GacMembershipCondition.FromXml Method

Definition

Namespace:

System.Security.Policy

Assembly:

System.Security.Permissions.dll

Uses the specified XML encoding to reconstruct a security object.

Overloads

FromXml(SecurityElement)	Uses the specified XML encoding to reconstruct a security object.
FromXml(SecurityElement, PolicyLevel)	Uses the specified XML encoding to reconstruct a security object, using the specified policy level context.

FromXml(SecurityElement)

Source:

GacMembershipCondition.cs

Uses the specified XML encoding to reconstruct a security object.

C#

public void FromXml(System.Security.SecurityElement e);

Parameters

e

SecurityElement

The SecurityElement that contains the XML encoding to use to reconstruct the security object.

Implements

FromXml(SecurityElement)

Exceptions

ArgumentNullException

e is null.

ArgumentException

e is not a valid membership condition element.

Examples

The following code example shows the use of the FromXml method. This example is part of a larger example provided for the GacMembershipCondition class.

C#

GacMembershipCondition Gac1 = new GacMembershipCondition();
GacMembershipCondition Gac2 = new GacMembershipCondition();

// Roundtrip a GacMembershipCondition to and from an XML encoding.
Gac2.FromXml(Gac1.ToXml());
bool result = Gac2.Equals(Gac1);
if (result)
{
    Console.WriteLine(
        "Result of ToXml() = " + Gac2.ToXml().ToString());
    Console.WriteLine(
        "Result of ToFromXml roundtrip = " + Gac2.ToString());
}
else
{
    Console.WriteLine(Gac2.ToString());
    Console.WriteLine(Gac1.ToString());
    return false;
}

Remarks

The FromXml method reconstructs a GacMembershipCondition from an XML encoding defined by the SecurityElement class. Use the ToXml method to XML-encode the GacMembershipCondition including state information.

FromXml(SecurityElement, PolicyLevel)

Source:

GacMembershipCondition.cs

Uses the specified XML encoding to reconstruct a security object, using the specified policy level context.

C#

public void FromXml(System.Security.SecurityElement e, System.Security.Policy.PolicyLevel level);

Parameters

e

SecurityElement

The SecurityElement that contains the XML encoding to use to reconstruct the security object.

level

PolicyLevel

The PolicyLevel context for resolving NamedPermissionSet references.

Implements

FromXml(SecurityElement, PolicyLevel)

Exceptions

ArgumentNullException

e is null.

ArgumentException

e is not a valid membership condition element.

Examples

The following code example shows the use of the FromXml method. This example is part of a larger example provided for the GacMembershipCondition class.

C#

GacMembershipCondition Gac3 = new GacMembershipCondition();
GacMembershipCondition Gac4 = new GacMembershipCondition();
IEnumerator policyEnumerator = SecurityManager.PolicyHierarchy();
while (policyEnumerator.MoveNext())
{
    PolicyLevel currentLevel = 
        (PolicyLevel)policyEnumerator.Current;
    if (currentLevel.Label == "Machine")
    {
        Console.WriteLine("Result of ToXml(level) = " + 
            Gac3.ToXml(currentLevel));
        Gac4.FromXml(Gac3.ToXml(), currentLevel);
        Console.WriteLine("Result of FromXml(element, level) = " + 
            Gac4.ToString());
    }
}

Remarks

The policy level context is provided for resolution of named permission set references. For example, code groups use policy level to find named permission sets.