Methods with the [Obsolete] attribute are obsolete and should not be used. Obsolete methods are no longer supported and maintained, may not work correctly, and may be removed in the future.

Replace the method call with a call to a different method. The [Obsolete] attribute should suggest a replacement method to call. If the [Obsolete] attribute does not suggest a replacement, then read the class documentation and list of methods to find a suitable replacement.

The following example shows some code which calls an obsolete method in a Logger class. The Log method has the attribute [Obsolete("Use Log(LogLevel level, string s) instead")] showing that it is obsolete.

The code is fixed by calling a different method in the Logger class as suggested by the attribute.
  • MSDN: ObsoleteAttribute Class.
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