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Yield Keyword in VB .Net

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Submitted on: 4/17/2016 7:35:00 AM
By: Salem Al Shekaili 
Level: Beginner
User Rating: Unrated
Compatibility: VB.NET
Views: 1916
 
     The yield keyword was introduced in VB .Net Visual Studio 2013. Yield is a keyword helps in iteration methods. Below is code using it.

 
				Module Module1
Sub Main()
FillValues()
For Each i As Integer In Filter()
Console.WriteLine(i)
Next i
Console.ReadLine()
End Sub
Private MyList As List(Of Integer) = New List(Of Integer)()
Private Sub FillValues()
MyList.Add(1)
MyList.Add(2)
MyList.Add(3)
MyList.Add(4)
MyList.Add(5)
End Sub
Private Iterator Function Filter() As IEnumerable(Of Integer)
For Each i As Integer In MyList
If i > 3 Then 'show number only above 3
Yield i
End If
Next i
End Function
End Module


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