EnvironmentPermission.SetPathList(EnvironmentPermissionAccess, String) Method
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Sets the specified access to the specified environment variables to the existing state of the permission.
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)
One of the EnvironmentPermissionAccess values.
- pathList
- String
A list of environment variables (semicolon-separated).
The pathList
parameter is null
.
The flag
parameter is not a valid value of EnvironmentPermissionAccess.
The following code example shows the use of the SetPathList method. This code example is part of a larger example provided for the EnvironmentPermission class.
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
The previous state of the current permission is overwritten.
Produs | Versiuni |
---|---|
.NET | 8 (package-provided), 9 (package-provided) |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1 |
.NET Standard | 2.0 (package-provided) |
Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9 |
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