ToXml Method

FileIOPermission.ToXml Method

Creates an XML encoding of the permission and its current state.

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

public override SecurityElement ToXml ()
public SecurityElement ToXml ()
public override function ToXml () : SecurityElement
Not applicable.

Return Value

An XML encoding of the permission, including any state information.

The following code example shows the behavior of the ToXml method. This example is part of a larger example provided for the FileIOPermission class.

NoteNote:

The code example is intended to show the behavior of the method, not to demonstrate its use. In general, the methods of permission classes are used by the security infrastructure; they are not typically used in applications.

private bool ToFromXmlDemo()
{

    bool returnValue = true;

    string fileIO1;
    FileIOPermission fileIOPerm1, fileIOPerm2;

    FileIOGenerator fileIOGen1 = new FileIOGenerator();
    FileIOGenerator fileIOGen2 = new FileIOGenerator();

    fileIOGen1.ResetIndex();
    while (fileIOGen1.CreateFilePath( out fileIO1 ))
    {
        if (fileIO1 == "")
            fileIOPerm1 = new FileIOPermission(PermissionState.None);
        else
            fileIOPerm1 = new FileIOPermission(FileIOPermissionAccess.Read, fileIO1);

        Console.WriteLine("********************************************************\n");
        fileIOGen2.ResetIndex();
        try
        {
            fileIOPerm2 = new FileIOPermission(PermissionState.None);
            fileIOPerm2.FromXml(fileIOPerm1.ToXml());
            Console.WriteLine("Result of ToFromXml = " + fileIOPerm2.ToString() + "\n");

        }
        catch (Exception e)
        {
            Console.WriteLine("ToFromXml failed :" + fileIOPerm1.ToString() + e);
            continue;
        }
    }

    return returnValue;

}

// ToXml creates an XML encoding of the permission and its current state;
// FromXml reconstructs a permission with the specified state from the XML
// encoding.
private boolean ToFromXmlDemo() 
{
    boolean returnValue = true;
    String fileIO1[] = new String[1];
    FileIOPermission fileIOPerm1[] = new FileIOPermission[1];
    FileIOPermission fileIOPerm2[] = new FileIOPermission[1];

    FileIOGenerator fileIOGen1 =  new FileIOGenerator();
    FileIOGenerator fileIOGen2 =  new FileIOGenerator();
    
    fileIOGen1.ResetIndex();
    while(fileIOGen1.CreateFilePath(fileIOPerm1, fileIO1, 
        FileIOPermissionAccess.Read)) {
        if (fileIOPerm1[0] == null) {
            continue ;
        }
        Console.WriteLine("**********************************" 
            + "**********************\n");
        fileIOGen2.ResetIndex();
        try {
            fileIOPerm2[0] = new FileIOPermission(PermissionState.None);
            fileIOPerm2[0].FromXml(fileIOPerm1[0].ToXml());
            Console.WriteLine(("Result of ToFromXml = " 
                + fileIOPerm2[0].ToString() + "\n"));
        } 
        catch(System.Exception  e) {
            Console.WriteLine(("ToFromXml failed :" 
                + fileIOPerm1[0].ToString() + e));
            continue ;
        }
    }
    return returnValue ;
} //ToFromXmlDemo    

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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