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7
Votes

Grid with aggregates lose data when two subclasses are used

When I have a grid that has a TValue with subclasses, aggregates prevent data from being displayed

Pre-requirements

  • Has aggregates
  • Use batch edit mode
  • `TValue` is a base class A
  • DataSource only has elements from a subclass B

(see attachment grid-lose-data-demo.gif)

Repro steps

  1. Run the example playground
  2. Try to add an element from another subclass C
  3. The data is lost (no errors in the console)

Expected result

The data should be visible after adding an element from another subclass.