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how-constructor-is-selected.md

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How constructor is selected

When deciding which constructor to invoke in order to instantiate a component, Windsor will use the following strategy.

  • It will look at the component's constructors and see which of them it can satisfy (for which of them it can provide all required parameters).
  • It will then see how many parameters each satisfiable constructor has, and pick the one with most parameters (the greediest one).
  • If there is more than one greediest constructor, it will use any of them. It is undefined which one and you should not depend on Windsor always picking the same.
  • (As of Windsor 3.2.x) If the attribute Castle.Core.DoNotSelectAttribute is applied to a constructor, it will not be selected, notwithstanding any other criteria.

See also