Powershell，Web服务和对象类型-Powershell,webservicesandobjecttypes

I'm new to using web services under powershell, so maybe I have a basic misunderstanding about something. I'm working with Microsoft's Reporting Services. Here is a repro script.

我刚接触PowerShell下的web服务,所以也许我对某些事情有一个基本的误解。我正在使用Microsoft的Reporting Services。这是一个repro脚本。

$computer = "rptdev"
$uri = "http://$($computer)/ReportServer/ReportService.asmx?WSDL"

$reporting = New-WebServiceProxy -uri $uri -UseDefaultCredential -namespace "ReportingWebService"

$dsRef = new-object ReportingWebService.DataSourceReference
$ds = new-object ReportingWebService.DataSource

$dsRef.GetType()
$ds.GetType()

If I run that, I get something that looks more or less like this:

如果我运行它,我得到的东西看起来或多或少像这样:

Name                BaseType
----                --------
DataSourceReference ReportingWebService.DataSourceDefinitionOrReference
DataSource          System.Object

So, my question is: Why does DataSource have System.Object as a BaseType when DataSourceReference clearly has a object type that is based on the web object? They were both created from the ReportingWebService namespace, weren't they?

所以,我的问题是:当DataSourceReference明显具有基于Web对象的对象类型时,为什么DataSource将System.Object作为BaseType?它们都是从ReportingWebService命名空间创建的,不是吗?

My root problem is that I need to hand an array of DataSources back to SetItemDataSources, and SetItemDataSources chokes on an array of System.Objects, and I don't seem to be able to cast it to what I want.

我的根本问题是我需要将一个DataSource数组交给SetItemDataSources,并在System.Objects数组上使用SetItemDataSources choke,我似乎无法将它转换为我想要的。

2 个解决方案

$computer = "rptdev"
$uri = "http://$($computer)/ReportServer/ReportService.asmx?WSDL"

$reporting = New-WebServiceProxy -uri $uri -UseDefaultCredential -namespace "ReportingWebService"

[ReportingWebService.DataSource[]]$DataSources = 
$reporting.SetItemDataSources($DataSources)

ps> $o = new-object mynamespace.myobj
ps> $thing.Method( @($o) )