> ## Documentation Index
> Fetch the complete documentation index at: https://docs.comfy.org/llms.txt
> Use this file to discover all available pages before exploring further.

# DCTestNode - ComfyUI Built-in Node Documentation

> Complete documentation for the DCTestNode node in ComfyUI. Learn its inputs, outputs, parameters and usage.

> This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! [Edit on GitHub](https://github.com/Comfy-Org/embedded-docs/blob/main/comfyui_embedded_docs/docs/DCTestNode/en.md)

The DCTestNode is a logic node that returns different types of data based on a user's selection from a dynamic combo box. It acts as a conditional router, where the chosen option determines which input field is active and what type of value the node will output.

## Inputs

| Parameter  | Data Type | Required | Range                                                          | Description                                                                                                                          |
| ---------- | --------- | -------- | -------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| `combo`    | COMBO     | Yes      | `"option1"`<br />`"option2"`<br />`"option3"`<br />`"option4"` | The main selection that determines which input field is active and what the node will output.                                        |
| `string`   | STRING    | No       | -                                                              | A text input field. This field is only active and required when `combo` is set to `"option1"`.                                       |
| `integer`  | INT       | No       | -                                                              | A whole number input field. This field is only active and required when `combo` is set to `"option2"`.                               |
| `image`    | IMAGE     | No       | -                                                              | An image input field. This field is only active and required when `combo` is set to `"option3"`.                                     |
| `subcombo` | COMBO     | No       | `"opt1"`<br />`"opt2"`                                         | A secondary selection that appears when `combo` is set to `"option4"`. It determines which nested input fields are active.           |
| `float_x`  | FLOAT     | No       | -                                                              | A decimal number input. This field is only active and required when `combo` is set to `"option4"` and `subcombo` is set to `"opt1"`. |
| `float_y`  | FLOAT     | No       | -                                                              | A decimal number input. This field is only active and required when `combo` is set to `"option4"` and `subcombo` is set to `"opt1"`. |
| `mask1`    | MASK      | No       | -                                                              | A mask input field. This field is only active when `combo` is set to `"option4"` and `subcombo` is set to `"opt2"`. It is optional.  |

**Parameter Constraints:**

* The `combo` parameter controls the visibility and requirement of all other input fields. Only the inputs associated with the selected `combo` option will be shown and are required (except for `mask1` which is optional).
* When `combo` is set to `"option4"`, the `subcombo` parameter becomes required and controls a second set of nested inputs (`float_x`/`float_y` or `mask1`).

## Outputs

| Output Name | Data Type | Description                                                                                                                                                                                               |
| ----------- | --------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `output`    | ANYTYPE   | The output depends on the selected `combo` option. It can be a STRING (`"option1"`), an INT (`"option2"`), an IMAGE (`"option3"`), or a string representation of the `subcombo` dictionary (`"option4"`). |