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FileIOPermission Constructor (PermissionState)

Initializes a new instance of the FileIOPermission class with fully restricted or unrestricted permission as specified.

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

public FileIOPermission(
	PermissionState state
)

Parameters

state
Type: System.Security.Permissions.PermissionState

One of the PermissionState enumeration values.

ExceptionCondition
ArgumentException

The state parameter is not a valid value of PermissionState.

Creates either fully restricted (None) or Unrestricted access to files and directories.

The following code example creates a new instance of the FileIOPermission class with fully restricted read access.

            FileIOPermission f = new FileIOPermission(PermissionState.None);
            f.AllLocalFiles = FileIOPermissionAccess.Read;
            try
            {
                f.Demand();
            }
            catch (SecurityException s)
            {
                Console.WriteLine(s.Message);
            }

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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