ROSLYN.PERFORMANCE.CA1819 : Properties should not return arrays (C#)

JavaScript is not currently enabled, but is required for full CodeSonar manual search and browse functionality.

If you are viewing this file in your hub's Web GUI, enable JavaScript in your browser: you will also need it for GUI functionality.

If you opened this file directly from disk, your browser may be directly suppressing JavaScript functionality: certain browsers perform this suppression on local files (but not files delivered by web servers) for security reasons.

If you access the manual through the hub's Web GUI, the functionality will not be suppressed because the hub is a web server.
Alternatively, your browser may allow you to explicitly disable the security setting that suppresses functionality. See the CodeSonar FAQ for more information.

CodeSonar^® 9.2p0

CONFIDENTIAL

CodeSecure Inc

ROSLYN.PERFORMANCE.CA1819 : Properties should not return arrays (C#)

Summary

Arrays that are returned by properties are not write-protected, even when the property is read-only. To keep the array tamper-proof, the property must return a copy of the array. Typically, users will not understand the adverse performance implications of calling such a property.

This check corresponds to Roslyn rule CA1819. For full rule details, see the Microsoft website: CA1819.

Properties

Class Name	Properties should not return arrays (C#)
Significance	reliability
Mnemonic	ROSLYN.PERFORMANCE.CA1819
Categories	None
Availability	Available for C# only.
Enabling	Checks for this warning class are disabled by default. To enable them, add the following WARNING_FILTER rule to the project configuration file. WARNING_FILTER += allow class="Properties should not return arrays (C#)"

Relevant Configuration File Parameters

The following configuration file parameters affect checks for this warning class.