Hello everybody I am developing a custom node based on a dropdown list in C# to allow a quick choice of IFC types recognized in the Revit API. My node works fine but each time I open the dynamo file that contains it, the number of outputs increments. [image] namespace NodesUI { /// <summary>…

You need a JSON constructor. [image] UI Node Extra Output Ports Developers implement a json constructor that reuses the deserialized ports from the .dyn file.

Thank you for your very quick response.

Node is increase amount of Output node when i restart dynamo

Developers

Anton_Huizinga February 26, 2025, 10:01pm 2

You need a JSON constructor.

Topic		Replies	Views
UI Node Extra Output Ports Developers	2	652	August 17, 2021
Dropdown node - Duplicate output ports	2	403	September 14, 2022
Dynamo 2.0 duplicates ports of custom node when file is saved and reopened? Developers	10	1938	June 1, 2021
Node model has duplicate In/Outputs when script reloaded Developers dynamo , nodemodel , developers , civil3d	4	63	October 8, 2025
Create Simple DropDown Node Developers ui , dynamo , developers	3	1390	September 23, 2020

Node is increase amount of Output node when i restart dynamo

Related topics