主要原因是多个节点绑定了同一个Data Context,需要找到这个节点,并删除属性Data Context.

提供一个快速找到绑定Data Context节点的方法.

shared_ptr<Node> node = dynamic_pointer_cast<Node>(getRoot());
    Create_Node2D_Recursively(node);


void Create_Node2D_Recursively(shared_ptr<Node>& node)
{
    size_t size = node->getAbstractChildCountOverride();
    for (unsigned int i = 0; i < size; ++i)
    {
        shared_ptr<Node> object = dynamic_pointer_cast<Node>(node->getAbstractChildOverride(i));

        ResourceSharedPtr res = object->getProperty(DataContext::DataContextProperty);

        if (object->hasValue(DataContext::DataContextProperty)) {
            kzLogDebug(("~~~~~~ {} has DataContext! kzUrl={}", object->getName(), object->getPath()));
        }

        if (object->getAbstractChildCountOverride() > 0)
        {
            Create_Node2D_Recursively(object);
        }
        else {
            Viewport2DSharedPtr v2d = dynamic_pointer_cast<Viewport2D>(object);
            if (v2d) {//Viewport2D                
                SceneSharedPtr sc = v2d->getScene();
                if (sc->getChildCount() > 0)
                {
                    shared_ptr<Node3D> node = dynamic_pointer_cast<Node3D>(sc);
                    Create_Node3D_Recursively(node);
                }
            }           
        }
    }
}

void Create_Node3D_Recursively(shared_ptr<Node3D>& node)
{
    size_t size = node->getChildCount();
    for (unsigned int i = 0; i < size; ++i)
    {
        Node3DSharedPtr object = node->getChild(i);
  
        if (object->hasValue(DataContext::DataContextProperty)) {
            kzLogDebug(("~~3d~~~~ {} has DataContext! kzUrl={}", object->getName(), object->getPath()));
        }
        if (object->getChildCount() > 0)
        {
            Create_Node3D_Recursively(object);
        }
    }
}

运行HMI,在控制台查看log
有has DataContext! kzUrl=即可通过url快速找到对应的节点,删除节点下DataContext