[RESOLVED] [2005] SHFileOperation recycle Bin

[GrimmReaper]

Hello again.
I'm trying to send a file to the recycle bin using the SHFileOperation API :
I declared the API and the SHFILEOPSTRUCT structure like this :

    <DllImport("shell32.dll", EntryPoint:="SHFileOperation", SetLastError:=True, CharSet:=CharSet.Auto)> _
        Private Shared Function SHFileOperation(ByRef lpFileOp As SHFILEOPSTRUCT) As Integer
    End Function

    <StructLayout(LayoutKind.Sequential)> _
Private Structure SHFILEOPSTRUCT
        Public hWnd As Int32
        Public wFunc As Int32
        Public pFrom As String
        Public pTo As String
        Public fFlags As Int16
        Public fAborted As Int32
        Public hNameMaps As Int32
        Public sProgress As String
    End Structure


    Private Const FO_DELETE As Short = &H3S
    Private Const FOF_ALLOWUNDO As Short = &H40S
    Private Const FOF_NOCONFIRMATION As Short = &H10S

    Private SelFileName As String

I load all the files in a list box, like this :

    Private Sub LoadFiles()
        Dim Filename As String
        For Each Filename In Directory.GetFiles(Application.StartupPath)
            ListBox1.Items.Add(Filename)
        Next

    End Sub

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        LoadFiles()
    End Sub

Then, I get the selected file like this :

    Private Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

        SelFileName = ListBox1.SelectedItem.ToString

    End Sub

NOW, I'm trying this :

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        Dim SHop As SHFILEOPSTRUCT

        With SHop
            .wFunc = FO_DELETE
            .pFrom = SelFileName
            .pTo = String.Empty
            .fFlags = FOF_NOCONFIRMATION Or FOF_ALLOWUNDO
            .sProgress = "Sending " & SelFileName & " to the Recycle Bin"
        End With

        Try
            SHFileOperation(SHop)
        Catch ex As Exception
            MessageBox.Show(ex.Message.ToString())
        End Try
    End Sub

What happens is that I get a messagebox that the system cannot delete the file because the it cannot read from source file or disk.

How can I send the file to the recycle bin using this API ?

[Shuja Ali]

Why use SHFileOPeration API when this can be done using a single line of code in 2005.

My.Computer.FileSystem.DeleteFile("C:\myFile.dat", FileIO.UIOption.AllDialogs, FileIO.RecycleOption.SendToRecycleBin, FileIO.UICancelOption.ThrowException)

[GrimmReaper]

Thanx for that! That is quite cool! That works!
But for interest sake, how can I use the API properly, so that I can know both ? You see I learnt about this API in VB 6, so I'm trying to improve on that application.

[Shuja Ali]

There is no need to learn about that API. This is the beauty of .NET 2.0, you don't have to worry about what is happening behind the scenes.

Now for interest sake, the reason why your API is giving an error may be because you have a blank space in the path where the file is present. I have seen that giving a problem sometimes.

[GrimmReaper]

OK, thanx for the advice