public static void DeleteAllThenAddWebPartToPage(SPFile page, string wpXml, string wpZone)
{
using (SPLimitedWebPartManager wpMgr = page.GetLimitedWebPartManager(System.Web.UI.WebControls.WebParts.PersonalizationScope.Shared))
{
// Delete all web parts
// Play the shell game because you can't delete from a collection in an enumerator
List <WebPart> wpList = new List <WebPart>();
foreach (WebPart wp in wpMgr.WebParts)
{
wpList.Add(wp);
}
foreach (WebPart wp in wpList)
{
wpMgr.DeleteWebPart(wp);
}
// Add our new web part
XmlDocument doc = new XmlDocument();
doc.LoadXml(wpXml);
using (XmlNodeReader reader = new XmlNodeReader(doc))
{
string errorMessage = null;
System.Web.UI.WebControls.WebParts.WebPart wp = wpMgr.ImportWebPart(reader, out errorMessage);
wpMgr.AddWebPart(wp, wpZone, wp.ZoneIndex);
}
}
}
private static System.Web.UI.WebControls.WebParts.WebPart ResolveWebPartInstance(SPSite site,
SPLimitedWebPartManager webPartManager,
WebPartDefinition webpartModel)
{
System.Web.UI.WebControls.WebParts.WebPart webpartInstance = null;
if (!string.IsNullOrEmpty(webpartModel.WebpartType))
{
var webPartType = Type.GetType(webpartModel.WebpartType);
webpartInstance = Activator.CreateInstance(webPartType) as System.Web.UI.WebControls.WebParts.WebPart;
}
else if (!string.IsNullOrEmpty(webpartModel.WebpartFileName))
{
var webpartFileName = webpartModel.WebpartFileName;
var rootWeb = site.RootWeb;
// load definition from WP catalog
var webpartCatalog = rootWeb.GetCatalog(SPListTemplateType.WebPartCatalog);
var webpartItem = webpartCatalog.Items.OfType <SPListItem>().FirstOrDefault(
i => string.Compare(i.Name, webpartFileName, true) == 0);
if (webpartItem == null)
{
throw new ArgumentException(string.Format("webpartItem. Can't find web part file with name: {0}", webpartFileName));
}
using (var streamReader = new MemoryStream(webpartItem.File.OpenBinary()))
{
using (var xmlReader = XmlReader.Create(streamReader))
{
var errMessage = string.Empty;
webpartInstance = webPartManager.ImportWebPart(xmlReader, out errMessage);
if (!string.IsNullOrEmpty(errMessage))
{
throw new ArgumentException(
string.Format("Can't import web part foe with name: {0}. Error: {1}", webpartFileName, errMessage));
}
}
}
}
else if (!string.IsNullOrEmpty(webpartModel.WebpartXmlTemplate))
{
var stringBytes = Encoding.UTF8.GetBytes(webpartModel.WebpartXmlTemplate);
using (var streamReader = new MemoryStream(stringBytes))
{
using (var xmlReader = XmlReader.Create(streamReader))
{
var errMessage = string.Empty;
webpartInstance = webPartManager.ImportWebPart(xmlReader, out errMessage);
if (!string.IsNullOrEmpty(errMessage))
{
throw new ArgumentException(
string.Format("Can't import web part for XML template: {0}. Error: {1}",
webpartModel.WebpartXmlTemplate, errMessage));
}
}
}
}
else
{
throw new Exception("Either WebpartType or WebpartFileName or WebpartXmlTemplate needs to be defined.");
}
return(webpartInstance);
}
