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DnsPermission.ToXml Method

Creates an XML encoding of a DnsPermission instance and its current state.

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

public override SecurityElement ToXml()

Return Value

Type: System.Security.SecurityElement
A SecurityElement instance that contains an XML-encoded representation of the security object, including state information.

Implements

ISecurityEncodable.ToXml()

The ToXml method creates a SecurityElement instance to XML-encode a representation of the DnsPermission instance, including state information.

Use the FromXml method to restore the state information from a SecurityElement instance.

The following example creates an XML encoding of a DnsPermission instance.

public void useDns() {

   // Create a DnsPermission instance.
   DnsPermission permission = new DnsPermission(PermissionState.Unrestricted);

   // Check for permission.
   permission.Demand();
   // Create a SecurityElement object to hold XML encoding of the DnsPermission instance.
   SecurityElement securityElementObj = permission.ToXml();    
   Console.WriteLine("Tag, Attributes and Values of 'DnsPermission' instance :");
   Console.WriteLine("\n\tTag :" + securityElementObj.Tag);
   // Print the attributes and values.
   PrintKeysAndValues(securityElementObj.Attributes);
}

private void PrintKeysAndValues(Hashtable myList) {
   // Get the enumerator that can iterate through the hash table.
   IDictionaryEnumerator myEnumerator = myList.GetEnumerator();
   Console.WriteLine("\n\t-KEY-\t-VALUE-");
   while (myEnumerator.MoveNext())
      Console.WriteLine("\t{0}:\t{1}", myEnumerator.Key, myEnumerator.Value);
   Console.WriteLine();
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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