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FromXml Method

WebPermission.FromXml Method

Reconstructs a WebPermission from an XML encoding.

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

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)

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 = 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());

.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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