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FileIOPermission.AddPathList Method (FileIOPermissionAccess, String)

 

Adds access for the specified file or directory to the existing state of the permission.

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

public void AddPathList(
	FileIOPermissionAccess access,
	string path
)

Parameters

access
Type: System.Security.Permissions.FileIOPermissionAccess

A bitwise combination of the FileIOPermissionAccess values.

path
Type: System.String

The absolute path of a file or directory.

Exception Condition
ArgumentException

The access parameter is not a valid value of FileIOPermissionAccess.

-or-

The path parameter is not a valid string.

-or-

The path parameter did not specify the absolute path to the file or directory.

ArgumentNullException

The path parameter is null.

NotSupportedException

The path parameter has an invalid format.

Use this method to modify file and directory access by adding to the state of the current permission.

The following code example shows the use of the FileIOPermission.AddPathList(FileIOPermissionAccess, String) method.

FileIOPermission f2 = new FileIOPermission(FileIOPermissionAccess.Read, "C:\\test_r");
f2.AddPathList(FileIOPermissionAccess.Write | FileIOPermissionAccess.Read, "C:\\example\\out.txt");
try
{
    f2.Demand();
}
catch (SecurityException s)
{
    Console.WriteLine(s.Message);
}

.NET Framework
Available since 1.1
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