Question

拥有以下脚本：

$query = "<CLAUSE OPER=""equals""><PROPERTY ID=""OrderForm.Status"" TYPE=""STRING"" MULTIVAL=""false"" /><IMMED-VAL TYPE=""STRING""><VALUE>Complete</VALUE></IMMED-VAL></CLAUSE>"
$queryxml = [xml]$query

$so = New-Object Microsoft.PowerShell.Commands.NewWebserviceProxy.AutogeneratedTypes.WebServiceProxy1bService_OrdersWebService_asmx.SearchOptions
$so.NumberOfRecordsToReturn = 1

$req = $ws.SearchPurchaseOrders($queryxml,$so)

执行时，我收到此错误：

Cannot convert argument "searchClause", with value: "System.Xml.XmlDocument", for "SearchPurchaseOrders" to type "System.Xml.XmlElement": "Cannot convert the "System.Xml.XmlDocument" value 
of type "System.Xml.XmlDocument" to type "System.Xml.XmlElement"."
At line:10 char:1
+ $req = $ws.SearchPurchaseOrders($queryxml,$so)

xml没什么问题。我需要名称空间或其他东西吗？

Answer 1

根据错误判断，SearchPurchaseOrders期望获得XmlElement，但是您传递XmlDocument并且PowerShell无法转换它。您可以使用DocumentElement属性获取XML文档的根元素：

$req = $ws.SearchPurchaseOrders($queryxml.DocumentElement,$so)

无法将字符串转换为xmlelement

1 个答案: