Slow rendering of Grids with no datasource auto fetch data

[preeti_kanyal]

Hi Isomorphic;
My SmartGWT version is: 'v11.0p_2017-02-11/PowerEdition Deployment (built 2017-02-11)'.
My application is using SmartGWT + Spring + Hibernate

We have implemented a list grid where grid is supplied a preExisting list of data using: 'grid.setData(recordList)'.

As the recordList is large , Grid rendering becomes very slow.

As the settings: grid.setDataFetchMode(FetchMode.PAGED);
grid.setDataPageSize(1);

don't work with grids not fetching data automatically from dataSource, Could you please suggest if there is any other setting which can help my grid to render data fast?

[Isomorphic]

Just create a clientOnly DataSource for your grid and apply your recordList to it via setCacheData().

[Isomorphic]

Note however that the grid does not normally become slower just because grid.data has actual records rather than just being a partial cache of records. Your results suggest that you have degraded normal performance in some way, for example, by setting showAllRecords:true or by writing logic of your own that traverses the entire dataset.