plotly / dash-table-experiments

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scrolling using keyboard through large dataset #14

Open antonbakh opened 6 years ago

antonbakh commented 6 years ago

I used first example from the Upload tutorial where CSV file cab be uploaded, parsed and displayed back using DataTable. Used a CSV with some 83000 records. DataTable comes back and displays the content. Then click inside the table (any cell really) and try continuously scroll using keyboard (down arrow or PgDown). DataTable scrolls for a few pages and then stops. Clicking inside table and try scroll again - same behaviour, a few pages ok then stops. Scrolling on small datasets works fine. Using Python 2.7. Chrome latest version. On IE and Firefox both small and large datasets scrolled fine using up and down arrows, but PgUp/PgDown has same issue as on Chrome - focus moves out of table to the overall page.
Also on IE, when scrolling using vertical slider of the table, it would stop rendering data when moving slider too fast, that works fine on Chrome.