VB.Net program to get the size of a specified folder including a sub-folder

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VB.Net program to get the size of a specified folder including a sub-folder

'Vb.Net program to demonstrate memory stream class.

Imports System.IO
Imports System.Linq

Module Module1
    Function GetSize(ByVal dInfo As DirectoryInfo, ByVal isSubFolder As Boolean) As Long
        Dim sizeInBytes As Long = 0

        sizeInBytes = dInfo.EnumerateFiles().Sum(Function(fi) fi.Length)

        If isSubFolder = True Then
            sizeInBytes += dInfo.EnumerateDirectories().Sum(Function(Dir) GetSize(Dir, True))
        End If
        Return sizeInBytes
    End Function
    
    Sub Main()
        Dim sizeOfDir As Long
        Dim sizeGb As Double

        Dim dInfo As New DirectoryInfo("C:/Intel")
        sizeOfDir = GetSize(dInfo, True)
        sizeGb = (sizeOfDir) / (1024 * 1024 * 1024)

        Console.WriteLine("Size of folder including sub-folder in GB: " & sizeGb)
    End Sub
End Module

Size of folder including sub-folder in GB: 18.12728
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