={/*your data*/}
      />
    );
  }
  

License

MIT