PowerShell调用SharePoint web service遍历/修改List（列表）数据

昨天在检测一段PowerShell代码，调用SharePoint List Web Servicel来查看List items，修改一个List item值时，总是报错，前后检查一个多小时，都没有发现错误原因， 今天早上来一看，才发现，是因为batch file内容的"Cmd='Update'",被我不小心写成了"cmd='Update'", 因为一个字母的大小写，纠结了一个多小时，拿出来跟大家分享一下：

代码：

#test update list item using web service

$uri = 'http://v-qiwei:100/site1/_vti_bin/lists.asmx?wsdl'
$listName = 'List_11' #the list name in the site

# define query object to retrieve list items.
$xmlDoc = new-object System.Xml.XmlDocument
$query = $xmlDoc.CreateElement("Query")
$viewFields = $xmlDoc.CreateElement("ViewFields")
$queryOptions = $xmlDoc.CreateElement("QueryOptions")
$query.set_InnerXml("FieldRef Name='Full Name'")
$rowLimit = "1000"

$list = $null
$service = $null

#create service object
try{
$service = New-WebServiceProxy -Uri $uri  -Namespace SpWs  -UseDefaultCredential
}
catch [Exception] {
return $_.Exception.Message
}

# use the service object to retrieve the list.
if($service -ne $null){
try{
$list = $service.GetListItems($listName, "", $query, $viewFields, $rowLimit, $queryOptions, "")
}
catch [Exception] {
return $_.Exception.Message
}
}

# check the retrieved list item
($list.data.row).count

# Get Guids of the list the view
$ndlistview = $service.getlistandview($listname, "")
$strlistid = $ndlistview.childnodes.item(0).name
$strviewid = $ndlistview.childnodes.item(1).name

write-host $strlistid
write-host $strviewid

# Create an xmldocument objec
$xmldoctest = new-object system.xml.xmldocument

# create a batch file
$batchelement = $xmldoctest.CreateElement("Batch")
$batchelement.SetAttribute("OnError","Continue")
$batchelement.SetAttribute("ListVersion","1")
$batchelement.SetAttribute("ViewName",$strviewid)

$xml = ""
$xml+="<Method ID='1' Cmd='Update'>"+
"<Field Name='ID'>1</Field>"+
"<Field Name='Title'>TestTitle</Field>"+
"</Method>"

# Set the xml content
$batchelement.innerxml = $xml

write-host $batchelement.innerxml
try{
$service.UpdateListItems($strlistid, $batchelement)
} catch [Exception] {
return $_.Exception.Message
}

如果xml 大小写有问题的话，扑捉异常后，就会有exception：

Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' was thrown.

没有扑捉异常的情况下，exception：

Exception calling "UpdateListItems" with "2" argument(s): "Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' was thrown."
At line:72 char:37
+ $ndreturn = $service.UpdateListItems <<<< ($strlistid, $batchelement)
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : DotNetMethodException