I have Crystal Report in VS 2008. The report has group header section above the detail section and group like display in image below:

I have drawn vertical image in detail section but it displays like in following Image:

I also tried to scratched vertical line below the detail section but it in output line goes out of the box like in following Image

How can i solve this issue?
In VS2008 open this report. Select the line and go to Properties Window. There you can reduce the value of Bottom. So your line height will be reduced. Reduce the value of Bottom until the vertical line fits the horizontal line.
Hope this helps you, Leave comments if any !