# StackController

{% hint style="info" %}
Class (inherits from [DesktopContainer](https://documentation.xojo.com/api/user_interface/desktop/desktopcontainer.html))
{% endhint %}

## Methods

| [AddView](#addview-view-as-viewcontroller-index-as-integer-1) | [Init](#init-useanimation-as-boolean) |
| ------------------------------------------------------------- | ------------------------------------- |
| [RemoveView](#removeview-index-as-integer-1)                  |                                       |

### AddView(view As [ViewController](/add-ons/stackview/version-3/details/viewcontroller.md), index As [Integer](https://documentation.xojo.com/api/data_types/integer.html) = -1)

Adds a View (dynamically at the Runtime) to the StackView.

**Parameters**

| Name    | Description                                                 |
| ------- | ----------------------------------------------------------- |
| *view*  | Pointer to the View which should be added to the StackView. |
| *index* | Position to add the View into the StackView.                |

### Init(useAnimation As [Boolean](https://documentation.xojo.com/api/data_types/boolean.html))

Set Views animation.

**Parameters**

| Name           | Description                                                                                                                     |
| -------------- | ------------------------------------------------------------------------------------------------------------------------------- |
| *useAnimation* | A [Boolean](https://documentation.xojo.com/api/data_types/boolean.html) specifiying the animation state of the StackController. |

### RemoveView(index As [Integer](https://documentation.xojo.com/api/data_types/integer.html) = -1)

Removes a View from the StackView.

**Parameters**

| Name    | Description                                            |
| ------- | ------------------------------------------------------ |
| *index* | Removes the View at position index from the StackView. |

## Properties

### AutoSetup As [Boolean](https://documentation.xojo.com/api/data_types/boolean.html) *(designtime-only)*

Automatically adds the [ViewControllers](/add-ons/stackview/version-3/details/viewcontroller.md) contained in the StackController (based on their z-Order in the Layout Editor). Otherwise, you must add the [ViewControllers](/add-ons/stackview/version-3/details/viewcontroller.md) manually via `Views.Add()` in the `Opening`-Event.

{% hint style="info" %}
If  `AutoSetup = True`, the views are arranged according to their *DesktopContainer.TabIndex* set in the Xojo IDE.
{% endhint %}

### Expanded As [Boolean](https://documentation.xojo.com/api/data_types/boolean.html)

Set or return the state of the StackView.

### UseAnimation As [Boolean](https://documentation.xojo.com/api/data_types/boolean.html)

Animate all Views while collapsing/expanding.

### Views() As [ViewController](/add-ons/stackview/version-3/details/viewcontroller.md)

Collection of ViewControllers.

**Sample Code**

MyStackController1 `Opening`-Event:

{% code title="Opening-Event" %}

```xojo
If Not Self.AutoSetup Then
  Views.Add(MyFontView1)
  Views.Add(MyAlignmentView1)
  Views.Add(MyMarginView1)
End If 
```

{% endcode %}


---

# 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://xojo.gitbook.io/add-ons/stackview/version-3/details/stackcontroller.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.
