# TreeNodeMouseHoverEventHandler

Namespace: **Wisej.Web**

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

Represents the method that will handle the [NodeMouseHover](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/..#nodemousehover) event of a [TreeView](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview).

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

```csharp
public delegate void TreeNodeMouseHoverEventHandler(Object sender, TreeNodeMouseHoverEventArgs e)
```

{% endtab %}

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

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

{% endtab %}
{% endtabs %}

## Parameters

| Name       | Type                                                                                                                               | Description                                                                                                                                                        |
| ---------- | ---------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **sender** | [Object](https://docs.microsoft.com/dotnet/api/system.object)                                                                      | The source of the event.                                                                                                                                           |
| **e**      | [TreeNodeMouseHoverEventArgs](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/wisej.web.treenodemousehovereventargs) | A [TreeNodeMouseHoverEventArgs](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/wisej.web.treenodemousehovereventargs) that contains the event data. |

## Fired By

| Name                                                                                                              | Description                                                                                                                      |
| ----------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------- |
| [TreeNode.NodeMouseHover](https://docs.wisej.com/api/wisej.web/lists-and-grids/wisej.web.treenode#nodemousehover) | Fired when the mouse hovers over a [TreeNode](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/wisej.web.treenode). |
| [TreeNode.NodeMouseLeave](https://docs.wisej.com/api/wisej.web/lists-and-grids/wisej.web.treenode#nodemouseleave) | Fired when the mouse leaves the [TreeNode](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/wisej.web.treenode).    |
| [TreeView.NodeMouseHover](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/..#nodemousehover)        | Fired when the mouse hovers over a [TreeNode](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/wisej.web.treenode). |
| [TreeView.NodeMouseLeave](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/..#nodemouseleave)        | Fired when the mouse leaves the [TreeNode](https://docs.wisej.com/api/wisej.web/lists-and-grids/treeview/wisej.web.treenode).    |