strongly-typed Report

- Strongly-typed Report :

When you add a report file into the project, it becomes a ‘strongly-typed’ report. In this case, you will have the advantage of directly creating an instance of the report object, which could reduce a few lines of code, and caching it to improve performance. The related .vb file, which is hidden, can be viewed using the editor’s ‘show all files’ icon in the Solution Explorer.  

- Un-Typed Report :

Those reports that are not included into the project are ‘un-typed’ reports.  In this case, you will have to create an instance of the Crystal Report Engine’s 'ReportDocument' object and manually load the report into it.

Glad i could help

mlmcc