how to write query for ExportLogAndMessages in c#?

Question

Hi all,

i am working on wpf application and in this im exportin evtx files using ExportLogAndMessages function using below code

 

EventLogSession logsession = new EventLogSession();

logsession.ExportLogAndMessages(LogName, PathType.LogName, "*", subfolderpath, false, CultureInfo.CurrentCulture);

and it is fetching all the data but now i want to fetch the events only between of selected time period so please tell me how to write query to get event which are created in particular time span.

TIA