MoreEnumerableAssertTSource(IEnumerableTSource, FuncTSource, Boolean, FuncTSource, Exception) Method

Asserts that all elements of a sequence meet a given condition otherwise throws an Exception object.

Definition

Namespace: MoreLinq
Assembly: MoreLinq (in MoreLinq.dll) Version: 3.4.0+b99a6a8cc504caf2d48372fe54a2f8116c59cd0c
C#
public static IEnumerable<TSource> Assert<TSource>(
	this IEnumerable<TSource> source,
	Func<TSource, bool> predicate,
	Func<TSource, Exception>? errorSelector
)

Parameters

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.

Type Parameters

TSource
Type of elements in source sequence.

Return Value

IEnumerableTSource
Returns the original sequence.

Usage Note

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).

Remarks

This operator uses deferred execution and streams its results.

See Also