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7
Votes

Grid with aggregates freezes when using a subclass in batch edit mode

Grid that has a TValue with subclasses, aggregates break the functionality

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-freezes-demo.gif)

Repro steps

  1. Run the example
     playground
  2. Update a value
  3. The grid freezes (error in the console)

Expected result

The grid should not freeze, update edited element, and update the aggregate.