WebPermission.FromXml Method (SecurityElement)

.NET Framework (current version)

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Reconstructs a WebPermission from an XML encoding.

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

Syntax

C++

public override void FromXml(
	SecurityElement securityElement
)

Parameters

securityElement: Type: System.Security.SecurityElement
The XML encoding from which to reconstruct the WebPermission.

Implements

ISecurityEncodable.FromXml(SecurityElement)

Exceptions

Exception	Condition
ArgumentNullException	The securityElement parameter is null.
ArgumentException	securityElement is not a permission element for this type.

Remarks

The FromXml method reconstructs a WebPermission from an XML encoding that is defined by the SecurityElement class.

Use the ToXml method to XML-encode the WebPermission, including state information.

Examples

The following example creates a System.Security.SecurityElement, populates its attributes, and uses FromXml to transfer this information to an instance of WebPermission.

C++


// Create  a WebPermission without permission on the protected resource.
WebPermission myWebPermission1 = new WebPermission(PermissionState.None);

// Create a SecurityElement by calling the ToXml method on the WebPermission 
// instance and display its attributes (which hold the XML encoding of 
// the WebPermission).
Console.WriteLine("Attributes and Values of the WebPermission are :");
myWebPermission1.ToXml().ToString();

// Create another WebPermission with no permission on the protected resource.
WebPermission myWebPermission2 = new WebPermission(PermissionState.None);

//Converts the new WebPermission from XML using myWebPermission1.
myWebPermission2.FromXml(myWebPermission1.ToXml());

Version Information

.NET Framework
Available since 1.1