Repeat(TResult) Method

Enumerable.Repeat<TResult> Method

Generates a sequence that contains one repeated value.

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)

public static IEnumerable<TResult> Repeat<TResult>(
	TResult element,
	int count
)

Type Parameters

TResult

The type of the value to be repeated in the result sequence.

Parameters

element
Type: TResult
The value to be repeated.
count
Type: System.Int32
The number of times to repeat the value in the generated sequence.

Return Value

Type: System.Collections.Generic.IEnumerable<TResult>
An IEnumerable<T> that contains a repeated value.

ExceptionCondition
ArgumentOutOfRangeException

count is less than 0.

This method is implemented by using deferred execution. The immediate return value is an object that stores all the information that is required to perform the action. The query represented by this method is not executed until the object is enumerated either by calling its GetEnumerator method directly or by using foreach in Visual C# or For Each in Visual Basic.

The following code example demonstrates how to use Repeat<TResult> to generate a sequence of a repeated value.


            IEnumerable<string> strings =
                Enumerable.Repeat("I like programming.", 15);

            foreach (String str in strings)
            {
                Console.WriteLine(str);
            }

            /*
             This code produces the following output:

             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
             I like programming.
            */



.NET Framework

Supported in: 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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