# VisDropDownBase

Namespace: **PPJ.Runtime.Vis**

Assembly: **PPJ.Web.Vis.49** (4.9.0.0)

Base class for all custom dropdown controls.

{% tabs %}
{% tab title="C#" %}

```csharp
public class VisDropDownBase : SalComboBox
```

{% endtab %}

{% tab title="VB.NET" %}

```visual-basic
Public Class VisDropDownBase
    Inherits SalComboBox
```

{% endtab %}
{% endtabs %}

## Constructors

### ![](https://620403885-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrwxBtXkZ9hhQWYdbGhAV%2Fuploads%2FCKg4odMPj9bBKavXG5j4%2Finstance.png?alt=media\&token=2ac4a01b-785e-4197-b802-d5aae2250f90)VisDropDownBase()

## Properties

### ![](https://620403885-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrwxBtXkZ9hhQWYdbGhAV%2Fuploads%2FCKg4odMPj9bBKavXG5j4%2Finstance.png?alt=media\&token=2ac4a01b-785e-4197-b802-d5aae2250f90)DropDownControl

[Control](https://docs.wisej.com/api?q=wisej.web.control): Gets/Sets the control to use as the combo's dropdown.

### ![](https://620403885-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FrwxBtXkZ9hhQWYdbGhAV%2Fuploads%2FCKg4odMPj9bBKavXG5j4%2Finstance.png?alt=media\&token=2ac4a01b-785e-4197-b802-d5aae2250f90)SelectedIndex

[Int32](https://docs.microsoft.com/en-us/dotnet/api/system.int32): Hide the SelectedIndex property.

## Inherited By

| Name                                                                                                                    | Description                                         |
| ----------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------- |
| [VisListViewDropDown](https://docs.wisej.com/extensions/ppj.web.vis.49/controls/ppj.runtime.vis.vislistviewdropdown.md) | Combobox with dropdown cListView                    |
| [VisOutlineComboBox](https://docs.wisej.com/extensions/ppj.web.vis.49/controls/ppj.runtime.vis.visoutlinecombobox.md)   | Combobox which supports hierarchical tree outlines. |

## Implements

| Name                                                                                                              | Description |
| ----------------------------------------------------------------------------------------------------------------- | ----------- |
| [ISalControl](https://docs.wisej.com/extensions/ppj.web.49/interfaces/ppj.runtime.windows.isalcontrol.md)         |             |
| [ISalEditControl](https://docs.wisej.com/extensions/ppj.web.49/interfaces/ppj.runtime.windows.isaleditcontrol.md) |             |
| [ISalListControl](https://docs.wisej.com/extensions/ppj.web.49/interfaces/ppj.runtime.windows.isallistcontrol.md) |             |
| [ISalWindow](https://docs.wisej.com/extensions/ppj.web.49/interfaces/ppj.runtime.windows.isalwindow.md)           |             |