private void OnSourceResolved(object oldValue, object newValue)
{
if (_isResolved)
{
return;
}
_bindingResolved(newValue);
if (_autoDettach == false)
{
return;
}
_isResolved = true;
ClearValue(SourceProperty);
var dataItem = (DependencyObject)_dataItemRef.Target;
if (dataItem == null)
{
return;
}
var resolvers = BindingResolverCollection.GetResolvers(dataItem);
resolvers.Remove(this);
if (resolvers.Count == 0)
{
dataItem.ClearValue(BindingResolverCollection.ResolversProperty);
}
}
public BindingResolver(DependencyObject dataItem, Binding binding, Action <object> bindingResolved, bool autoDettach = true)
{
_dataItemRef = new WeakReference(dataItem);
_bindingResolved = bindingResolved;
_autoDettach = autoDettach;
BindingResolverCollection.GetResolvers(dataItem).Add(this);
BindingOperations.SetBinding(this, SourceProperty, binding);
}