具有运行空间池的SessionStateProxy变量 [英] SessionStateProxy Variable with Runspace Pools

问题描述

我想在PowerShell中使用运行空间池来执行后台操作.但是我需要从主线程访问WPF窗口变量.

I wanted to use a Runspace Pool in PowerShell to perform Background actions. But I need to access the WPF Window Variable from the Main Thread.

普通运行空间可以选择:

Normal Runspaces have the option:

$runspace.SessionStateProxy.SetVariable('xamGUI',$xamGUI)

但是如何使用RunspacePool进行相同操作?

But how do I do the same with a RunspacePool?

推荐答案

将一个变量添加到运行空间池中要花点时间，但是仍然可以实现.您将需要创建一个InitialSessionState对象，然后创建一个SessionStateVariableEntry对象，其中包含要添加到运行空间池中的变量.

It is a little more involved to add a variable to a runspacepool, but still definitely doable. You will need to create an InitialSessionState object and then create a SessionStateVariableEntry object that contains the variable that you want to add to the runspacepool.

[int]$Test = 123498765
#Create the sessionstate variable entry
$Variable = New-object System.Management.Automation.Runspaces.SessionStateVariableEntry -ArgumentList 'Test',$Test,$Null
$InitialSessionState = [System.Management.Automation.Runspaces.InitialSessionState]::CreateDefault()

#Add the variable to the sessionstate
$InitialSessionState.Variables.Add($Variable)

#Create the runspacepool using the defined sessionstate variable
$RunspacePool = [runspacefactory]::CreateRunspacePool(1,$Throttle,$InitialSessionState,$Host)

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