vb.net便携式设备问题 [英] vb.net portable device question

问题描述

伙计们感谢您的时间和帮助我有这个代码获取名称

便携式设备

guys thanks for time and help i have this code for get name of the
Portable Devices

when i have a portable devices connected to the pc works fine but when i disconnected the portables devices i get this error: index was outside the bounds of the array.

这个错误发生在代码的粗线上



下一个代码：

this error occurs in the bold line of the code

next the code:

Imports System.Collections.ObjectModel
Imports PortableDeviceApiLib

Namespace PortableDevices
    Public Class PortableDeviceCollection
        Inherits Collection(Of PortableDevice)
        Private ReadOnly _deviceManager As PortableDeviceManager
        Public Sub New()
            Me._deviceManager = New PortableDeviceManager()
        End Sub
        Public Sub Refresh()
            Me._deviceManager.RefreshDeviceList()
            Dim deviceIds = New String(0) {}
            Dim count_Renamed As UInteger = 1
            Me._deviceManager.GetDevices(deviceIds(0), count_Renamed)
            deviceIds = New String(count_Renamed - 1) {}
            Me._deviceManager.GetDevices(deviceIds(0), count_Renamed)
            For Each deviceId In deviceIds
                Add(New PortableDevice(deviceId))
            Next deviceId
        End Sub
    End Class
End Namespace

< br $> b $ b





如何解决这个问题？

how i can fix this?

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