I am getting this in my stack trace

I removed the "using uComponents.Core.uQueryExtensions", that did not work. What would be an alternative to my query

nodesList = uQuery.GetRootNode().GetDescendantNodes().Where(x => x.HasProperty("alternateAuthor") && x.NodeTypeAlias == "ScienceResearchUpdatesPost" && umbraco.BusinessLogic.User.GetUser(x.GetPropertyAsInt("alternateAuthor")).Name == Request.QueryString["altAuthor"]).OrderByDescending(x => x.GetPropertyAsDateTime(postDateProperty ));

Because it is not working. Am I missing something in my Umbraco build? Very frustrated, what is going on?

HI Carlos,

The namespace to reference uQuery (in Umbraco 4.8+ core) is:

@using umbraco;

Cheers, Lee.

@Lee,

Thank for the response. But still got nothing.  I added the @using umbraco; and that still did not work. I am still getting the same error. Is there a DLL or something in one of the config files that ABSOLUTELY has to be there for the uQuery stuff to work?   

d:\WebSites\dmns.org\macroScripts\634862466553870904_DWTListOfPosts.cshtml(127): error CS1928: 'umbraco.presentation.nodeFactory.Node' does not contain a definition for 'HasProperty' and the best extension method overload 'uComponents.Core.uQueryExtensions.ContentExtensions.HasProperty(umbraco.cms.businesslogic.Content, string)' has some invalid arguments

This is my using list.

@using System.Linq;
@using System.Xml.Linq;
@using umbraco;
@using umbraco.BusinessLogic;
@using umbraco.MacroEngines;
@inherits umbraco.MacroEngines.DynamicNode
@inherits umbraco.MacroEngines.DynamicNodeContext
@inherits DynamicNodeContext
@using umbraco.cms.businesslogic.datatype
@using System.Xml.XPath
@using DWTBlog;
@using uComponents (Note: tried it without this too.)

For good measure, here is my code I am trying to work with since the upgrade. I have taking out the @using uComponents.Core and added the @using umbraco

@using umbraco
@using System.Linq;
@using System.Xml.Linq;
@using umbraco.BusinessLogic;
@using umbraco.MacroEngines;
@inherits umbraco.MacroEngines.DynamicNode
@inherits umbraco.MacroEngines.DynamicNodeContext
@inherits DynamicNodeContext
@using umbraco.cms.businesslogic.datatype
@using System.Xml.XPath
@using DWTBlog;

@{
  IEnumerable<umbraco.presentation.nodeFactory.Node> nodesList = null;
  // configuration
  var itemsPerPage = String.IsNullOrEmpty(Parameter.ItemsPerPage) ? 3 : int.Parse(Parameter.ItemsPerPage); 
  var previousLabel = String.IsNullOrEmpty(Parameter.PreviousLabel) ? "Prev" : Parameter.PreviousLabel;
  var nextLabel = String.IsNullOrEmpty(Parameter.NextLabel) ? "Next" : Parameter.NextLabel;
  var postDateProperty = "dwtBlogPostDate"; // change to "dwtBlogPostDate" for live site

  int currentPage = 1;
  if (!int.TryParse(HttpContext.Current.Request.QueryString["Page"], out currentPage)) {
    currentPage = 1;
  }

  // paging calculations
  currentPage--;

