I have installed a Trial version of Telerik Reporting Q1 2008 on my computer.
I created a page and placed a Telerik report viewer control.
All of the samples are working normaly
except:
- Product Catalog Report
- Product Line Sales Report
which have a UI report parameter visible.
The program says:
A critical error has occurred.
Object reference not set to an instance of an object.
Then I created my own Report, added a parameter. It works fine until I set its UI property Visible = True.
Why is this happening?
Can you help me solve this problem?
Thank you very much and best regards.