public override bool TryGetValue(out object value)
{
if (_currentChildBinding == null)
{
value = null;
return(false);
}
return(_currentChildBinding.TryGetValue(out value));
}
private void CreateSourceBinding(object source)
{
_dataContext = source;
_sourceBinding = SourceBindingFactory.CreateBinding(source, _bindingDescription.SourcePropertyPath);
if (NeedToObserveSourceChanges)
_sourceBinding.Changed += (sender, args) => UpdateTargetFromSource(args.IsAvailable, args.Value);
if (NeedToUpdateTargetOnBind)
{
// note that we expect Bind to be called on the UI thread - so no need to use RunOnUIThread here
object currentValue;
bool currentIsAvailable = _sourceBinding.TryGetValue(out currentValue);
UpdateTargetFromSource(currentIsAvailable, currentValue);
}
}
private void CreateSourceBinding(object source)
{
_dataContext = source;
_sourceBinding = SourceBindingFactory.CreateBinding(source, _bindingDescription.SourcePropertyPath);
if (NeedToObserveSourceChanges)
{
_sourceBinding.Changed += (sender, args) => UpdateTargetFromSource(args.IsAvailable, args.Value);
}
if (NeedToUpdateTargetOnBind)
{
// note that we expect Bind to be called on the UI thread - so no need to use RunOnUIThread here
object currentValue;
bool currentIsAvailable = _sourceBinding.TryGetValue(out currentValue);
UpdateTargetFromSource(currentIsAvailable, currentValue);
}
}
public MvxSourcePropertyBindingEventArgs(IMvxSourceBinding propertySourceBinding)
{
_isAvailable = propertySourceBinding.TryGetValue(out _value);
}
public MvxSourcePropertyBindingEventArgs(IMvxSourceBinding propertySourceBinding)
{
_isAvailable = propertySourceBinding.TryGetValue(out _value);
}