SPLimitedWebPartManager.ImportWebPart Method
Imports an XML description file (*.dwp or *.webpart) that contains state and property data for a Web Part, and applies the data to the Web Part.
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: No
[ClientCallableExceptionConstraintAttribute(FixedId = "Microsoft.SharePoint.WebPartPages.WebPartPageUserException$0", ErrorType = typeof(WebPartPageUserException), Condition = "The provided Web Part markup is not in the .dwp or .webpart format.")] public WebPart ImportWebPart( XmlReader reader, out string errorMessage )