Question

SEE BOTTOM OF THIS POST FOR UPDATE ON THIS PLEASE.

I have the below code that searches through directories and displays the largest file in the directory. the problem is that it displays it in KB – how on earth do I convert it to MB? The file size comes out way too large so want easier reading – thanks for the help:

Private Sub btnGetMax_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGetMax.Click
    ClearList()

    Dim dblSize As Integer = 0
    Dim dblMax As Integer = 0
    Dim strMax As String = ""

    Dim objFileInfo As System.IO.FileInfo

    For Each strFile As String In My.Computer.FileSystem.GetFiles("c:\temp", FileIO.SearchOption.SearchAllSubDirectories)

        objFileInfo = My.Computer.FileSystem.GetFileInfo(strFile)
        /*whats the size of the files?*/
        dblSize = objFileInfo.Length

        If dblSize > dblMax Then
            dblMax = dblSize
            strMax = objFileInfo.FullName
        End If
    Next

    MessageBox.Show("Largest file in .Net folder is " & vbCrLf &
                    strMax & vbCrLf &
                    dblMax.ToString("N0"))
End Sub

SHOULD HAVE MADE MYSELF MORE CLEAR! I KNOW HOW TO CONVERT KB TO MB BUT NO IDEA HOW I INCORPORATE THAT INTO MY CODE – DO I ADD ANOTHER VARIABLE FOR STRMAX AS /1024…..EXCEPT I ALREADY HAVE STRMAX VARIABLE…..STILL VERY MUCH A BEGINNER GUYS.

I know how to convert KB to MB – the problem is how do I incorporate that into my code? Do I add another variable

Answer 1

(Sorry for the previous answer with 1024, a mistaken assumption)

To your question of converting from kB to MB, you can surely assume by SI standard:

1 MB = 1000 kB

Ergo, divide by 1000.

For the unconvinced, I encourage you to read this.

Since software like Microsoft Windows expresses storage quantities in multiples of 1024 bytes, change your code to:

  dblMax = dblMax/(1024*1024)  

  MessageBox.Show("Largest file in .Net folder is " & vbCrLf &
  strMax & vbCrLf &
  dblMax.ToString("N0"))

(since you are printing dblMax & your file size is in bytes, not kB)