How to find available space on a network share folder??

[capriono]

Does anybody know how to get available space on a network share folder programmatically in C#?

So far the solutions that I have seen, require mapping share folders as a drive. Is there any way possible without mapping it?

Thanks in advance.

[Ranthalion]

I have done this before by using an API call to GetDiskFreeSpaceEx. Here's an example. It's in VB.NET, but it should be pretty easy to convert to C#...

'This class contains the functionality and information relating to a drive.
Public Class DriveSpace

    'API function to obtain drive information
    Private Declare Auto Function GetDiskFreeSpaceEx Lib "kernel32.dll" ( _
        ByVal Drive As String, _
        ByRef FreeBytesAvailableToCaller As System.UInt64, _
        ByRef TotalNumberOfBytes As System.UInt64, _
        ByRef TotalNumberOfFreeBytes As System.UInt64) As Integer

    Dim mDriveName As String
    Dim mFreeSpace As Long
    Dim mUsedSpace As Long
    Dim mFreePercent As Double
    Dim mUsedPercent As Double
    Dim mTotalSpace As Long

    'Create a new DriveSpace by passing in the drive name
    Public Sub New(ByVal driveName As String)

        Dim uavailable As System.UInt64
        Dim utotal As System.UInt64
        Dim ufree As System.UInt64

        GetDiskFreeSpaceEx(driveName, uavailable, utotal, ufree)

        mDriveName = driveName
        mFreeSpace = Convert.ToInt64(uavailable) / 1024 / 1024
        mTotalSpace = Convert.ToInt64(utotal) / 1024 / 1024
        mUsedSpace = (mTotalSpace - mFreeSpace)
        mFreePercent = (mFreeSpace / mTotalSpace)
        mUsedPercent = (mUsedSpace / mTotalSpace)
    End Sub

    Public Property DriveName() As String
        Get
            Return mDriveName
        End Get
        Set(ByVal value As String)
            mDriveName = value
        End Set
    End Property

    Public ReadOnly Property FreeSpace() As Long
        Get
            Return mFreeSpace
        End Get
    End Property

    Public ReadOnly Property UsedSpace() As Long
        Get
            Return mUsedSpace
        End Get
    End Property

    Public ReadOnly Property TotalSpace() As Long
        Get
            Return mTotalSpace
        End Get
    End Property

    Public ReadOnly Property FreePercent() As Double
        Get
            Return mFreePercent
        End Get
    End Property

    Public ReadOnly Property UsedPercent() As Double
        Get
            Return mUsedPercent
        End Get
    End Property

End Class

-Ranthalion

[capriono]

Thanks Ranthalion.

But GetDiskFreeSpaceEx method requires a drive name. It does not take a shared path.

My input is something like

\\GlobalShare\Media\Audio\

I want to get free space at this path. i.e. number of bytes that are available for use.


Thanks.

[Ranthalion]

You should be able to send it the path to a shared drive. I am using it in an application that monitors network shares and it is working for paths like \\BillingPC\InvoiceShare$\. Have you tried the code?