# ScrollEventHandler

Namespace: **Wisej.Web**

Assembly: **Wisej.Framework** (4.0.0.0)

Represents the method that handles the Scroll event of a [ScrollableControl](/api/wisej.web/containers/scrollablecontrol.md), [ScrollBar](/api/wisej.web/content/scrollbar.md), [TrackBar](/api/wisej.web/editors/wisej.web.trackbar.md), or [DataGridView](/api/wisej.web/lists-and-grids/datagridview.md).

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

```csharp
public delegate void ScrollEventHandler(Object sender, ScrollEventArgs e)
```

{% endtab %}

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

```visual-basic
Public Delegate Sub ScrollEventHandler(ByVal sender As [Object], ByVal e As ScrollEventArgs)
```

{% endtab %}
{% endtabs %}

## Parameters

| Name       | Type                                                                             | Description                                                                                                      |
| ---------- | -------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------- |
| **sender** | [Object](https://docs.microsoft.com/dotnet/api/system.object)                    | The source of the event.                                                                                         |
| **e**      | [ScrollEventArgs](/api/wisej.web/content/scrollbar/wisej.web.scrolleventargs.md) | A [ScrollEventArgs](/api/wisej.web/content/scrollbar/wisej.web.scrolleventargs.md) that contains the event data. |

## Fired By

| Name                                                                              | Description                                                                                            |
| --------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ |
| [ScrollableControl.Scroll](/api/wisej.web/containers/scrollablecontrol.md#scroll) | Fired when the user or code scrolls through the client area.                                           |
| [ScrollBar.Scroll](/api/wisej.web/content/scrollbar.md#scroll)                    | Fired when the scroll box has been moved by either a mouse or keyboard action.                         |
| [DataGridView.Scroll](/api/wisej.web/lists-and-grids/datagridview.md#scroll)      | Fired when the user or code scrolls the grid.                                                          |
| [SlideBar.Scroll](/api/wisej.web/containers/wisej.web.slidebar.md#scroll)         | Fired when the [SlideBar](/api/wisej.web/containers/wisej.web.slidebar.md) widget scrolls its content. |
| [ListView.Scroll](/api/wisej.web/lists-and-grids/listview.md#scroll)              | Fired when the user or code scrolls the [ListView](/api/wisej.web/lists-and-grids/listview.md).        |


---

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