vb6 to vb.net help needed

Dave Kreskowiak

See my reply to your other post. There's a link to an example of executing a WMI query in there.

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offroaderdan

Thanks for the reply, this has now rely confused me. What would do i simply do something along the lines off Dim instance As ManagementObjectSearcher Dim returnValue As ManagementObjectCollection returnValue = instance.Get() and then something like SELECT SerialNumber FROM Win32_BIOS" ?? i have never really tried anything like this before so its all new to me

offroaderdan

i have tried using the code you said but got this far, how do i fix it?

Imports System
Imports System.Management
Public Class Form1

Private Sub Form1\_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
Public Overloads Shared Function \_
    Main(ByVal args() As String) As Integer

End Function 'Main

Private Sub Button1\_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    Dim s As New ManagementObjectSearcher( \_

        select SerialNumber from Win32\_BIOS""     ' the bit of code you told me to put in it!!
        New EnumerationOptions( \_
        Nothing, System.TimeSpan.MaxValue, 1, \_
        True, False, True, True, False, \_
        True, True))
    For Each service As ManagementObject In s.Get()
            'show the instance
        TextBox1.Text = (service.ToString())
    Next
End Sub

End Class

thanks Dave for the help!! :)

Lost User

something like this

Public Sub q()
    Dim s As New ManagementObjectSearcher( \_
        "root\\MyApp", \_
        "SELECT SerialNumber FROM Win32\_BIOS", \_
        New EnumerationOptions( \_
        Nothing, System.TimeSpan.MaxValue, 1, \_
        True, False, True, True, False, \_
        True, True))
    For Each service As ManagementObject In s.Get()
        'show the instance
        TextBox1.Text = (service.ToString())
    Next
End Sub

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Thomas Krojer

definitly not ... imports ... not in vb6

DaveAuld

Here, Create a new winforms project; Add a reference to System.Management Add 2 List boxes to your form and a button with name to match the code below and Run it.

Imports System.Management

Public Class Form1

Private Sub Form1\_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

    'Enumarate Drives List
    For Each drive As System.IO.DriveInfo In System.IO.DriveInfo.GetDrives
        ListBox1.Items.Add(drive.Name)
    Next

End Sub

Private Sub Button1\_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    If ListBox1.SelectedItems.Count > 0 Then
        ListBox2.Items.Clear()

        'Get the WMI Properties for the Drive and populate the list box
        Dim query As New SelectQuery("Win32\_LogicalDisk")

        'ManagementObjectSearcher retrieves a collection of WMI objects based on the query.
        Dim search As New ManagementObjectSearcher(query)

        ' Display each entry for Win32\_LogicalDisk
        Dim info As ManagementObject
        For Each info In search.Get()
            For Each item As PropertyData In info.Properties
                ListBox2.Items.Add(item.Name & " : " & item.Value)
            Next
        Next
    End If
End Sub

End Class

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modified on Wednesday, October 28, 2009 1:10 PM

offroaderdan · modified on Wednesday, October 28, 2009 1:10 PM

:laugh: :laugh: :laugh: :D works like a treat! However is there any way that i can get drive "C" to appear and in a textbox and have volume serial number of the drive in a txtbox. so it would look something like this text box 1 contents = volume serial "blah blah blah"( number) of "C" I have never really played around with list boxes, i only really know txt boxes and labels!! Many thanks Dave!

DaveAuld

Thats just basic string manipulation. If you can't work that out you shouldn't be trying to mess about with WMI! Also if you look at the documentation for the classes used, you will see it is also possible to query just the single property you want, rather than have to iterate each one. Go try and figure it out, and then come back with what you tried if you have problems. I am not going to do it all for you!

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John M Bundy

I'm not sure where you're headed with what you have, but try here, I downloaded the sample and it worked great. It is in Csharp but that is easy to convert if you need to http://www.eggheadcafe.com/articles/20021019.asp[^]

offroaderdan

ok i had ago with the changing the code around this is how far i got t cant seem to figure it out all i need is if drive "c" contains a volume serial number then that is placed on a text box i had a go at changing For Each drive As System.IO.DriveInfo In System.IO.DriveInfo.GetDrives ListBox1.Items.Add(drive.Name) Next to Dim drive as system.io.driveInfo listbox1.items.add("C:/") this seemed to work however in list box 2 it still displayed 4 drives?? i tried to extract certain bits of data from lit box to textbox, however this didn't work.

If ListBox2.Items.Contains("VolumeSerialNumber" & " : " & item.value) Then
TextBox1.Text = "VolumeSerialNumber" & " : " & item.value
End If

Is there any way that with each drive a list box can be dedicated to that drive rather than having a massive list? Many thanks