CA1505: Avoid unmaintainable code

Cause

A type or method has a low maintainability index value.

Rule Description

The maintainability index is calculated by using the following metrics: lines of code, program volume, and cyclomatic complexity. Program volume is a measure of the difficulty of understanding of a type or method that is based on the number of operators and operands in the code. Cyclomatic complexity is a measure of the structural complexity of the type or method. You can learn more about code metrics at Measuring Complexity and Maintainability of Managed Code.

A low maintainability index indicates that a type or method is probably difficult to maintain and would be a good candidate to redesign.

How to Fix Violations

To fix this violation, redesign the type or method and try to split it into smaller and more focused types or methods.

When to Suppress Warnings

Exclude this warning when a type or method is still considered maintainable despite its large size or when the type or method cannot be split.

See Also

Other Resources

Maintainability Warnings

Measuring Complexity and Maintainability of Managed Code