如何使第二个事件在第一个事件之后开始

Question

如何使第二个事件在第一个事件之后开始。 下面是一个代码，用于复制用户为我设置的2个不同路径中的文件。另一方面，它希望在进入下一个路径之前从另一个路径创建第一个副本。

Public Sub StartCopy_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles StartCopy.Click

    ' Reset variables
    _stopped = False
    ' Create the FileCopy class which will initiate the threads
    CopyFiles = New FileCopy
    CopyFiles.FromPath = My.Settings.pathmemfrom1
    CopyFiles.ToPath = My.Settings.pathmemto1

    ' Initiate the copy, count  from the FileCopy class
    CopyFiles.StartCopy()
    WorkingBar.Minimum = 0
    WorkingBar.Maximum = 100
    WorkingLabel.Visible = True
    WorkingBar.Visible = True

    ' Reset form controls
    setting.Panel.Enabled = False
    StopCopy.Enabled = True
    ViewLog.Enabled = True

    CopyFiles.Dispose()


    'Reset veriables
    _stopped = False


    ' Create the FileCopy class which will initiate the threads

    CopyFiles2 = New FileCopy
    CopyFiles2.FromPath = My.Settings.pathmemfrom2
    CopyFiles2.ToPath = My.Settings.pathmemto2

    CopyFiles2.StartCopy()
    WorkingBar.Minimum = 0
    WorkingBar.Maximum = 100
    WorkingLabel.Visible = True
    WorkingBar.Visible = True

    ' Reset form controls

    setting.Panel.Enabled = False
    StopCopy.Enabled = True
    ViewLog.Enabled = True

    CopyFiles2.Dispose()

    'Reset veriables
    _stopped = False