  @*// XPATH properties to get prevalues of Categories*@


  @*AUTHORS*@
  if(!String.IsNullOrEmpty(Request.QueryString["author"])){
      nodesList = uQuery.GetRootNode().GetDescendantNodes().Where(x => x.NodeTypeAlias == "ScienceResearchUpdatesPost" && x.CreatorName == Request.QueryString["author"]).OrderByDescending(x => x.CreateDate);
      <h3>(hit Author) This many hits for author: @nodesList.Count()</h3>
      int skipThisMany = currentPage*itemsPerPage;
      int loadThisMany = itemsPerPage;
      @PostListings2(nodesList.Skip(skipThisMany).Take(loadThisMany), postDateProperty );                                                     
   }
  @*Alternate Author*@
  else if(!String.IsNullOrEmpty(Request.QueryString["altAuthor"])){
    nodesList = uQuery.GetRootNode().GetDescendantNodes().Where(x => x.HasProperty("alternateAuthor") && x.NodeTypeAlias == "ScienceResearchUpdatesPost" && umbraco.BusinessLogic.User.GetUser(x.GetPropertyAsInt("alternateAuthor")).Name == Request.QueryString["altAuthor"]).OrderByDescending(x => x.GetPropertyAsDateTime(postDateProperty ));
    <h3>This many hits for author @Request.QueryString["altAuthor"]: @nodesList.Count()</h3>
    int skipThisMany = currentPage*itemsPerPage;
    int loadThisMany = itemsPerPage;
    @PostListings2(nodesList.Skip(skipThisMany).Take(loadThisMany), postDateProperty );                                        
 }
  @*CATEGORIES*@
  else if(!String.IsNullOrEmpty(Request.QueryString["category"])){
    nodesList = @DWTBlog.ListOfPosts.GetListOfNodes(uQuery.GetRootNode().GetDescendantNodes().Where(x => x.NodeTypeAlias == "ScienceResearchUpdatesPost").OrderByDescending(x => x.GetPropertyAsDateTime(postDateProperty)), Request.QueryString["category"]);
    <h3>Articles in category @Request.QueryString["category"]: @nodesList.Count()</h3>
    int skipThisMany = currentPage*itemsPerPage;
    int loadThisMany = itemsPerPage;
    @PostListings2(nodesList.Skip(skipThisMany).Take(loadThisMany), postDateProperty );                                        
 }
  @*DATES*@ 
  else if(!String.IsNullOrEmpty(Request.QueryString["archive"])){
    nodesList = @DWTBlog.ListOfPosts.GetNodesByMonth(uQuery.GetRootNode().GetDescendantNodes().Where(x => x.NodeTypeAlias == "ScienceResearchUpdatesPost").OrderByDescending(x => x.CreateDate), Request.QueryString["archive"]);

    int skipThisMany = currentPage*itemsPerPage;
    int loadThisMany = itemsPerPage;     

    @PostListings2(nodesList.Skip(skipThisMany).Take(loadThisMany), postDateProperty );
  }
  @* Alternate DATES *@ 
  else if(!String.IsNullOrEmpty(Request.QueryString["altArchive"])){
    nodesList = GetNodesByAltMonth(uQuery.GetRootNode().GetDescendantNodes().Where(x => x.NodeTypeAlias == "ScienceResearchUpdatesPost" && x.HasProperty(postDateProperty )).OrderByDescending(x => x.GetPropertyAsDateTime(postDateProperty )), Request.QueryString["altArchive"], postDateProperty );                                                                    

    var dateOfSearch = Convert.ToDateTime(@Request.QueryString["altArchive"]);
    <h3>@nodesList.Count() article(s) for @dateOfSearch.ToString("MMMM yyyy")</h3>
    int skipThisMany = currentPage*itemsPerPage;
    int loadThisMany = itemsPerPage;     

    @PostListings2(nodesList.Skip(skipThisMany).Take(loadThisMany), postDateProperty );
  }
   @*Tags*@
  else if(!String.IsNullOrEmpty(Request.QueryString["tag"])){
    nodesList = @DWTBlog.ListOfPosts.GetNodesByTag(uQuery.GetRootNode().GetDescendantNodes().Where(x => x.NodeTypeAlias == "ScienceResearchUpdatesPost").OrderByDescending(x => x.GetPropertyAsDateTime(postDateProperty )), Request.QueryString["tag"]);
    <h3>Articles tagged @Request.QueryString["tag"]: @nodesList.Count()</h3>
    int skipThisMany = currentPage*itemsPerPage;
    int loadThisMany = itemsPerPage;
    @PostListings2(nodesList.Skip(skipThisMany).Take(loadThisMany), postDateProperty );
  }
  @*NOTHING*@
  else{
     nodesList = uQuery.GetRootNode().GetDescendantNodes().Where(x => x.NodeTypeAlias == "ScienceResearchUpdatesPost").OrderByDescending(x => x.GetPropertyAsDateTime(postDateProperty));
     <h3>Number of Articles: @nodesList.Count()</h3>
     @* @PostListings(@Model.NodeById(1089).Descendants("ScienceResearchUpdatesPost").OrderBy("CreateDate desc").Skip(currentPage*itemsPerPage).Take(itemsPerPage));  *@

     int skipThisMany = currentPage*itemsPerPage;
     int loadThisMany = itemsPerPage;

     @PostListings2(nodesList.Skip(skipThisMany).Take(loadThisMany), postDateProperty);
  }

  @*DMNS - ELSE IF HERE?  Would this need to be per section?*@

  var numberOfItems = nodesList.Count();
  var numberOfPages = numberOfItems % itemsPerPage == 0 ? Math.Ceiling((decimal)(numberOfItems / itemsPerPage)) : Math.Ceiling((decimal)(numberOfItems / itemsPerPage))+1; 

        // pagination
        if (nodesList != null)
        {
          @PaginationHelper(nodesList, itemsPerPage)
        }
}

