Public Sub ExportWebPart ( _
    webPart As WebPart, _
    writer As XmlWriter _
)

Dim instance As SPLimitedWebPartManager
Dim webPart As WebPart
Dim writer As XmlWriter

instance.ExportWebPart(webPart, writer)

public void ExportWebPart (
    WebPart webPart,
    XmlWriter writer
)

Parameters

webPart

writer

If the Web Part derives from Microsoft.SharePoint.WebPartPages.WebPart, and does not use features from System.Web.UI.WebControls.WebParts.WebPart, such as the System.Web.UI.WebControls.WebParts.PersonalizableAttribute, it serializes as a *.dwp file.

If the Web Part derives from System.Web.UI.WebControls.WebParts.WebPart, or derives from Microsoft.SharePoint.WebPartPages.WebPart, but does use certain key features from System.Web.UI.WebControls.WebParts.WebPart, then it serializes as a *.webpart file.