RegistryPermission.GetPathList Method (RegistryPermissionAccess)

 

Gets paths for all registry variables with the specified RegistryPermissionAccess.

Namespace:   System.Security.Permissions
Assembly:  mscorlib (in mscorlib.dll)

Public Function GetPathList (
	access As RegistryPermissionAccess
) As String

Parameters

access
Type: System.Security.Permissions.RegistryPermissionAccess

One of the RegistryPermissionAccess values that represents a single type of registry variable access.

Return Value

Type: System.String

A list of the registry variables (semicolon-separated) with the specified RegistryPermissionAccess.

Exception Condition
ArgumentException

access is not a valid value of RegistryPermissionAccess.

-or-

access is AllAccess, which represents more than one type of registry variable access, or NoAccess, which does not represent any type of registry variable access.

Use this method to get the state of the current permission. You must call this method separately for each type of access.

System_CAPS_noteNote

The access parameter is limited to the values of RegistryPermissionAccess, which represent single types of registry variable access. Those values are Read, Write, and Create. The values acceptable to access do not include NoAccess and AllAccess, which do not represent single types of registry variable access.

The following code example shows the use of the GetPathList method.

' AddPathList adds access for the specified registry variables to the existing state of the permission.
' SetPathList sets new access for the specified registry variable names to the existing state of the permission.
' GetPathList gets paths for all registry variables with the specified RegistryPermissionAccess.
Private Shared Function SetGetPathListDemo() As Boolean
    Try
        Console.WriteLine("********************************************************" + vbLf)
        Dim readPerm1 As RegistryPermission
        Console.WriteLine("Creating RegistryPermission with AllAccess rights for 'HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0'")
        readPerm1 = New RegistryPermission(RegistryPermissionAccess.AllAccess, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0")
        Console.WriteLine("Adding 'HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION' to the write access list, " + "and " + vbLf + " 'HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\0' " + "to the read access list.")
        readPerm1.AddPathList(RegistryPermissionAccess.Write, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION")
        readPerm1.AddPathList(RegistryPermissionAccess.Read, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\FloatingPointProcessor\0")
        Console.WriteLine("Read access list before SetPathList = " + readPerm1.GetPathList(RegistryPermissionAccess.Read))
        Console.WriteLine("Setting read access rights to " + vbLf + "'HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0'")
        readPerm1.SetPathList(RegistryPermissionAccess.Read, "HKEY_LOCAL_MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0")
        Console.WriteLine("Read access list after SetPathList = " + vbLf + readPerm1.GetPathList(RegistryPermissionAccess.Read))
        Console.WriteLine("Write access = " + vbLf + readPerm1.GetPathList(RegistryPermissionAccess.Write))
        Console.WriteLine("Write access Registry variables = " + vbLf + readPerm1.GetPathList(RegistryPermissionAccess.AllAccess))
    Catch e As ArgumentException
        ' RegistryPermissionAccess.AllAccess can not be used as a parameter for GetPathList.
        Console.WriteLine("An ArgumentException occured as a result of using AllAccess. " + _
        "AllAccess cannot be used as a parameter in GetPathList because it represents more than one " + _
        "type of registry variable access : " + vbLf + e.Message)
    End Try

    Return True

End Function 'SetGetPathListDemo

.NET Framework
Available since 1.1
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