I have tested my original demo with 500 results and the cells remain blank as before.
The demo is available at:
The only reason why this may be happening in your scenario, that I can think of is if the value of the cell is the string "null" as opposed to the value of null
. In this case, however, it would be visible in the Kendo UI Grid before exporting which does not seem to be the case.
If you can modify the snippet in a way that it represents your scenario more accurately and exhibits the undesirable behaviour, I would be able to investigate further.
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