private static List <LookupListItem <Guid?> > GetLookupValues(bool withEmptyRow, EntityAttribute attribute)
{
var lookupValue = attribute.AttributeLookupValues.First();
var lookupValueEntity = lookupValue.Entity;
string displayMemberName =
lookupValueEntity.Attributes.First(a => a.AttributeId == lookupValue.DisplayEntityAttributeId).PhysicalName;
string valueMemberName = lookupValueEntity.Name + "Id";
var values = new DynamicDataServiceContext().GetObjects(lookupValueEntity.PhysicalName);
var items = new List <LookupListItem <Guid?> >();
foreach (var value in values)
{
var item = new LookupListItem <Guid?>();
object displayName = value.GetType().GetProperty(displayMemberName).GetValue(value, null);
if (displayName != null)
{
item.DisplayName = displayName.ToString();
item.Value = (Guid)value.GetType().GetProperty(valueMemberName).GetValue(value, null);
items.Add(item);
}
}
if (withEmptyRow)
{
items.Insert(0, new LookupListItem <Guid?>());
}
return(items);
}
private static List <LookupListItem <int?> > GetPickListValues(EntityAttribute attribute, int langId)
{
var values = attribute.OptionSet.AttributePicklistValues.OrderBy(v => v.DisplayOrder);
var items = new List <LookupListItem <int?> >();
var labels = MetadataProvider.Instance.LocalizedLabels;
foreach (var value in values)
{
var item = new LookupListItem <int?>();
var localizedLabels = labels.Where(l => l.ObjectId == value.AttributePicklistValueId);
var localizedLabel = localizedLabels.FirstOrDefault(l => l.LanguageId == langId) ?? localizedLabels.First();
if (localizedLabel != null)
{
item.DisplayName = localizedLabel.Label;
}
item.Value = value.Value;
items.Add(item);
}
if (attribute.IsNullable.HasValue && attribute.IsNullable.Value)
{
items.Insert(0, new LookupListItem <int?>());
}
return(items);
}