Question

我需要将访问控制设置为文件夹

我的代码是

 Private Sub cmdApplyRestrictions_Click(sender As Object, e As EventArgs) Handles cmdApplyRestrictions.Click
    Dim myDirectoryInfo As New DirectoryInfo(txtFolder.Text)

    Dim myDirectorySecurity As DirectorySecurity = myDirectoryInfo.GetAccessControl()
    Dim User As String = System.Environment.UserDomainName + "\" + cmbUser.SelectedItem.ToString()

    myDirectorySecurity.AddAccessRule(New FileSystemAccessRule(User, FileSystemRights.Read, AccessControlType.Deny))
    myDirectoryInfo.SetAccessControl(myDirectorySecurity)
    MessageBox.Show("Permissions Altered Successfully")

End Sub

行

myDirectoryInfo.SetAccessControl(myDirectorySecurity)

将异常视为

mscorlib.dll中出现未处理的“System.UnauthorizedAccessException”类型异常

我以具有管理权限但不是管理员本身的用户身份登录我需要阻止访问所有用户，包括登录用户以及包括管理员在内的所有用户

稍后当我的程序结束时，我将恢复权限

还有一个要求是我希望授予对此文件夹一个外部程序的访问权限

Answer 1

您需要使用提升的权限执行您的应用。

使用以下内容向您的应用添加app.manifest文件：

<?xml version="1.0" encoding="utf-8"?>
<asmv1:assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <assemblyIdentity version="1.0.0.0" name="MyApplication.app"/>
  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
    <security>
      <requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
        <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
      </requestedPrivileges>
    </security>
  </trustInfo>
</asmv1:assembly>

SetAccessControl给出错误，因为mscorlib.dll中发生了'System.UnauthorizedAccessException'类型的未处理异常

1 个答案: