Hi 1) question of performance on visible change I am using the DataGrid for example on a TabItem in a TabControl. Always when i switch back to the tab with the Table it recreates all (visible) rows. Is there a way to suppress the recreation of the rows and just keep the old ones? (the datasource does not change) 2) question of row status ...

Hi,  For the DataGridControl to receive change notifications from the Data Source, the Data Source needs to implement either IBindingList or INotifyCollectionChanged. I also recommend encapsulating the Data Source within a DataGridCollectionView to benefit from several optimizations made ( grouping, sorting, insertion, ... ).  For the ...