Generate Code Metrics Report

Open one project/solution in Visual Studio (Premium) and use the "Analyze > Calculate Code Metrics for Solution" menu item to generate the code metrics report.

Once calculated, the data can be exported to a data sheet for further analysis (e.g. counting the number of methods whose Cyclomatic Complexity is greater than 25).

 

Note:

Cyclomatic complexity (or conditional complexity) is a software metric (measurement). It was developed by Thomas J. McCabe, Sr. in 1976 and is used to indicate the complexity of a program. It directly measures the number of linearly independent paths through a program's source code.
The cyclomatic complexity of a section of source code is the count of the number of linearly independent paths through the source code. For instance, if the source code contained no decision points such as IF statements or FOR loops, the complexity would be 1, since there is only a single path through the code. If the code had a single IF statement containing a single condition there would be two paths through the code, one path where the IF statement is evaluated as TRUE and one path where the IF statement is evaluated as FALSE.