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WebPermission::FromXml Method

Reconstructs a WebPermission from an XML encoding.

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

public:
virtual void FromXml(
	SecurityElement^ securityElement
) override

Parameters

securityElement
Type: System.Security::SecurityElement

The XML encoding from which to reconstruct the WebPermission.

Implements

ISecurityEncodable::FromXml(SecurityElement)

ExceptionCondition
ArgumentNullException

The securityElement parameter is null.

ArgumentException

securityElement is not a permission element for this type.

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.

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

// Create  a WebPermission without permission on the protected resource
WebPermission^ myWebPermission1 = gcnew 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();

// Create another WebPermission with no permission on the protected resource
WebPermission^ myWebPermission2 = gcnew WebPermission( PermissionState::None );

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

.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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