> 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/es/aplicaciones/components/inputs/select.md).

# Selector

Cree listas desplegables de selección en aplicaciones de PowerShell Universal con opciones agrupadas, selección única o múltiple y gestión de eventos de cambio.

Los componentes select se utilizan para recopilar información proporcionada por el usuario a partir de una lista de opciones.

## Select simple

Cree un select simple con múltiples opciones.

```powershell
New-UDSelect -Option {
    New-UDSelectOption -Name 'One' -Value 1
    New-UDSelectOption -Name 'Two' -Value 2
    New-UDSelectOption -Name 'Three' -Value 3
}
```

## Select agrupado

Cree un select con grupos de selecciones.

```powershell
New-UDSelect -Option {
    New-UDSelectGroup -Name 'Group One' -Option {
        New-UDSelectOption -Name 'One' -Value 1
        New-UDSelectOption -Name 'Two' -Value 2
        New-UDSelectOption -Name 'Three' -Value 3
    }
    New-UDSelectGroup -Name 'Group Two' -Option {
        New-UDSelectOption -Name 'Four' -Value 4
        New-UDSelectOption -Name 'Five' -Value 5
        New-UDSelectOption -Name 'Size' -Value 6
    }
}
```

## OnChange

Ejecute un controlador de eventos de PowerShell cuando cambie el valor del select. $EventData\[0] para el único elemento que se seleccionó.

```powershell
New-UDSelect -Option {
    New-UDSelectOption -Name 'One' -Value 1
    New-UDSelectOption -Name 'Two' -Value 2
    New-UDSelectOption -Name 'Three' -Value 3
} -OnChange { Show-UDToast -Message $EventData[0] }
```

## Select múltiple

Ejecute un controlador de eventos de PowerShell cuando cambie más de un valor del select. $EventData es un array de los elementos seleccionados.

```powershell
New-UDSelect -Multiple -Option {
    New-UDSelectOption -Name 'One' -Value 1
    New-UDSelectOption -Name 'Two' -Value 2
    New-UDSelectOption -Name 'Three' -Value 3
} -OnChange { 
    Show-UDToast -Message (ConvertTo-json -InputObject $EventData) 
}
```

## Get-UDElement

Recupere el valor del select desde otro componente.

```powershell
  New-UDSelect -Option {
      New-UDSelectOption -Name 'One' -Value 1
      New-UDSelectOption -Name 'Two' -Value 2
      New-UDSelectOption -Name 'Three' -Value 3
  } -Id 'select' -DefaultValue 2

  New-UDButton  -Text 'OnBoard' -OnClick {
    $Element = Get-UDElement -Id 'select'
    if ($Element.Value)
    {
      Show-UDToast -Message $Element.Value
    }
    else 
    {
      Show-UDToast -Message $Element.DefaultValue
    }
  }
```

## API

* [New-UDSelect](/powershell-universal/es/comandos-de-powershell/new-udselect.md)
* [New-UDSelectOption](/powershell-universal/es/comandos-de-powershell/new-udselectoption.md)
* [New-UDSelectGroup](/powershell-universal/es/comandos-de-powershell/new-udselectgroup.md)

***

###


---

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