Kendui grid: remember extended part grids when updating

Possible duplicate:
Remember extended part grids when upgrading in Kendo-UI

I have a script with a grid in a grid implemented using the detailInit method. Here, when the user does the editing, I do some calculations that will change the data for both the parent and the child. and then update the data, I will call datasource.read to visualize the data. this works and the data is displayed, however any extensible part mesh will be collapsed, is there any way to prevent this.