The InstanceReportSource ('Object instance' option) is not recommended for usage. It will create an instance of the sub report in the main report's list of elements.
In any case, please check the following settings:
- The sub reports - they must have a default parameterless constructor;
- The solution - test to rebuild the whole solution to get new types loaded;
The recommended light-weighted approach is to use the TypeReportSource ('Type name' option). The reporting engine will create an instance of the selected report at run-time through System.Reflection
and the report class' default constructor.
Let us know if you need further help.
Telerik by Progress
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?
Telerik Feedback Portal
and vote to affect the priority of the items