.NET Framework Standard Library Annotated Reference, Volume 1: Base Class Library and Extended Numerics Library

Type Summary

						public sealed class ConditionalAttribute : Attribute
{
  // Constructors
     public ConditionalAttribute (string conditionString);

  // Properties
     public string ConditionString { get; }
}

BA There is a common misconception with usage of this custom attribute. By applying the ConditionalAttribute on a method you indicate that calls to that method should be removed by the compiler if the conditionString is defined. However, the method body is always compiled into the assembly regardless of whether the conditionString is defined or not. BG This is another clever custom attribute, which works similarly to C-style preprocessor directives but in reverse. Calls to methods with this attribute are conditionally compiled into source code, depending ...