In the DataGridRowAdapter from another cell onPressed event, we can find another underline data object's property value
writing for example
String appId = row.getCells().firstWhereOrNull((element) => element.columnName =="AppId")?.value;
But we need to add the GridCell in the GridSource's collection and in the Grid Columns as first Column with visible: false.
Is there any other way, more simpler, to access the data object referenced from the DataGridSource ?