I am not sure what is the exact implementation on your side. But as long as the functionality is as expected for the first page and not for the other pages, then it seems that the collapseRow() method is used improperly. Probably you are passing some incorrect indexes to it. Generally, the row index depends on the absolute index of the item on the page, the pageSize and the current page. For example the index of the third row on the first page when using a pageSize of 10 would be 2 and the index of the third row on the second page when using a pageSize of 10 would be 12.
We have also provided the ExpandDetailsDirective which controls the expanded state of the master details Grids. Please check it at the followin link:
I hope the provided information helps.
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