Doesn't work with immutable records

[Vincz]

I'm working with GraphQL generation and the records of my data source are immutable (non extensible objects) (see: https://developer.mozilla.org/fr/docs/Web/JavaScript/Reference/Global_Objects/Object/preventExtensions).

So this line:

virtualized-table-for-antd/src/vt.tsx

Line 727 in 66f0e80

trs[0].props.record[row_idx] = 0;

doesn't work and triggers the following error: TypeError: Cannot add property Symbol(idx), object is not extensible

Would it be another way to keep the index? Maybe with a map using rowKey as key?

[wubostc]

Every row needs an index that held with the prop record, which I can determine the true index number of every row, and don't worry about whether the dataSource is a tree-structure or a nested-structure.

To solve this problem, I have to write something like row.props.record[row_idx] to keep a true index number

Could you solve this problem instead of that I mentioned above, and create a new PR with a branch?

Tips: there are a few things need to be changed below (at least)

1. Initial state within VTWarpper
   

   virtualized-table-for-antd/src/vt.tsx

   Line 727 in 66f0e80

   trs[0].props.record[row_idx] = 0;

2. Running state within VTWarpper
   

   virtualized-table-for-antd/src/vt.tsx

   Line 791 in 66f0e80

   trs.forEach(el => el.props.record[row_idx] = idx++);

3. Determining the true index number within VTRow
   

   virtualized-table-for-antd/src/vt.tsx

   Line 841 in 66f0e80

   const index: number = row_props.record[row_idx];

[PunkOnWheels]

Has there been any progress on this? I am now running into this issue too.

[wubostc]

@PunkOnWheels I haven't had any ideas so far

[Vincz]

Hi @wubostc
Made an attempt here: #132

[wubostc]

@Vincz @PunkOnWheels solved! 👍