Question

我正在尝试创建一个程序，我可以保存自己的文件，并在打开程序时输入密码。一旦我输入密码，我就可以访问，进行更改，并打开我选择放入的文件。关于我如何做到这一点的任何想法或链接？任何帮助是极大的赞赏。我试过这个，但是我得到了UnauthorizedAccessException。当它到达时我得到它：对于每个mDirectory As IO.DirectoryInfo in TreeView1_BeforeExpand中的mNodeDirectory.GetDirectories

                  Private mRootPath As String = "C:\Users"
Property RootPath As String
    Get
        Return mRootPath
    End Get
    Set(ByVal value As String)
        mRootPath = value
    End Set
End Property

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    Dim mRootNode As New TreeNode
    mRootNode.Text = RootPath
    mRootNode.Tag = RootPath
    mRootNode.Nodes.Add("*DUMMY*")
    TreeView1.Nodes.Add(mRootNode)
End Sub

Private Sub TreeView1_BeforeCollapse(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewCancelEventArgs) Handles TreeView1.BeforeCollapse
    ' clear the node that is being collapsed
    e.Node.Nodes.Clear()
    ' add a dummy TreeNode to the node being collapsed so it is expandable
    e.Node.Nodes.Add("*DUMMY*")
End Sub

Private Sub TreeView1_BeforeExpand(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewCancelEventArgs) Handles TreeView1.BeforeExpand
    ' clear the expanding node so we can re-populate it, or else we end up with duplicate nodes
    e.Node.Nodes.Clear()
    ' get the directory representing this node
    Dim mNodeDirectory As IO.DirectoryInfo
    mNodeDirectory = New System.IO.DirectoryInfo(e.Node.Tag.ToString)
    ' add each subdirectory from the file system to the expanding node as a child node
    For Each mDirectory As IO.DirectoryInfo In mNodeDirectory.GetDirectories
        ' declare a child TreeNode for the next subdirectory
        Dim mDirectoryNode As New TreeNode
        ' store the full path to this directory in the child TreeNode's Tag property
        mDirectoryNode.Tag = mDirectory.FullName
        ' set the child TreeNodes's display text
        mDirectoryNode.Text = mDirectory.Name
        ' add a dummy TreeNode to this child TreeNode to make it expandable
        mDirectoryNode.Nodes.Add("*DUMMY*")
        ' add this child TreeNode to the expanding TreeNode
        e.Node.Nodes.Add(mDirectoryNode)
    Next
End Sub

结束班

顺便说一下，我没有写上面的代码，我尝试了一下我找到的链接

Answer 1

您是否可能没有管理权限？

也许您应该尝试不同的mRootPath 将文件夹添加到c：\ Users需要管理员权限。

Answer 2

要授予您的应用程序管理员权限，请先进入项目的属性，然后单击View Windows Settings选项卡中的Application按钮。将现有requestedExecutionLevel代码替换为<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />。

如何创建自己的Windows资源管理器

2 个答案: