StrongNameIdentityPermission::FromXml Method (SecurityElement^)

.NET Framework (current version)

Reconstructs a permission with a specified state from an XML encoding.

Namespace: System.Security.Permissions
Assembly: mscorlib (in mscorlib.dll)

Syntax

public:
virtual void FromXml(
	SecurityElement^ e
) override

Parameters

e: Type: System.Security::SecurityElement^
The XML encoding to use to reconstruct the permission.

Implements

ISecurityEncodable::FromXml(SecurityElement^)

Exceptions

Exception	Condition
ArgumentNullException	The e parameter is null.
ArgumentException	The e parameter is not a valid permission element. -or- The e parameter's version number is not valid.

Remarks

This method is not used by application code.

The following code example shows the behavior of the FromXml method. This example is part of a larger example provided for the StrongNameIdentityPermission class. The best use for this example is to build and execute the entire example, and view its output.

Note
The code example is intended to show the behavior of the method, not to demonstrate its use. In general, the methods of permission classes are used by the security infrastructure; they are not typically used in applications.

C++

    // ToXml creates an XML encoding of the permission and its current state;
    //FromXml reconstructs a permission with the specified state from the XML encoding.
    bool ToFromXmlDemo()
    {
        bool returnValue = true;
        StrongNameIdentityPermission^ snIdPerm1;
        StrongNameIdentityPermission^ snIdPerm2;
        snIdPerm1 = gcnew StrongNameIdentityPermission(blob, "MyCompany.MyDepartment.*", gcnew Version("1.0.0.0"));    
        snIdPerm2 = gcnew StrongNameIdentityPermission(PermissionState::None);
        snIdPerm2->FromXml(snIdPerm1->ToXml());
        Console::WriteLine("Result of ToFromXml = " + snIdPerm2->ToString() + "\n");

        return returnValue;
    }


public:

Version Information

.NET Framework
Available since 1.1