my grid has an image in the expanded rows, it does not refresh when image changes, it does refresh after clicking on a close expand button. below is a code sample that updates an image. thanks

List<BaseModel> models = store.getModels();
int row = 0;
for ( DataSetUI d : runInfo ) {
BaseModel g = models.get(row);
Image img = g.get("img");
img.setUrl(imgUrl + "&org=" + d.getOrganismId());
row++;
}