I am having 2 Reports(Main report and Sub report) in same folder. When I opened the main report(using Double click) and rendered the report then sub report working properly. But when i opened the main report inside stand alone designer(Open inside designer) and try to preview it, I am getting error.
We need to provide support for this like check and update the subreport path to subreport process based on the 'openReportClick' event.
sample report - https://www.syncfusion.com/downloads/support/common/3433/ze/subreportinfolder_2cc16f1b.zip