Tree ^0.7.0

Enable tree function in two steps

1. Set StkTableColumn['type'] to tree-node to specify the position of the tree expansion button

const columns: StkTableColumn<any>[] = [
    { type: 'tree-node', title: 'Area', dataIndex: 'area' },
]

2. Add children field to the data source. After clicking, the content in the children field of the data will be displayed as child nodes.

export const getDataSource = () => [ 
    {
        area: 'Asia',
        gdp: 10000,
        population: 50000000,
        gdpPerCapita: 20000,
        children: [
            { area: 'China', gdp: 5000, population: 1400000000, gdpPerCapita: 35000, }, 
            { area: 'Japan', gdp: 4000, population: 126000000, gdpPerCapita: 33000, }
        ],
    },
];

Simple Tree

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Default Expanded Nodes

Expand All

treeConfig.defaultExpandAll = true

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Expand Specific Level

treeConfig.defaultExpandLevel = 1

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Expand Specific Nodes

treeConfig.defaultExpandedKeys = ['Asia', 'China', 'Zhejiang']

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Virtual List

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Note

The component will inject the __T_EXPANDED__ field into each row of the dataSource to control whether it is expanded. Do not modify this field when updating the data of a row. Therefore, Object.assign is used in the example to update data.

Performance Note

Even with virtual lists, every change in props.dataSource will cause the component to internally traverse dataSource to flatten the data. Therefore, for frequently changing data, it will occupy more computing resources of the computer. If you have certain performance requirements, you can refer to Example - Large Data to implement the tree expansion logic yourself.