How to pick a random value from a dictionary in VB.NET

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Imports System
Imports System.Collections.Generic

Class Program
    Private Shared Function GetRandomValue(ByVal inputMap As Dictionary(Of Integer, String)) As String
        Dim values As List(Of String) = New List(Of String)(inputMap.Values)

		Dim random As Random = New Random()
        Dim index As Integer = random.Next(values.Count)

        Return values(index)
    End Function

    Public Shared Sub Main()
        Dim myMap As Dictionary(Of Integer, String) = New Dictionary(Of Integer, String)() From {
            {1, "C++"},
            {2, "C"},
            {3, "Java"},
            {4, "C#"},
            {5, "Rust"},
		    {6, "VB.NET"},
            {7, "Python"}
        }

        Dim randomValue As String = GetRandomValue(myMap)

        Console.WriteLine("Random value: " & randomValue)
    End Sub
End Class



' run:
'
' Random value: Java
'

 



answered Jul 16, 2025 by avibootz

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