StrongNameIdentityPermission.FromXml Method (SecurityElement)

 

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

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

public override void FromXml(
	SecurityElement e
)

Parameters

e
Type: System.Security.SecurityElement

The XML encoding to use to reconstruct the permission.

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.

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.

System_CAPS_noteNote

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.

// ToXml creates an XML encoding of the permission and its current state;
//FromXml reconstructs a permission with the specified state from the XML encoding.
private bool ToFromXmlDemo()
{

    bool returnValue = true;

    StrongNameIdentityPermission snIdPerm1, snIdPerm2;

    snIdPerm1 = new StrongNameIdentityPermission(blob, "MyCompany.MyDepartment.*", new Version("1.0.0.0"));    
    snIdPerm2 = new StrongNameIdentityPermission(PermissionState.None);
    snIdPerm2.FromXml(snIdPerm1.ToXml());
    Console.WriteLine("Result of ToFromXml = " + snIdPerm2.ToString() + "\n");

    return returnValue;

}

.NET Framework
Available since 1.1
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