async Task SaveOneToOne(ComplexPropertyDescriptor navPropertyDescriptor, object owner, TypeDescriptor ownerTypeDescriptor, bool @async)
{
/*
* 1:1
* T <1:1> TOther
* T.TOther <--> TOther.T
* T.Id <--> TOther.Id
*/
//owner is T
//navPropertyDescriptor is T.TOther
//TypeDescriptor of T.TOther
TypeDescriptor navTypeDescriptor = EntityTypeContainer.GetDescriptor(navPropertyDescriptor.PropertyType);
//TOther.T
ComplexPropertyDescriptor TOtherDotT = navTypeDescriptor.ComplexPropertyDescriptors.Where(a => a.PropertyType == ownerTypeDescriptor.Definition.Type).FirstOrDefault();
bool isOneToOne = TOtherDotT != null;
if (!isOneToOne)
{
return;
}
//instance of T.TOther
object navValue = navPropertyDescriptor.GetValue(owner);
if (navValue == null)
{
return;
}
//T.Id
PrimitivePropertyDescriptor foreignKeyProperty = navPropertyDescriptor.ForeignKeyProperty;
if (foreignKeyProperty.IsAutoIncrement || foreignKeyProperty.HasSequence())
{
//value of T.Id
object foreignKeyValue = foreignKeyProperty.GetValue(owner);
//T.TOther.Id = T.Id
TOtherDotT.ForeignKeyProperty.SetValue(navValue, foreignKeyValue);
}
MethodInfo saveMethod = GetSaveMethod(navPropertyDescriptor.PropertyType);
//DbContext.Save(navValue, ownerTypeDescriptor, @async);
Task task = (Task)saveMethod.Invoke(this, navValue, ownerTypeDescriptor, @async);
await task;
}
bool CanMoveSelectedRowsToGroup(DragDropManagerBase sourceManager, GroupInfo[] groupInfos, DependencyObject hitElement) {
if(GetRowElement(hitElement) == null)
return false;
foreach(object obj in sourceManager.DraggingRows) {
if(!ItemsSource.Contains(obj))
return true;
foreach(GroupInfo groupInfo in groupInfos) {
object value;
if(groupInfo.FieldName.Contains(".")) {
ComplexPropertyDescriptor complexDescr = new ComplexPropertyDescriptor(obj, groupInfo.FieldName);
value = complexDescr.GetValue(obj);
} else
value = TypeDescriptor.GetProperties(obj)[groupInfo.FieldName].GetValue(obj);
if(!object.Equals(value, groupInfo.Value))
return true;
}
}
return false;
}
