Get-PowerShellDataSource.ps1
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function Get-PowerShellDataSource { <# .Synopsis Gets a new PowerShell data source .Description Gets a new PowerShell data source. PowerShell data sources are used within a WPF application or WPK script to provide data from PowerShell to the UI asynchronously. This allows you to see the output of a long-running script within a UI while it is still running. You can bind this data source to a listbox or listview in order to see its contents .Example New-ListBox -MaxHeight 350 -DataContext { Get-PowerShellDataSource -Script { Get-Process | ForEach-Object { $_ ; Start-Sleep -Milliseconds 100 } } } -DataBinding @{ ItemsSource = New-Binding -IsAsync -UpdateSourceTrigger PropertyChanged -Path Output } -On_Loaded { Register-PowerShellCommand -Run -In "0:0:2.5" -ScriptBlock { $window.Content.DataContext.Script = $window.Content.DataContext.Script } } -asjob #> param( [Parameter(Mandatory=$true,ValueFromPipeline=$true)] [ScriptBlock]$Script, ${Parent} = $this, [System.Management.Automation.ScriptBlock[]] ${On_PropertyChanged}, [System.Management.Automation.ScriptBlock[]] ${On_OutputChanged}, [System.Management.Automation.ScriptBlock[]] ${On_ErrorChanged}, [System.Management.Automation.ScriptBlock[]] ${On_WarningChanged}, [System.Management.Automation.ScriptBlock[]] ${On_DebugChanged}, [System.Management.Automation.ScriptBlock[]] ${On_VerboseChanged}, [System.Management.Automation.ScriptBlock[]] ${On_ProgressChanged}, [System.Management.Automation.ScriptBlock[]] ${On_IsRunningChanged}, [System.Management.Automation.ScriptBlock[]] ${On_IsFinishedChanged}, [System.Management.Automation.ScriptBlock[]] ${On_TimeStampedOutputChanged} ) process { try { $Object = New-Object ShowUI.PowerShellDataSource } catch { throw $_ return } if ($parent) { $Object.Parent = $parent $null = $psBoundParameters.Remove('Parent') } $psBoundParameters.Script = $psBoundParameters.Script -as [string] Set-Property -property $psBoundParameters -inputObject $Object $Object } } |