# AspNetPanel
To use the `AspNetPanel` control, simply set the `PageSource` property to the location of an existing .aspx document in the project.
{% hint style="info" %}
For a full list of properties, methods and events see the [API documentation.](http://docs.wisej.com/api)
{% endhint %}
## Features
### Page Source
Any ASP.NET or MVC page source can be shown in the `AspNetPanel` control.
Here's a sample page that converts text from lowercase to uppercase.
The corresponding code in the `PageSource`:
{% tabs %}
{% tab title="ASP.NET (C#)" %}
```aspnet
<% @Page Language="C#" %>
Change to Upper Case
Conversion to Upper Case
```
{% endtab %}
{% endtabs %}
## Advanced
### JavaScript Widget
| Item | Description |
| ---------------- | ------------------------------------------------------------------------------------------------------------------- |
| Class name | "wisej.web.IFrame" |
| Theme appearance | "iframe", see [Themes](https://docs.wisej.com/theme-builder/theme-elements/elements). |
| Child components | "frame" is the iframe element. See [JavaScript](/docs/concepts/javascript-object-model.md). |
| Source Code | [https://github.com/iceteagroup/wisej-js](https://github.com/iceteagroup/wisej-js/blob/master/wisej.web.TextBox.js) |
---
# 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.wisej.com/docs/controls/content/aspnetpanel.md?ask=
```
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.