private void LoadMainItemData(XElement itemElement)
		{
			MainItemData = new MainItemData();

			// get data
			MainItemData.Title = GetAttributeValue(itemElement, AttributeTitle, "about");
			MainItemData.AppAuthorLabel = GetAttributeValue(itemElement, AttributeAppAuthorLabel, "by");
			MainItemData.AppPublisherLabel = GetAttributeValue(itemElement, AttributeAppPublisherLabel, "Publisher:");
			MainItemData.AppDescriptionLabel = GetAttributeValue(itemElement, AttributeAppDescriptionLabel, "Description:");
			MainItemData.AppVersionLabel = GetAttributeValue(itemElement, AttributeAppVersionLabel, "Version:");
			MainItemData.AppAdditionalNotesLabel = GetAttributeValue(itemElement, AttributeAppAdditionalNotesLabel, "Additional notes:");
			MainItemData.AppReviewButtonContent = GetAttributeValue(itemElement, AttributeAppReviewButtonContent) ?? "Review this app!";
			MainItemData.AppBuyButtonContent = GetAttributeValue(itemElement, AttributeAppBuyButtonContent) ?? "Buy this app!";

			RaisePropertyChanged("MainItemData");
			// load all links
			var linkElements = itemElement.Descendants(ElementLink);
			foreach (var linkElement in linkElements)
			{
				var link = LoadLinkData(linkElement);
				Links.Add(link);
			}
		}
		private void LoadDesignData()
		{
			// get the data from the manifest file
			ApplicationTitle = "Application Title";
			ApplicationTitleUpper = "APPLICATION TITLE";
			ApplicationProductId = "Application.Id";
			ApplicationDescription = "Application Description Lorem Ipsum";
			ApplicationVersion = "AppVersion";
			ApplicationAuthor = "Application Author";
			ApplicationPublisher = "Application Publisher";

			MainItemData = new MainItemData();
			MainItemData.AppAuthorLabel = "Application Author";
			MainItemData.AppPublisherLabel = "Publisher";

			RaisePropertyChanged("MainItemData");
		}