private void Initialize()
{
if (_type == null || (current != null && current.GetType() != _type))
{
_type = current.GetType();
}
if (_typeMemberSelector != null)
{
_memberNames = _typeMemberSelector(_type);
}
var allMembers = _memberNames == null || _memberNames.Length == 0;
accessor = TypeAccessor.Create(_type);
if (accessor.GetMembersSupported)
{
var typeMembers = accessor.GetMembers();
if (allMembers)
{
_memberNames = new string[typeMembers.Count];
for (var i = 0; i < _memberNames.Length; i++)
{
_memberNames[i] = typeMembers[i].Name;
}
}
allowNull = new BitArray(_memberNames.Length);
effectiveTypes = new Type[_memberNames.Length];
for (var i = 0; i < _memberNames.Length; i++)
{
Type memberType = null;
var iAllowNull = true;
var hunt = _memberNames[i];
foreach (var member in typeMembers)
{
if (member.Name == hunt)
{
if (memberType == null)
{
var tmp = member.Type;
memberType = Nullable.GetUnderlyingType(tmp) ?? tmp;
iAllowNull = !(TypeHelpers._IsValueType(memberType) && memberType == tmp);
// but keep checking, in case of duplicates
}
else
{
memberType = null; // duplicate found; say nothing
break;
}
}
}
allowNull[i] = iAllowNull;
effectiveTypes[i] = memberType ?? typeof(object);
}
}
else if (allMembers)
{
throw new InvalidOperationException(
"Member information is not available for this type; the required members must be specified explicitly");
}
//current = null;
_isInitialized = true;
}