GridStyleInfoStore.TagProperty.IsCloneable = false; GridStyleInfoStore.TagProperty.IsDisposable = false;so the grid would be using references to your tag object and not cloning them everytime that are used. Another option might be to keep the custom style, but try using the OneTimeQueryCell info call technique discussed in this forum thread. (I have not tried this technique with custom styles, so I do not know if there is something I am overlooking that might be a problem.) http://www.syncfusion.com/Support/Forums/message.aspx?MessageID=17783. There are likely other options to try, but I think using the Tag would be the simplest to implement and maintain.
Syncfusion\Essential Suite\126.96.36.199\Grid\Src\Base\Model\GridVolatileData.cs(33): public interface IGridVolatileData : IGridDataI think it was in 188.8.131.52, but may not have been in earlier versions.