private static Type GetInferredType(IDictionaryAdapter dictionaryAdapter, PropertyDescriptor property, out IValueInitializer initializer)
{
Type type = null;
initializer = null;
type = property.PropertyType;
if (typeof(IEnumerable).IsAssignableFrom(type) == false)
{
return(type);
}
Type collectionType = null;
if (type.IsGenericType)
{
var genericDef = type.GetGenericTypeDefinition();
var genericArg = type.GetGenericArguments()[0];
bool isBindingList =
genericDef == typeof(System.ComponentModel.BindingList <>);
if (isBindingList || genericDef == typeof(List <>))
{
if (dictionaryAdapter.CanEdit)
{
collectionType = isBindingList ? typeof(EditableBindingList <>) : typeof(EditableList <>);
}
if (isBindingList && genericArg.IsInterface)
{
Func <object> addNew = () => dictionaryAdapter.Create(genericArg);
initializer = (IValueInitializer)Activator.CreateInstance(
typeof(BindingListInitializer <>).MakeGenericType(genericArg),
null, addNew, null, null, null);
}
}
else if (genericDef == typeof(IList <>) || genericDef == typeof(ICollection <>))
{
collectionType = dictionaryAdapter.CanEdit ? typeof(EditableList <>) : typeof(List <>);
}
if (collectionType != null)
{
return(collectionType.MakeGenericType(genericArg));
}
}
else if (type == typeof(IList) || type == typeof(ICollection))
{
return(dictionaryAdapter.CanEdit ? typeof(EditableList) : typeof(List <object>));
}
return(type);
}
public object GetPropertyValue(
IDictionaryAdapter dictionaryAdapter,
string key,
object storedValue,
PropertyDescriptor property,
bool ifExists
)
{
if (storedValue == null && ifExists == false)
{
IValueInitializer initializer = null;
if (Value != null)
{
storedValue = Value;
}
else
{
var type =
Type ?? GetInferredType(dictionaryAdapter, property, out initializer);
if (IsAcceptedType(type))
{
if (type.IsInterface)
{
if (property.IsDynamicProperty == false)
{
if (storedValue == null)
{
storedValue = dictionaryAdapter.Create(property.PropertyType);
}
}
}
else if (type.IsArray)
{
storedValue = Array.CreateInstance(type.GetElementType(), 0);
}
else
{
if (storedValue == null)
{
object[] args = null;
ConstructorInfo constructor = null;
if (property.IsDynamicProperty)
{
constructor = (
from ctor in type.GetConstructors()
let parms = ctor.GetParameters()
where
parms.Length == 1 &&
parms[0].ParameterType.IsAssignableFrom(
dictionaryAdapter.Meta.Type
)
select ctor
).FirstOrDefault();
if (constructor != null)
{
args = new[] { dictionaryAdapter }
}
;
}
if (constructor == null)
{
constructor = type.GetConstructor(Type.EmptyTypes);
}
if (constructor != null)
{
storedValue = constructor.Invoke(args);
}
}
}
}
}
if (storedValue != null)
{
using (dictionaryAdapter.SuppressNotificationsBlock())
{
if (storedValue is ISupportInitialize)
{
((ISupportInitialize)storedValue).BeginInit();
((ISupportInitialize)storedValue).EndInit();
}
if (initializer != null)
{
initializer.Initialize(dictionaryAdapter, storedValue);
}
property.SetPropertyValue(
dictionaryAdapter,
property.PropertyName,
ref storedValue,
dictionaryAdapter.This.Descriptor
);
}
}
}
return(storedValue);
}
public object GetPropertyValue(IDictionaryAdapter dictionaryAdapter, string key,
object storedValue, PropertyDescriptor property, bool ifExists)
{
if (storedValue == null && ifExists == false)
{
IValueInitializer initializer = null;
if (Value != null)
{
storedValue = Value;
}
else
{
var type = Type ?? GetInferredType(dictionaryAdapter, property, out initializer);
if (IsAcceptedType(type))
{
if (type.IsInterface)
{
if (property.IsDynamicProperty == false)
{
if (storedValue == null)
{
storedValue = dictionaryAdapter.Create(property.PropertyType);
}
}
}
else if (type.IsArray)
{
storedValue = Array.CreateInstance(type.GetElementType(), 0);
}
else
{
if (storedValue == null)
{
object[] args = null;
ConstructorInfo constructor = null;
if (property.IsDynamicProperty)
{
constructor =
(from ctor in type.GetConstructors()
let parms = ctor.GetParameters()
where parms.Length == 1 &&
parms[0].ParameterType.IsAssignableFrom(dictionaryAdapter.Meta.Type)
select ctor).FirstOrDefault();
if (constructor != null) args = new[] { dictionaryAdapter };
}
if (constructor == null)
{
constructor = type.GetConstructor(Type.EmptyTypes);
}
if (constructor != null)
{
storedValue = constructor.Invoke(args);
}
}
}
}
}
if (storedValue != null)
{
using (dictionaryAdapter.SuppressNotificationsBlock())
{
#if !SL3
if (storedValue is ISupportInitialize)
{
((ISupportInitialize)storedValue).BeginInit();
((ISupportInitialize)storedValue).EndInit();
}
#endif
if (initializer != null)
{
initializer.Initialize(dictionaryAdapter, storedValue);
}
property.SetPropertyValue(dictionaryAdapter, property.PropertyName,
ref storedValue, dictionaryAdapter.This.Descriptor);
}
}
}
return storedValue;
}
private Type GetInferredType(IDictionaryAdapter dictionaryAdapter, PropertyDescriptor property,
out IValueInitializer initializer)
{
Type type = null;
initializer = null;
type = property.PropertyType;
if (typeof(IEnumerable).IsAssignableFrom(type) == false)
{
return type;
}
Type collectionType = null;
if (type.IsGenericType)
{
var genericDef = type.GetGenericTypeDefinition();
var genericArg = type.GetGenericArguments()[0];
bool isBindingList =
#if SILVERLIGHT
false;
#else
genericDef == typeof(BindingList<>);
#endif
if (isBindingList || genericDef == typeof(List<>))
{
if (dictionaryAdapter.CanEdit)
{
#if SILVERLIGHT
collectionType = typeof(EditableList<>);
#else
collectionType = isBindingList ? typeof(EditableBindingList<>) : typeof(EditableList<>);
#endif
}
#if SILVERLIGHT //never true
#else
if (isBindingList && genericArg.IsInterface)
{
Func<object> addNew = () => dictionaryAdapter.Create(genericArg);
initializer = (IValueInitializer)Activator.CreateInstance(
typeof(BindingListInitializer<>).MakeGenericType(genericArg),
null, addNew, null, null);
}
#endif
}
else if (genericDef == typeof(IList<>) || genericDef == typeof(ICollection<>))
{
collectionType = dictionaryAdapter.CanEdit ? typeof(EditableList<>) : typeof(List<>);
}
if (collectionType != null)
{
return collectionType.MakeGenericType(genericArg);
}
}
else if (type == typeof(IList) || type == typeof(ICollection))
{
return dictionaryAdapter.CanEdit ? typeof(EditableList) : typeof(List<object>);
}
return type;
}
