This documentation is archived and is not being maintained.

XmlSecureResolver Constructor (XmlResolver, PermissionSet)

Initializes a new instance of the XmlSecureResolver class with the XmlResolver and System.Security.PermissionSet specified.

Namespace:  System.Xml
Assembly:  System.Xml (in System.Xml.dll)

public XmlSecureResolver(
	XmlResolver resolver,
	PermissionSet permissionSet


Type: System.Xml.XmlResolver
The XmlResolver wrapped by the XmlSecureResolver.
Type: System.Security.PermissionSet
The System.Security.PermissionSet to apply to the underlying XmlResolver. The XmlSecureResolver calls PermissionSet.PermitOnly on the PermissionSet before calling GetEntity on the underlying XmlResolver.

The following example constructs an XmlSecureResolver object using a customized permission set.

public static Object GetFile (String fileURL, XmlResolver resolver) {

  // Generate the default PermissionSet using the file URL.
  Evidence evidence = XmlSecureResolver.CreateEvidenceForUrl(fileURL);
  PermissionSet myPermissions = SecurityManager.ResolvePolicy(evidence);

  // Modify the PermissionSet to only allow access to
  // Create a WebPermission which only allows access to
  WebPermission myWebPermission = new WebPermission(NetworkAccess.Connect, "");
  // Replace the existing WebPermission in myPermissions with the updated WebPermission.

  // Use the modified PermissionSet to construct the XmlSecureResolver.
  XmlSecureResolver sResolver = new XmlSecureResolver(resolver, myPermissions);

  // Get the object.
  Uri fullUri = sResolver.ResolveUri(null, fileURL);
  return sResolver.GetEntity(fullUri, null, null);

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.