listgrid foreign key fields sometimes not being resolved

[Segmeno]

SmartClient Version: SNAPSHOT_v8.3d_2012-09-27/PowerEdition Deployment (built 2012-09-27)
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I have a ListGrid with a foreign key field.This field is being resolved correctly by using field.setOptionDataSource().
Now I am changing data of the underlying table and want the grid to be refreshed (to show that data).
So what I do is

grid.invalidateCache();
grid.fetchData()

Problem: When adding a large amount of new data, the foreign key field is not updated correctly anymore. Instead of the displayName I only see the ID.
If I just add a few records and update the grid then, it is being resolved correctly.

Anything I am doing wrong here or a bug?

Thanks!

[Segmeno]

could you please tell me the correct way of refreshing a grid 'manually' when the underlying table data has been changed?

[Segmeno]

Ok, The initial problem seems to be caused by the cache invalidation.
The whole problem can be solved by using the following code for ListGrid refreshing:

grid.setRecords(new ListGridRecord[0]);
grid.fetchData();

Cheers