/// <summary>
/// Gets the raw value from source.
/// </summary>
protected override object GetRawValueInternal(IBindingMemberInfo targetMember, IDataContext context,
bool throwOnError)
{
IBindingPathMembers members = _bindingSource.GetPathMembers(throwOnError);
return(members.LastMember.GetValue(members.PenultimateValue, null));
}
private static void SetDefaultValue(IBindingSource source)
{
var pathMembers = source.GetPathMembers(false);
if (pathMembers.AllMembersAvailable)
{
pathMembers.LastMember.SetValue(pathMembers.PenultimateValue,
new[] { pathMembers.LastMember.Type.GetDefaultValue() });
}
}
private void OneTimeSourceHandler(IBindingSource sender, ValueChangedEventArgs args)
{
var members = sender.GetPathMembers(false);
if (!members.AllMembersAvailable)
{
return;
}
UnsubscribeSources(OneTimeSourceHandler);
Binding.UpdateSource();
}
private void TrySubscribe(IBindingSource source)
{
var dataErrorInfo = source.GetPathMembers(false).PenultimateValue as INotifyDataErrorInfo;
if (dataErrorInfo == null)
{
return;
}
var subscriber = BindingServiceProvider.WeakEventManager.TrySubscribe(dataErrorInfo, ErrorsChangedEvent, this);
if (subscriber != null)
{
_subscribers.Add(subscriber);
}
}
private void CollectErrors(ref List <object> errors, IBindingSource bindingSource)
{
var notifyDataErrorInfo = bindingSource.GetPathMembers(false).PenultimateValue as INotifyDataErrorInfo;
if (notifyDataErrorInfo == null)
{
return;
}
var path = bindingSource.Path.Parts.LastOrDefault();
var paths = ErrorPaths;
if (!string.IsNullOrEmpty(path) || paths == null || paths.Length == 0)
{
CollectErrors(notifyDataErrorInfo, path, ref errors);
}
if (paths != null)
{
for (int i = 0; i < paths.Length; i++)
{
CollectErrors(notifyDataErrorInfo, paths[i], ref errors);
}
}
}
private void CollectErrors(ref List<object> errors, IBindingSource bindingSource)
{
var notifyDataErrorInfo = bindingSource.GetPathMembers(false).PenultimateValue as INotifyDataErrorInfo;
if (notifyDataErrorInfo == null)
return;
var path = bindingSource.Path.Parts.LastOrDefault();
var paths = ErrorPaths;
if (!string.IsNullOrEmpty(path) || paths == null || paths.Length == 0)
CollectErrors(notifyDataErrorInfo, path, ref errors);
if (paths != null)
{
for (int i = 0; i < paths.Length; i++)
CollectErrors(notifyDataErrorInfo, paths[i], ref errors);
}
}
private void TrySubscribe(IBindingSource source)
{
var dataErrorInfo = source.GetPathMembers(false).PenultimateValue as INotifyDataErrorInfo;
if (dataErrorInfo == null)
return;
var subscriber = BindingServiceProvider.WeakEventManager.TrySubscribe(dataErrorInfo, ErrorsChangedEvent, this);
if (subscriber != null)
_subscribers.Add(subscriber);
}
private void SetDefaultValue(IBindingSource source)
{
var pathMembers = source.GetPathMembers(false);
if (pathMembers.AllMembersAvailable)
{
object value = _value;
if (!pathMembers.LastMember.Type.IsInstanceOfType(value))
value = pathMembers.LastMember.Type.GetDefaultValue();
pathMembers.LastMember.SetValue(pathMembers.PenultimateValue, new[] { value });
}
}
