# Data

Data specifies where this control gets its Data from. If no DataSource is set for the control, you get a List of table columns from the master table. If DataSource is set, you have to enter a Field from this DataSource (like a controlId if your DataSource is a Config)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://brixxbox.gitbook.io/brixxbox-documentation/configuration/app-editor/app-editor-properties/data.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.