public ActionResult RenderTagsOrCategories(RenderModel model, string tagGroup, string baseUrl)
{
var tagPage = model.Content as ArticulateVirtualPage;
if (tagPage == null)
{
throw new InvalidOperationException("The RenderModel.Content instance must be of type " + typeof(ArticulateVirtualPage));
}
//create a blog model of the main page
var rootPageModel = new ListModel(model.Content.Parent);
var contentByTags = Umbraco.GetContentByTags(rootPageModel, tagGroup, baseUrl);
var tagListModel = new TagListModel(
rootPageModel,
tagPage.Name,
rootPageModel.PageSize,
new PostTagCollection(contentByTags));
return(View(PathHelper.GetThemeViewPath(tagListModel, "Tags"), tagListModel));
}