public RelatedCurrencyManager(BindingManagerBase parent, PropertyDescriptor prop_desc)
: base(prop_desc.GetValue (parent.Current))
{
this.parent = parent;
this.prop_desc = prop_desc;
parent.PositionChanged += new EventHandler (parent_PositionChanged);
}
public RelatedPropertyManager(BindingManagerBase parent, string property_name)
{
this.parent = parent;
this.property_name = property_name;
if (parent.Position != -1)
SetDataSource (parent.Current);
parent.PositionChanged += new EventHandler (parent_PositionChanged);
}
public RelatedPropertyManager(BindingManagerBase parent, string property_name)
{
this.parent = parent;
this.property_name = property_name;
if (parent.Position != -1)
{
SetDataSource(parent.Current);
}
parent.PositionChanged += new EventHandler(parent_PositionChanged);
}
internal void Check()
{
if (control == null || control.BindingContext == null)
{
return;
}
if (manager == null)
{
manager = control.BindingContext [data_source, binding_member_info.BindingPath];
if (manager.Position > -1 && binding_member_info.BindingField != String.Empty &&
TypeDescriptor.GetProperties(manager.Current).Find(binding_member_info.BindingField, true) == null)
{
throw new ArgumentException("Cannot bind to property '" + binding_member_info.BindingField + "' on DataSource.",
"dataMember");
}
manager.AddBinding(this);
manager.PositionChanged += new EventHandler(PositionChangedHandler);
if (manager is PropertyManager) // Match .net, which only watchs simple objects
{
EventDescriptor prop_changed_event = GetPropertyChangedEvent(manager.Current, binding_member_info.BindingField);
if (prop_changed_event != null)
{
prop_changed_event.AddEventHandler(manager.Current, new EventHandler(SourcePropertyChangedHandler));
}
else if (manager.Current is INotifyPropertyChanged)
{
INotifyPropertyChanged notified = manager.Current as INotifyPropertyChanged;
notified.PropertyChanged += new PropertyChangedEventHandler(NotifiedPropertyChangedHandler);
}
}
else if (manager is CurrencyManager)
{
manager.CurrentItemChanged += new EventHandler(CurrentItemChangedHandler);
}
}
if (manager.Position == -1)
{
return;
}
if (!checked_isnull)
{
is_null_desc = TypeDescriptor.GetProperties(manager.Current).Find(property_name + "IsNull", false);
checked_isnull = true;
}
PushData(false, true);
}
protected virtual void AddCore(object dataSource, BindingManagerBase listManager)
{
if (dataSource == null)
{
throw new ArgumentNullException("dataSource");
}
if (listManager == null)
{
throw new ArgumentNullException("listManager");
}
HashKey key = new HashKey(dataSource, String.Empty);
managers [key] = listManager;
}
public BindingManagerBase this [object dataSource, string dataMember] {
get {
if (dataSource == null)
{
throw new ArgumentNullException("dataSource");
}
if (dataMember == null)
{
dataMember = String.Empty;
}
ICurrencyManagerProvider cm_provider = dataSource as ICurrencyManagerProvider;
if (cm_provider != null)
{
if (dataMember.Length == 0)
{
return(cm_provider.CurrencyManager);
}
return(cm_provider.GetRelatedCurrencyManager(dataMember));
}
HashKey key = new HashKey(dataSource, dataMember);
BindingManagerBase res = managers [key] as BindingManagerBase;
if (res != null)
{
return(res);
}
res = CreateBindingManager(dataSource, dataMember);
if (res == null)
{
return(null);
}
managers [key] = res;
return(res);
}
}
private BindingManagerBase CreateBindingManager(object data_source, string data_member)
{
if (data_member == "")
{
if (IsListType(data_source.GetType()))
{
return(new CurrencyManager(data_source));
}
else
{
return(new PropertyManager(data_source));
}
}
else
{
BindingMemberInfo info = new BindingMemberInfo(data_member);
BindingManagerBase parent_manager = this[data_source, info.BindingPath];
PropertyDescriptor pd = parent_manager == null ? null : parent_manager.GetItemProperties().Find(info.BindingField, true);
if (pd == null)
{
throw new ArgumentException(String.Format("Cannot create a child list for field {0}.", info.BindingField));
}
if (IsListType(pd.PropertyType))
{
return(new RelatedCurrencyManager(parent_manager, pd));
}
else
{
return(new RelatedPropertyManager(parent_manager, info.BindingField));
}
}
}
protected internal void Add(object dataSource, BindingManagerBase listManager)
{
AddCore(dataSource, listManager);
OnCollectionChanged(new CollectionChangeEventArgs(CollectionChangeAction.Add, dataSource));
}
protected virtual void AddCore(object dataSource, BindingManagerBase listManager)
{
if (dataSource == null)
throw new ArgumentNullException ("dataSource");
if (listManager == null)
throw new ArgumentNullException ("listManager");
HashKey key = new HashKey (dataSource, String.Empty);
managers [key] = listManager;
}
protected internal void Add(object dataSource, BindingManagerBase listManager)
{
AddCore (dataSource, listManager);
OnCollectionChanged (new CollectionChangeEventArgs (CollectionChangeAction.Add, dataSource));
}
internal void Check()
{
if (control == null || control.BindingContext == null)
return;
if (manager == null) {
manager = control.BindingContext [data_source, binding_member_info.BindingPath];
if (manager.Position > -1 && binding_member_info.BindingField != String.Empty &&
TypeDescriptor.GetProperties (manager.Current).Find (binding_member_info.BindingField, true) == null)
throw new ArgumentException ("Cannot bind to property '" + binding_member_info.BindingField + "' on DataSource.",
"dataMember");
manager.AddBinding (this);
manager.PositionChanged += new EventHandler (PositionChangedHandler);
if (manager is PropertyManager) { // Match .net, which only watchs simple objects
EventDescriptor prop_changed_event = GetPropertyChangedEvent (manager.Current, binding_member_info.BindingField);
if (prop_changed_event != null)
prop_changed_event.AddEventHandler (manager.Current, new EventHandler (SourcePropertyChangedHandler));
else if (manager.Current is INotifyPropertyChanged) {
INotifyPropertyChanged notified = manager.Current as INotifyPropertyChanged;
notified.PropertyChanged += new PropertyChangedEventHandler (NotifiedPropertyChangedHandler);
}
} else if (manager is CurrencyManager) {
manager.CurrentItemChanged += new EventHandler (CurrentItemChangedHandler);
}
}
if (manager.Position == -1)
return;
if (!checked_isnull) {
is_null_desc = TypeDescriptor.GetProperties (manager.Current).Find (property_name + "IsNull", false);
checked_isnull = true;
}
PushData (false, true);
}
