Activator.CreateInstance creates specified type using that type's default constructor. : Activator « Reflection « VB.Net

1. VB.Net
2. Reflection
3. Activator

Activator.CreateInstance creates specified type using that type's default constructor.

 

Imports System

Class DynamicInstanceList
    Private Shared instanceSpec As String = "System.EventArgs;System.Random;System.Exception;"

    Public Shared Sub Main()
        Dim instances() As String = instanceSpec.Split(";")
        Dim instlist As Array = Array.CreateInstance(GetType(Object), instances.Length)
        Dim item As Object
        For i As Integer = 0 To instances.Length -1
            Console.WriteLine("Creating instance of: {0}", instances(i))
            item = Activator.CreateInstance(Type.GetType(instances(i)))
            instlist.SetValue(item, i)
        Next i
        For Each o As Object In instlist
            Console.WriteLine("Type:     {0}" + vbNewLine + "Value:    {1}" + _
                vbNewLine + "HashCode: {2}" + vbNewLine, _
                o.GetType().FullName, o.ToString(), o.GetHashCode())
        Next o
    End Sub
End Class

   
  

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