> For the complete documentation index, see [llms.txt](https://docs.devolutions.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.devolutions.net/powershell-universal/fr/commandes-powershell/new-udtreeview.md).

# New-UDTreeView

New-UDTreeView construit une arborescence hiérarchique d'éléments New-UDTreeNode extensibles dans PowerShell Universal pour naviguer dans des structures de données imbriquées.

### Résumé

Crée une nouvelle vue arborescente.

### Syntaxe

```powershell
New-UDTreeView [[-Id] <String>] [-Node] <ScriptBlock> [[-OnNodeClicked] <Endpoint>] [[-Style] <Hashtable>] [[-ClassName] <String>] [-Expanded] [-PreventCollapse] [<CommonParameters>]
```

### Description

Crée une nouvelle vue arborescente.

### Paramètres

#### -Id

L'ID du composant. Il s'agit par défaut d'un GUID aléatoire.

```
Required?                    false
Position?                    1
Default value                [Guid]::NewGuid()
Accept pipeline input?       false
Aliases
Accept wildcard characters?  false
```

#### -Node

Une collection de nœuds racines à afficher dans la vue arborescente.

```
Required?                    true
Position?                    2
Default value
Accept pipeline input?       false
Aliases
Accept wildcard characters?  false
```

#### -OnNodeClicked

Un bloc de script qui est appelé lorsqu'un nœud est cliqué. $EventData contiendra le nœud qui a été cliqué.

```
Required?                    false
Position?                    3
Default value
Accept pipeline input?       false
Aliases
Accept wildcard characters?  false
```

#### -Style

Un ensemble de styles CSS à appliquer à la vue arborescente.

```
Required?                    false
Position?                    4
Default value
Accept pipeline input?       false
Aliases
Accept wildcard characters?  false
```

#### -ClassName

Un className CSS à appliquer à la vue arborescente.

```
Required?                    false
Position?                    5
Default value
Accept pipeline input?       false
Aliases
Accept wildcard characters?  false
```

#### -Expanded

Indique si la vue arborescente doit être développée par défaut.

```
Required?                    false
Position?                    named
Default value                False
Accept pipeline input?       false
Aliases
Accept wildcard characters?  false
```

#### -PreventCollapse

Empêche la vue arborescente de se réduire lorsqu'un nœud est cliqué. Suppose -Expanded.

```
Required?                    false
Position?                    named
Default value                False
Accept pipeline input?       false
Aliases
Accept wildcard characters?  false
```

#### Paramètres communs

Cette applet de commande prend en charge les paramètres communs : Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, WarningVariable, OutBuffer, PipelineVariable et OutVariable. Pour plus d'information, voir [about\_CommonParameters](https://go.microsoft.com/fwlink/?LinkID=113216).

### Sorties

### Exemples

#### Exemple 1 : Vue arborescente

```powershell
New-UDTreeView -Node {
    New-UDTreeNode -Name "Root Node" -Id "root1" -Children {
        New-UDTreeNode -Name "Child Node" -Id "child1" -Children {
            New-UDTreeNode -Name "Grandchild Node" -Id "grandchild1" -Leaf
        }
        New-UDTreeNode -Name "Child Node 2" -Id "child2" -Children {
            New-UDTreeNode -Name "Grandchild Node 2" -Id "grandchild2" -Leaf
        }
    }
} -Id "treeview1"
```

Un composant de vue arborescente de base.

#### Exemple 2 : OnNodeClicked

```powershell
New-UDTreeView -Node {
    New-UDTreeNode -Name "Root Node" -Id "root2" -Children {
        New-UDTreeNode -Name "Child Node" -Id "child3" -Children {
            New-UDTreeNode -Name "Grandchild Node" -Id "grandchild3" -Leaf
        }
        New-UDTreeNode -Name "Child Node 2" -Id "child4" -Children {
            New-UDTreeNode -Name "Grandchild Node 2" -Id "grandchild4"
        }
    }
} -Id "treeview2" -OnNodeClicked {
    Show-UDToast -Message "You clicked $($EventData.Id)"
}
```

Une vue arborescente avec un bloc de script OnNodeClicked qui affiche une notification lorsqu'un nœud est cliqué.

#### Exemple 3 : Expanded

```powershell
New-UDTreeView -Node {
    New-UDTreeNode -Name "Root Node" -Id "root3" -Children {
        New-UDTreeNode -Name "Child Node" -Id "child5" -Children {
            New-UDTreeNode -Name "Grandchild Node" -Id "grandchild5"  -Leaf
        }
        New-UDTreeNode -Name "Child Node 2" -Id "child6" -Children {
            New-UDTreeNode -Name "Grandchild Node 2" -Id "grandchild6"  -Leaf
        }
    }
} -Id "treeview3" -Expanded
```

Une vue arborescente qui est développée par défaut.

#### Exemple 4 : OnNodeClicked

```powershell
New-UDTreeView -Node {
    New-UDTreeNode -Name "Root Node" -Id "root4"
} -Id "treeview4" -OnNodeClicked {
    New-UDTreeNode -Name "Child Node"
}
```

Une vue arborescente avec un bloc de script OnNodeClicked qui ajoute un nœud enfant lorsqu'un nœud est cliqué.

#### Exemple 5 : Icônes

```powershell
New-UDTreeView -Node {
    New-UDTreeNode -Name "Root Node" -Id "root5" -Children {
        New-UDTreeNode -Name "Child Node" -Id "child7" -Children {
            New-UDTreeNode -Name "Grandchild Node" -Id "grandchild7" -Leaf -Icon (New-UDIcon -Icon "File")
        } -Icon (New-UDIcon -Icon "Folder") -ExpandedIcon (New-UDIcon -Icon "FolderOpen")
        New-UDTreeNode -Name "Child Node 2" -Id "child8" -Children {
            New-UDTreeNode -Name "Grandchild Node 2" -Id "grandchild8" -Leaf -Icon (New-UDIcon -Icon "File")
        } -Icon (New-UDIcon -Icon "Folder") -ExpandedIcon (New-UDIcon -Icon "FolderOpen")
    }
} -Id "treeview5" -Expanded
```

Une vue arborescente avec des icônes pour les nœuds.

#### Exemple 6 : PreventCollapse

```powershell
New-UDTreeView -Node {
    New-UDTreeNode -Name "Root Node" -Id "root6" -Children {
        New-UDTreeNode -Name "Child Node" -Id "child9" -Children {
            New-UDTreeNode -Name "Grandchild Node" -Id "grandchild9"  -Leaf
        }
        New-UDTreeNode -Name "Child Node 2" -Id "child10" -Children {
            New-UDTreeNode -Name "Grandchild Node 2" -Id "grandchild10"  -Leaf
        }
    }
} -Id "treeview3" -Expanded -PreventCollapse
```

Une vue arborescente qui est développée par défaut et qui empêche la réduction lorsqu'un nœud est cliqué.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://docs.devolutions.net/powershell-universal/fr/commandes-powershell/new-udtreeview.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.