Question

How to get the size of Structure in bytes with VB.NET

Answer 1

Imports System
Imports System.Runtime.InteropServices

Structure ExampleStructure
    Public a As Integer ' 4 bytes
    Public b As Double  ' 8 bytes 
End Structure

Public Class Program
    Public Shared Sub Main(ByVal args() As String)
        Dim sizeOfStructure As Integer = Marshal.SizeOf(GetType(ExampleStructure))

        Console.WriteLine(sizeOfStructure)
    End Sub
End Class




' run:
'
' 16
'

 

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Answer 2

Imports System
Imports System.Runtime.InteropServices

Structure ExampleStructure
    Public a As Integer ' 4 bytes
    Public b As Short   ' 2 bytes 
    Public c As String  ' Depends on implementing platform
End Structure

Public Class Program
    Public Shared Sub Main(ByVal args() As String)
        Dim sizeOfStructure As Integer = Marshal.SizeOf(GetType(ExampleStructure))

        Console.WriteLine(sizeOfStructure)
    End Sub
End Class




' run:
'
' 16
'

 

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