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Enumerable.Repeat(Of TResult) Method

Generates a sequence that contains one repeated value.

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

'Declaration
Public Shared Function Repeat(Of TResult) ( _
	element As TResult, _
	count As Integer _
) As IEnumerable(Of TResult)

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(Of TResult)
An IEnumerable(Of 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(Of TResult) to generate a sequence of a repeated value.

        ' Repeat the same string to create a sequence. 
        Dim sentences As IEnumerable(Of String) = _
            Enumerable.Repeat("I like programming.", 15)

        Dim output As New System.Text.StringBuilder
        For Each sentence As String In sentences
            output.AppendLine(sentence)
        Next 

        ' Display the output.
        MsgBox(output.ToString())

        ' 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: 4.6, 4.5, 4, 3.5

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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