Telerik Reporting demos can be found locally (default path is C:\Program Files (x86)\Telerik\Reporting XX XXXX\Examples
for 64bit machines and C:\Program Files\Telerik\Reporting XX XXXX\Examples
for 32bit machines). You can refer to 'Invoice'
demo report to see the sample implementation of master-detail relation.
If you are still experiencing difficulties, please open a support ticket and attach a sample runnable project that reproduces this issue.
Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal
and vote to affect the priority of the items