//==============================================================================================================================
// Helper for the GetCustomAttributes() methods that take a specific attribute type. For desktop compatibility,
// we return an array of the specific attribute type even though the api's return type promises only an IEnumerable<Attribute>.
// There are known store apps that cast the results of apis and expect the cast to work.
//==============================================================================================================================
private static IEnumerable <Attribute> Instantiate(this IEnumerable <CustomAttributeData> cads, Type actualElementType)
{
List <Attribute> attributes = new List <Attribute> ();
foreach (CustomAttributeData cad in cads)
{
Attribute instantiatedAttribute = /*cad.Instantiate ()*/ (Attribute)Activator.CreateInstance(cad.GetType());
attributes.Add(instantiatedAttribute);
}
int count = attributes.Count;
Attribute[] result;
result = (Attribute[])Array.CreateInstance(actualElementType, count);
attributes.CopyTo(result, 0);
return(result);
}
private void LoadElements()
{
_elements.Clear();
var interfaces = NetworkInterface.GetAllNetworkInterfaces();
var columnTypes = new[]
{
typeof(IfIndex), typeof(IfDescr), typeof(IfType), typeof(IfMtu), typeof(IfSpeed), typeof(IfPhysAddress), typeof(IfAdminStatus), typeof(IfOperStatus),
typeof(IfLastChange), typeof(IfInOctets), typeof(IfInUcastPkts), typeof(IfInNUcastPkts), typeof(IfInDiscards), typeof(IfInErrors), typeof(IfInUnknownProtos),
typeof(IfOutOctets), typeof(IfOutUcastPkts), typeof(IfOutNUcastPkts), typeof(IfOutDiscards), typeof(IfOutErrors), typeof(IfOutQLen), typeof(IfSpecific)
};
foreach (var type in columnTypes)
{
for (int i = 0; i < interfaces.Length; i++)
{
_elements.Add((ScalarObject)Activator.CreateInstance(type, new object[] { i + 1, interfaces[i] }));
}
}
}
internal static void AddPrefix(string prefix, Type type)
{
object o = Activator.CreateInstance(type, true);
prefixes[prefix] = o;
}
private static Attribute Instantiate(this CustomAttributeData cad)
{
return /*cad.Instantiate ()*/ ((Attribute)Activator.CreateInstance(cad.GetType()));
}