Contract.Exists Method (Int32, Int32, Predicate(Of Int32))

 
System_CAPS_noteNote

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Determines whether a specified test is true for any integer within a range of integers.

Namespace:   System.Diagnostics.Contracts
Assembly:  mscorlib (in mscorlib.dll)

Public Shared Function Exists (
	fromInclusive As Integer,
	toExclusive As Integer,
	predicate As Predicate(Of Integer)
) As Boolean

Parameters

fromInclusive
Type: System.Int32

The first integer to pass to predicate.

toExclusive
Type: System.Int32

One more than the last integer to pass to predicate.

predicate
Type: System.Predicate(Of Int32)

The function to evaluate for any value of the integer in the specified range.

Return Value

Type: System.Boolean

true if predicate returns true for any integer starting from fromInclusive to toExclusive - 1.

Exception Condition
ArgumentNullException

predicate is null.

ArgumentException

toExclusive is less than fromInclusive.

The toExclusive parameter is one more than the last integer to facilitate using the length of a range of integers starting at 0. For example, it would be set to 5 for integers 0 through 4.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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