C++Builder的bug
修改一行代码，F9会报错。要clear工程重新完整编译才可以。
新建空白工程是好的。
restart computer ok!!!
2)fdquery like this,fdquery->First() raise error.
fdquery->Last() error
fdquery->Next() ok
it from datasource->Dataset cast
object FDQuery1: TFDQuery
Connection = FDConnection1
FetchOptions.AssignedValues = [evMode, evAutoClose]
FetchOptions.AutoClose = False
ResourceOptions.AssignedValues = [rvDirectExecute]
ResourceOptions.DirectExecute = True
Left = 441
Top = 424
end
EhLib240.@Dbgrideh@TCustomDBGridEh@UpdateRowPosFromDatasetPos$qqrv
2016.5.19 00:00:00 compare dfm file, find problem,dbgrideh component has two property,delete these 2 property ,that all is ok!!!
DataGrouping.Active = True
DataGrouping.GroupPanelVisible = True