# Preview

## Overview

The Preview displays the result of the query as defined by the list of Fields after Conditions have been met and Default Values have been applied to.

![The Preview provides an ad hoc impression of how the result of a query looks](/files/-MBWmuM871j8Q0Pa6o9W)

Although the resulting grid in the Preview area provides you a feature-rich experience to further group information, select or deselect certain columns and apply additional filters to the result those changes have no impact on the query definitions in the sections Fields or Conditions. In case that you want to make those adjustments permanent you have to apply those modifications in the corresponding lists.

{% hint style="info" %}
Preview currently does not support queries with Context classes.
{% endhint %}


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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://docs.tivity.one/building-an-application/data/query-data/query-designer-preview.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.