public static IResource FindOrCreate(FolderDescriptor folderDescriptor, IResource parentFolder) { Guard.NullArgument(folderDescriptor, "folderDescriptor"); IResource MAPIStore = FindOrCreateMAPIStore(folderDescriptor.FolderIDs.StoreId); IResource resFolder = Core.ResourceStore.FindUniqueResource(STR.MAPIFolder, PROP.EntryID, folderDescriptor.FolderIDs.EntryId); if (resFolder != null) { resFolder.BeginUpdate(); } else { resFolder = Core.ResourceStore.BeginNewResource(STR.MAPIFolder); Core.WorkspaceManager.AddToActiveWorkspaceRecursive(resFolder); resFolder.SetProp("EntryID", folderDescriptor.FolderIDs.EntryId); resFolder.SetProp("OwnerStore", MAPIStore); if (OutlookSession.IsDeletedItemsFolder(folderDescriptor.FolderIDs.EntryId)) { resFolder.SetProp(Core.Props.ShowDeletedItems, true); resFolder.SetProp(PROP.DeletedItemsFolder, true); resFolder.SetProp(PROP.DefaultDeletedItems, true); } if (parentFolder != null) { SetIgnored(resFolder, IsIgnored(parentFolder)); } } SetName(resFolder, folderDescriptor.Name); string containerClass = folderDescriptor.ContainerClass; resFolder.SetProp(PROP.PR_STORE_SUPPORT_MASK, folderDescriptor.StoreSupportMask); resFolder.SetProp(PROP.PR_CONTENT_COUNT, folderDescriptor.ContentCount); if (containerClass.Length > 0) { resFolder.SetProp(PROP.ContainerClass, containerClass); } containerClass = resFolder.GetPropText(PROP.ContainerClass); bool visible = (containerClass.Length == 0 || containerClass == FolderType.Mail || containerClass == FolderType.Post || containerClass == FolderType.IMAP || containerClass == FolderType.Dav); resFolder.SetProp(PROP.MAPIVisible, visible); if (parentFolder != null) { SetParent(resFolder, parentFolder); } else { Folder.SetAsRoot(resFolder); } resFolder.EndUpdate(); _resourceTreeManager.SetResourceNodeSort(resFolder, STR.Name); return(resFolder); }