EnvironmentPermission.SetPathList(EnvironmentPermissionAccess, String) Yöntem

Tanım

Ad Alanı:

System.Security.Permissions

Bütünleştirilmiş Kod:

System.Security.Permissions.dll

Bütünleştirilmiş Kod:

mscorlib.dll

Belirtilen ortam değişkenlerine belirtilen erişimi iznin mevcut durumuna ayarlar.

public:
 void SetPathList(System::Security::Permissions::EnvironmentPermissionAccess flag, System::String ^ pathList);

public void SetPathList (System.Security.Permissions.EnvironmentPermissionAccess flag, string pathList);

member this.SetPathList : System.Security.Permissions.EnvironmentPermissionAccess * string -> unit

Public Sub SetPathList (flag As EnvironmentPermissionAccess, pathList As String)

Parametreler

flag

EnvironmentPermissionAccess

Değerlerden EnvironmentPermissionAccess biri.

pathList

String

Ortam değişkenlerinin listesi (noktalı virgülle ayrılmış).

Özel durumlar

ArgumentNullException

pathList parametresidirnull.

ArgumentException

flag parametresi geçerli bir değeri EnvironmentPermissionAccessdeğildir.

Örnekler

Aşağıdaki kod örneği yönteminin SetPathList kullanımını gösterir. Bu kod örneği, sınıfı için EnvironmentPermission sağlanan daha büyük bir örneğin parçasıdır.

private bool SetGetPathListDemo()
{
    try
    {
        Console.WriteLine("********************************************************\n");
        Console.WriteLine("Creating an EnvironmentPermission with AllAccess rights for 'TMP'");
        EnvironmentPermission envPerm1 = new EnvironmentPermission(EnvironmentPermissionAccess.AllAccess, "TMP");
        Console.WriteLine("Adding 'TEMP' to the write access list, and 'windir' to the read access list.");
        envPerm1.AddPathList(EnvironmentPermissionAccess.Write, "TEMP");
        envPerm1.AddPathList(EnvironmentPermissionAccess.Read, "windir");
        Console.WriteLine("Read access list before SetPathList = "
            + envPerm1.GetPathList(EnvironmentPermissionAccess.Read));
        Console.WriteLine("Setting read access to 'TMP'");
        envPerm1.SetPathList(EnvironmentPermissionAccess.Read, "TMP");
        Console.WriteLine("Read access list after SetPathList = "
            + envPerm1.GetPathList(EnvironmentPermissionAccess.Read));
        Console.WriteLine("Write access list = " + envPerm1.GetPathList(EnvironmentPermissionAccess.Write));
        Console.WriteLine("Write access environment variables = "
            + envPerm1.GetPathList(EnvironmentPermissionAccess.AllAccess));
    }
    catch (ArgumentException e)
    {
        // EnvironmentPermissionAccess.AllAccess cannot be used as a parameter for GetPathList.
        Console.WriteLine("An ArgumentException occurred as a result of using AllAccess. "
            + " This property cannot be used as a parameter in GetPathList, because it represents "
            + "more than one type of environment variable : \n" + e);
    }

    return true;
}

Private Function SetGetPathListDemo() As Boolean 
    Try
        Console.WriteLine("********************************************************" + vbLf)
        Console.WriteLine("Creating an EnvironmentPermission with AllAccess rights for 'TMP'")
        Dim envPerm1 As New EnvironmentPermission(EnvironmentPermissionAccess.AllAccess, "TMP")
        Console.WriteLine("Adding 'TEMP' to the write access list, and 'windir' to the read access list.")
        envPerm1.AddPathList(EnvironmentPermissionAccess.Write, "TEMP")
        envPerm1.AddPathList(EnvironmentPermissionAccess.Read, "windir")
        Console.WriteLine("Read access list before SetPathList = " + envPerm1.GetPathList(EnvironmentPermissionAccess.Read))
        Console.WriteLine("Setting read access to 'TMP'")
        envPerm1.SetPathList(EnvironmentPermissionAccess.Read, "TMP")
        Console.WriteLine("Read access list after SetPathList = " + envPerm1.GetPathList(EnvironmentPermissionAccess.Read))
        Console.WriteLine("Write access list = " + envPerm1.GetPathList(EnvironmentPermissionAccess.Write))
        Console.WriteLine("Write access environment variables = " + envPerm1.GetPathList(EnvironmentPermissionAccess.AllAccess))
    Catch e As ArgumentException
        ' EnvironmentPermissionAccess.AllAccess cannot be used as a parameter for GetPathList.
        Console.WriteLine("An ArgumentException occurred as a result of using AllAccess. " + _
        " This property cannot be used as a parameter in GetPathList, because it represents " + _
        "more than one type of environment variable : " + vbLf + e.Message)
    End Try
    
    Return True

End Function 'SetGetPathListDemo

Açıklamalar

Geçerli iznin önceki durumunun üzerine yazılır.