使用线程将文件从PC移动到远程设备

Question

使用RAPI2将文件从PC发送到远程设备。

当使用没有Threads的行时，它工作正常：

RemoteFile.CopyFileToDevice(PdtRemoteDevice, "C:sample.txt", "testsample.txt", True)

但是当我尝试将该行放在Thread内时，它会返回设备未连接的错误。

如何使用 RAPI2 的CopyFileToDevice使用线程？

不使用Thread会使应用程序看起来像挂起。因此，我认为用户不会欣赏一个会说没有响应的应用程序。

我的代码：

Imports System.Devices
Imports System.Devices.RemoteDeviceManager
Public Class FormHome
   Dim PdtRemoteDevice As RemoteDevice
   Dim Devicemanager As New RemoteDeviceManager
   Private Sub ButtonHomeCopyToDevice_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonHomeCopyToDevice.Click
      PdtRemoteDevice = Devicemanager.Devices.FirstConnectedDevice
      If PdtRemoteDevice Is Nothing Then
         MessageBox.Show("No Device Connected, Please Try Again")
         Exit Sub
      Else
         Dim Th As Thread
         Th = New Thread(AddressOf UploadDatabase)
         Th.IsBackground = True
         Th.Start()
      End If
   End Sub
   Private Sub UploadDatabase()
      Using PdtRemoteDevice = Devicemanager.Devices.FirstConnectedDevice
         If Not (PdtRemoteDevice Is Nothing) Then
            RemoteFile.CopyFileToDevice(PdtRemoteDevice, "C:sample.txt", "testsample.txt", True)
         End If
      End Using
   End Sub
End Class

Answer 1

试试这个，让我知道它是否有效：

Private Sub UploadDatabase()
    Using rdm As New RemoteDeviceManager
        Using d As RemoteDevice = rdm.Devices.FirstConnectedDevice
            If Not (d Is Nothing) Then
                RemoteFile.CopyFileToDevice( _
                    d, "C:sample.txt", "testsample.txt", True)
            End If
        End Using
    End Using
End Sub

Answer 2

创建一个表单，添加 RAPI2 库作为引用，然后添加两个按钮和以下代码：

Imports System.Devices
Imports System.Devices.RemoteDeviceManager
Imports System.Devices.RemoteDevice
Imports System.Devices.RemoteFile

Public Class Form1
    Dim dev As RemoteDevice
    Dim mgr As New System.Devices.RemoteDeviceManager

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        dev = mgr.Devices.FirstConnectedDevice
        If dev Is Nothing Then
            MsgBox("No device connected")
        Else
            MsgBox("Connected to: " & dev.Name)
        End If
    End Sub
    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        Dim RAPIfile As RemoteFile
        dev = mgr.Devices.FirstConnectedDevice
        Try
            RAPIfile.CopyFileToDevice(dev, "C:temptest1.txt", "ApplicationInventorytest1.txt", True)
        Catch
            MsgBox("error")
        End Try
        RAPIfile = Nothing
    End Sub
End Class