AssertExtensionAssertTSource(IEnumerableTSource, FuncTSource, Boolean, FuncTSource, Exception) Method
Asserts that all elements of a sequence meet a given condition
otherwise throws an
Exception object.
Namespace: MoreLinq.ExtensionsAssembly: MoreLinq (in MoreLinq.dll) Version: 4.1.0+0e154ef592f33ce0f6f3d534a9eedee273f0ce72
public static IEnumerable<TSource> Assert<TSource>(
this IEnumerable<TSource> source,
Func<TSource, bool> predicate,
Func<TSource, Exception>? errorSelector
)
<ExtensionAttribute>
Public Shared Function Assert(Of TSource) (
source As IEnumerable(Of TSource),
predicate As Func(Of TSource, Boolean),
errorSelector As Func(Of TSource, Exception)
) As IEnumerable(Of TSource)
public:
[ExtensionAttribute]
generic<typename TSource>
static IEnumerable<TSource>^ Assert(
IEnumerable<TSource>^ source,
Func<TSource, bool>^ predicate,
Func<TSource, Exception^>^ errorSelector
)
[<ExtensionAttribute>]
static member Assert :
source : IEnumerable<'TSource> *
predicate : Func<'TSource, bool> *
errorSelector : Func<'TSource, Exception> -> IEnumerable<'TSource>
- source IEnumerableTSource
- Source sequence.
- predicate FuncTSource, Boolean
- Function that asserts an element of the input sequence for a condition.
- errorSelector FuncTSource, Exception
- Function that returns the Exception object to throw.
- TSource
- Type of elements in source sequence.
IEnumerableTSource
Returns the original sequence.
In Visual Basic and C#, you can call this method as an instance method on any object of type
IEnumerableTSource. When you use instance method syntax to call this method, omit the first parameter. For more information, see
Extension Methods (Visual Basic) or
Extension Methods (C# Programming Guide).
This operator uses deferred execution and streams its results.