@*Helper method for redirection*@

@helper PostListings2(IEnumerable<umbraco.presentation.nodeFactory.Node> list, string propertyName)
{ 
 var baseNode = @Model.AncestorOrSelf("DWTBlogLanding");
 <ul class="dwtPostList">
 @foreach(var nodeItem in list){
  var postDateString = "";
  var postedByString = "";

  <li>
    <h3>
       <a href="http://www.dmns.org@(baseNode.Url)Post/?nid=@(nodeItem.Id)">@nodeItem.Name</a>
    </h3>


  @if (nodeItem.GetProperty("alternateAuthor") == null){
    @* <div class="dwtPosted">Posted @nodeItem.CreateDate by @nodeItem.CreatorName</div> *@
  } else if (nodeItem.HasProperty(propertyName)) {
     @* var postedDate = @nodeItem.GetPropertyAsDateTime(propertyName);
    <div class="dwtPosted">Posted @postedDate.ToString("MM/dd/yyyy") by <a href="@baseNode.Url?altAuthor=@(@umbraco.BusinessLogic.User.GetUser(@nodeItem.GetPropertyAsInt("alternateAuthor")).Name)">@umbraco.BusinessLogic.User.GetUser(@nodeItem.GetPropertyAsInt("alternateAuthor")).Name</a> | <a href="http://www.dmns.org@(baseNode.Url)/Post/[email protected]#disqus_thread">Comments</a></div>
     *@
  } else {
    @*
    <div class="dwtPosted">Posted @postedDate.ToString("MM/dd/yyyy") by <a href="@baseNode.Url?altAuthor=@(@umbraco.BusinessLogic.User.GetUser(@nodeItem.GetPropertyAsInt("alternateAuthor")).Name)">@umbraco.BusinessLogic.User.GetUser(@nodeItem.GetPropertyAsInt("alternateAuthor")).Name</a> | <a href="http://www.dmns.org@(baseNode.Url)/Post/[email protected]#disqus_thread">Comments</a></div>
    *@
  }

  <div class="dwtPosted">Posted by </div>

@if(!String.IsNullOrWhiteSpace(@nodeItem.GetProperty("landingPageImage").Value)){
       var postImage = Library.MediaById(@nodeItem.GetProperty("landingPageImage").Value);
        <div id="mediaHolder"><img src="@postImage.Url" style="padding-top:25px; display:block; width:560px; height:336px;"/></div>
      }
     @Library.Truncate(Library.StripHtml(@nodeItem.GetProperty("bodyText").Value, "img", "a", "object", "param", "table", "embed", "iframe", "strong", "b", "p"),300)
     <div class="dwtBtnHolder">
       <a href="http://www.dmns.org/@(baseNode.Url)Post/?nid=@(nodeItem.Id)" class="buyNowBtn">Read More</a>
     </div>

    @if(@nodeItem.HasProperty("dwtBlogCategories")){                                       
       <div class="dwtBlogCatTagContainer">
       <div class="dwtPostListCategories">
       <span> Categories: </span> 
      <ul class="dwtPostListCategoriesList">   

      @{var categories = @nodeItem.GetProperty("dwtBlogCategories").Value.Split(",".ToCharArray());}
        @foreach(var c in categories){
          <li><a href="@baseNode.Url?category=@c">@c</a></li>                      
         }
         </div>
      <div class="dwtPostListTags">

       <span> Tags: </span> 
      <ul class="dwtPostListTagsList">                                   
      @{var tags = @nodeItem.GetProperty("tags").Value.Split(",".ToCharArray());}
        @foreach(var t in tags){
          <li><a href="@baseNode.Url?tag=@t">@t</a></li>                      
         }
      </ul>
      </div>                                
        </div> 
      }         
  </li>
 }
 </ul>
} 

@helper PostListings(DynamicNodeList list)
{ 
 var baseNode = @Model.AncestorOrSelf("DWTBlogLanding");
 <ul class="dwtPostList">
 @foreach(DynamicNode nodeItem in @list){
  <li>

    <h3>
       <a href="http://www.dmns.org/@(baseNode.Url)Post/?nid=@(nodeItem.Id)">@nodeItem.Name</a>
    </h3>
  <div class="dwtPosted">Posted @nodeItem.CreateDate by @nodeItem.CreatorName</div>
   @Library.Truncate(Library.StripHtml(@nodeItem.GetProperty("bodyText").Value, "img", "a", "object", "param", "table", "embed", "iframe", "strong", "b", "p"),300)
     <div class="dwtBtnHolder">
       <a href="http://www.dmns.org/@(baseNode.Url)Post/?nid=@(nodeItem.Id)" class="buyNowBtn">Read More</a>
     </div>

