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Fluent Assertions Documentation
[Root] / FluentAssertions Assembly / FluentAssertions.Collections Namespace / GenericCollectionAssertions<TCollection,T,TAssertions> Class / NotContainItemsAssignableTo Method / NotContainItemsAssignableTo<TExpectation>(String,Object[]) Method
A formatted phrase as is supported by System.String.Format(System.String,System.Object[]) explaining why the assertion is needed. If the phrase does not start with the word because, it is prepended automatically.
Zero or more objects to format using the placeholders in because.
In This Topic
    NotContainItemsAssignableTo<TExpectation>(String,Object[]) Method
    In This Topic
    Asserts that the current collection does not contain any elements that are assignable to the type TExpectation.
    Syntax
    public AndConstraint<TAssertions> NotContainItemsAssignableTo<TExpectation>( 
   string because,
   params object[] becauseArgs
)

    Parameters

    because
    A formatted phrase as is supported by System.String.Format(System.String,System.Object[]) explaining why the assertion is needed. If the phrase does not start with the word because, it is prepended automatically.
    becauseArgs
    Zero or more objects to format using the placeholders in because.

    Type Parameters

    TExpectation
    Supported Frameworks

    .NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

    .NET Standard: netstandard2.0, netstandard2.1.

    .NET Framework: net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

    See Also

    Reference

    GenericCollectionAssertions<TCollection,T,TAssertions> Class
    GenericCollectionAssertions<TCollection,T,TAssertions> Members
    Overload List

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