CA2216Usage Enabled by default: No

Disposable types should declare finalizer

Description

A violation of this rule is reported if the disposable type contains fields of the following types:

System.IntPtr

System.UIntPtr

System.Runtime.InteropServices.HandleRef

Cause

A type that implements System.IDisposable, and has fields that suggest the use of unmanaged resources, does not implement a finalizer as described by System.Object.Finalize.

How to fix violations

To fix a violation of this rule, implement a finalizer that calls your System.IDisposable.Dispose method.

Example

#pragma warning disable CA2216
// The code that's violating the rule is on this line.
#pragma warning restore CA2216

When to suppress

It is safe to suppress a warning from this rule if the type does not implement System.IDisposable for the purpose of releasing unmanaged resources.

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