public/list/Clear-UiDataGridItems.ps1
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function Clear-UiDataGridItems { <# .SYNOPSIS Empties a New-UiDataGrid. .DESCRIPTION Empties the row collection on the grid identified by -Variable. Works on both -Items grids and -ItemsSource grids. On -ItemsSource grids your own collection gets cleared too. .PARAMETER Variable The -Variable name passed to the originating New-UiDataGrid. .EXAMPLE Clear-UiDataGridItems -Variable queue #> [CmdletBinding()] param( [Parameter(Mandatory, Position = 0)] [string]$Variable ) $session = Get-UiSession if (!$session) { Write-Error 'Clear-UiDataGridItems: no active PsUi session. Call it from a button action or inside a New-UiWindow.'; return } $collection = $session.GetListCollection($Variable) if ($null -eq $collection) { $keys = $session.GetAllListKeys() -join ', ' Write-Error "DataGrid '$Variable' not found. Known list/grid variables: $keys" return } $collection.Clear() } |