SharePoint-将web部件从模板网站克隆到新网站-XML错误

不知道从哪里开始。我有代码设置来创建一个新网站，然后从模板网站复制外观、列表和Web部件。

以系统管理员身份登录时工作正常

foreach (Microsoft.SharePoint.WebPartPages.WebPart webPartTemplate in webPartCollectionTemplate)
{
  try
  {
MemoryStream memoryStream = new MemoryStream();
XmlTextWriter xmlWriter = new XmlTextWriter(memoryStream, Encoding.UTF8);
webPartManagerTemplate.ExportWebPart(webPartTemplate, xmlWriter);
xmlWriter.Flush();
memoryStream.Flush();
memoryStream.Position = 0;
XmlTextReader xmlReader = new XmlTextReader(memoryStream);
Microsoft.SharePoint.WebPartPages.ListViewWebPart listViewWebPartTemplate = null;
Microsoft.SharePoint.WebPartPages.ListViewWebPart listViewWebPartTarget = null;
Microsoft.SharePoint.WebPartPages.WebPart webPartTarget = null;
bool webPartIsListViewWebPart = false;
// If it throws an exception, the web part is not a ListViewWebPart
try
{
  listViewWebPartTemplate = (ListViewWebPart)webPartTemplate;
  webPartIsListViewWebPart = true;
}
catch { }
if (webPartIsListViewWebPart)
{
  string errorMessage = "";
  listViewWebPartTarget = (Microsoft.SharePoint.WebPartPages.ListViewWebPart)webPartManagerTarget.ImportWebPart(xmlReader, out errorMessage);
  if (errorMessage != null)
    // log it
  // Drop the brackets from the Guid and create a Guid object from the string. Then use it to find the list so we can get the title.
  SPList listTemplate = webTemplate.Lists[new Guid(listViewWebPartTemplate.ListName.ToString().TrimStart('{').TrimEnd('}'))];
  SPList listTarget = webTarget.Lists[listTemplate.Title];
  listViewWebPartTarget.ListName = listTarget.ID.ToString("B").ToUpper();
  listViewWebPartTarget.WebId = webTarget.ID;
  listViewWebPartTarget.TitleUrl = webPartTemplate.TitleUrl.ToString().Replace(siteTemplate.ServerRelativeUrl, siteTarget.ServerRelativeUrl);
  listViewWebPartTarget.Title = webPartTemplate.Title;
  listViewWebPartTarget.ZoneID = webPartTemplate.ZoneID;
  webPartDictTarget.Add(listViewWebPartTarget.ZoneID + webPartTemplate.ZoneIndex.ToString(), listViewWebPartTarget);
}
else
{
  string errorMessage = "";
  webPartTarget = (Microsoft.SharePoint.WebPartPages.WebPart)webPartManagerTarget.ImportWebPart(xmlReader, out errorMessage);
  if (errorMessage != null)
    // log it
  webPartTarget.ChromeType = webPartTemplate.ChromeType;
  webPartTarget.TitleUrl = webPartTemplate.TitleUrl.ToString().Replace(siteTemplate.ServerRelativeUrl, siteTarget.ServerRelativeUrl);
  webPartTarget.Title = webPartTemplate.Title;
  webPartTarget.ZoneID = webPartTemplate.ZoneID;
  webPartDictTarget.Add(webPartTarget.ZoneID + webPartTemplate.ZoneIndex.ToString(), webPartTarget);
}
  }
  catch (Exception ex)
  {
  }
}
// Acquire keys and sort them.
List<string> list = new List<string>(webPartDictTarget.Keys);
list.Sort();
// Loop through keys.
int i = 0;
foreach (var key in list)
{
  try
  {
    Microsoft.SharePoint.WebPartPages.WebPart wpTmp = (Microsoft.SharePoint.WebPartPages.WebPart)webPartDictTarget[key];
    webPartManagerTarget.AddWebPart(wpTmp, wpTmp.ZoneID, i);
  }
  catch (Exception ex)
  {
  }
  i++;
}

错误出现在以下行：

webPartManagerTarget.AddWebPart(wpTmp, wpTmp.ZoneID, i);

堆栈跟踪如下｛"生成XML文档时出错。"｝：

位于System.Xml.Serialization.XmlSerializer.Serialize（XmlWriterxmlWriter，对象o，XmlSerializerNamespaces命名空间，字符串encodingStyle，字符串id）System.Xml.Serialization.XmlSerializer.Serialize（XmlWriter XmlWriter，对象o）位于Microsoft.SharePoint.WebPartPages.WebPart.SerializeXml（XmlWriterwriter、XmlSerializer xmls、Boolean shouldSerializeAll）Microsoft.SharePoint.WebPartPages.WebPart.WriteXmlAsBytes（XmlSerializerxmls）Microsoft.SharePoint.WebPartPages.WebPart.WriteXmlGlobal（布尔值disableSafeControlsCheck）Microsoft.SharePoint.WebPartPages.BinaryWebPartSerializer.Serialize（PersonalizationScope范围）Microsoft.SharePoint.WebPartPages.BinaryWebPartSerializer.get_Links（）在Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartToStore（WebPartwebPart、Int32 viewId、String viewGuid）Microsoft.SharePoint.WebPartPages.SPWebPartManager.AddWebPartInternal（SPSupersetWebPart超集，布尔throwIfLocked）Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager.AddWebPartInternal（WebPartwebPart、String zoneId、Int32 zoneIndex、布尔throwIfLocked）Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager.AddWebPart（WebPartwebPart，String zoneId，Int32 zoneIndex）admSitePanelSolution.admSiteCreateCollection。<>c_DisplayClasse.b_c（）

并且InnerException｛"访问被拒绝。（HRESULT:0x80070005（E_ACCESSDENIED）中的异常）"｝：

在Microsoft.SharePoint.SPGlobal.HHandleUnauthorizedAccessException（未授权访问异常ex）Microsoft.SharePoint.Library.SPRequest.GetViewsSchemaXml（字符串bstrUrl，字符串bstrListName，布尔值bFullBlown，ISP2DSafeArrayWriterp2D编写器，Int32&plDefaultViewIndex）Microsoft.SharePoint.SViewCollection.EnsureViewSchema（布尔值fullBlownSchema）位于的Microsoft.SharePoint.SViewCollection.ctor（SPList列表）位于的Microsoft.SharePoint.SPList.get_Views（）位于的Microsoft.SharePoint.SPList.get_DefaultView（）位于的Microsoft.SharePoint.SPList.get_DefaultViewUrl（）Microsoft.SharePoint.WebPartPages.ListViewWebPart.HShouldSerializeDetailLink（）在Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterListViewWebPart.Write9_ListViewWebPart（字符串n、 字符串ns，ListViewWebPart o，布尔值isNullable，布尔值needType）在Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriterListViewWebPart.Write10_WebPart（对象o）

有人能提供一些帮助，说明为什么在没有以系统管理员身份登录时会发生这种情况吗。整个区块也在提升的权限内运行，SPSite和SPWeb也在提升区块内实例化。这段代码是摘录。

更新

如果我让用户成为基本网站集的网站集所有者，那么上面的代码运行良好。因此，上面代码中的内容重置上下文或需要引用基本网站集。非常感谢。

HttpContext currentContext = HttpContext.Current;
HttpContext.Current = null;
listViewWebPartTarget = (Microsoft.SharePoint.WebPartPages.ListViewWebPart)webPartManagerTarget.ImportWebPart(xmlReader, out errorMessage);
HttpContext.Current = currentContext;