Specifies the type of file access requested.
This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.Namespace: System.Security.Permissions
Assembly: mscorlib (in mscorlib.dll)
|No access to a file or directory. represents no valid values and causes an ArgumentException when used as the parameter for GetPathList, which expects a single value.|
|Access to read from a file or directory.|
|Access to write to or delete a file or directory. access includes deleting and overwriting files or directories.|
|Access to append material to a file or directory. access includes the ability to create a new file or directory.|
To create files, code must also be granted both and either or access. For more detail see FileMode.
|Access to the information in the path itself. This helps protect sensitive information in the path, such as user names, as well as information about the directory structure revealed in the path. This value does not grant access to files or folders represented by the path.|
For performance reasons, PathDiscovery should only be granted to directories, not to files. For example, PathDiscovery permission should be granted to paths such as C:\test and C:\test\, not C:\test\example.txt.
|, , , and access to a file or directory. represents multiple values and causes an ArgumentException when used as the access parameter for the GetPathList method, which expects a single value.|
This enumeration is used with the FileIOPermission class.
Although and are members of , they are not valid for use as the parameter for GetPathList because they describe no file access types or all file access types, respectively, and GetPathList expects a single file access type.
Giving access to an assembly is similar to granting it Full Trust. If an application should not write to the file system it should not have access.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.