    @if(@nodeItem.HasValue("dwtBlogCategories")){                                       
       <div class="dwtBlogCatTagContainer">
       <div class="dwtPostListCategories">
       <span> Categories: </span> 
      <ul class="dwtPostListCategoriesList">   

      @{var categories = @nodeItem.GetProperty("dwtBlogCategories").Value.Split(",".ToCharArray());}
        @foreach(var c in categories){
          <li><a href="@baseNode.Url?category=@c">@c</a></li>                      
         }
         </div>                       
        </div> 
      }         
  </li>
 }
 </ul>
} 

@helper CategoryList(){

 }

@*WILL GET TO THIS LATER*@

@helper PaginationHelper(IEnumerable<umbraco.presentation.nodeFactory.Node> nodes, int itemsPerPage){
  var pagesToList = nodes;
  var previousLabel = String.IsNullOrEmpty(Parameter.PreviousLabel) ? "Previous" : Parameter.PreviousLabel;
  var nextLabel = String.IsNullOrEmpty(Parameter.NextLabel) ? "Next" : Parameter.NextLabel;

  // paging calculations
  var numberOfItems = pagesToList.Count();
  <h3>numberOfItems: @numberOfItems</h3>
  int currentPage = 1;
  if (!int.TryParse(HttpContext.Current.Request.QueryString["Page"], out currentPage)) {
    currentPage = 1;
  }
  @*DMNS - ELSE IF HERE?  Would this need to be per section?*@
  currentPage--;
  var numberOfPages = numberOfItems % itemsPerPage == 0 ? Math.Floor((decimal)(numberOfItems / itemsPerPage)) : Math.Floor((decimal)(numberOfItems / itemsPerPage)) + 1;       
  <h3>numberOfPages: @numberOfPages</h3>                                                                                                     
<div class="pagingPages">
    @{
    // Google style paging links

    var previousQueryString = "";

    if(!String.IsNullOrEmpty(Request.QueryString["author"]))
    {
       previousQueryString = "?author=" + Request.QueryString["author"];
    } 
    else if(!String.IsNullOrEmpty(Request.QueryString["altAuthor"]))
    {
       previousQueryString = "?altAuthor=" + Request.QueryString["altAuthor"];
    }
    else if(!String.IsNullOrEmpty(Request.QueryString["category"]))
    {
       previousQueryString = "?category=" + Request.QueryString["category"];
    }
    else if(!String.IsNullOrEmpty(Request.QueryString["archive"]))
    {
       previousQueryString = "?archive=" + Request.QueryString["archive"];
    }
    else if(!String.IsNullOrEmpty(Request.QueryString["altArchive"]))
    {
       previousQueryString = "?altArchive=" + Request.QueryString["altArchive"];
    }
    else if(!String.IsNullOrEmpty(Request.QueryString["tag"]))
    {
       previousQueryString = "?tag=" + Request.QueryString["tag"];
    }  
    var pageString = "?page=";
    if (!String.IsNullOrEmpty(previousQueryString))  
    {
       pageString = "&page=";
    } 
    if(currentPage > 0) {
      <a href="@(previousQueryString)@(pageString)@(currentPage)">&laquo; @previousLabel</a>
    } else {
      <span class="pagingDisabled">&laquo; @previousLabel</span>
    }

    var Pages = Enumerable.Range(1, (int)numberOfPages);
    foreach(var number in Pages) {
      if(number-1 != currentPage) {
        <a href="@(previousQueryString)@(pageString)@number">@number</a>
      } else {
        <span class="dwtPagingCurrent">@number</span>
      }
    }
    if(currentPage < Pages.Count()-1) {
      <a href="@(previousQueryString)@(pageString)@(currentPage+2)">@nextLabel &raquo;</a>
    }else {
      <span class="pagingDisabled">@nextLabel &raquo;</span>
    }
  }
  </div>
}
@functions{
  public static IEnumerable<umbraco.presentation.nodeFactory.Node> GetNodesByAltMonth(IEnumerable<umbraco.presentation.nodeFactory.Node> nodes, string archiveDate, string propertyName)
  {
      var date = Convert.ToDateTime(archiveDate);
      var nodeList = new List<umbraco.presentation.nodeFactory.Node>();

      foreach (var node in nodes)
      {
          var nodeDate = node.GetPropertyAsDateTime(propertyName);

          if (nodeDate.Month == date.Month && nodeDate.Year == date.Year)
          {
              nodeList.Add(node);
          }
      }
      return nodeList;
  }  
}

Hi Carlos,

I think part of the issue might be that you're referencing the "old" NodeFactory namespace in some areas.  Try changing any references to

umbraco.presentation.nodeFactory.Node

to just this:

Node

Then add this using statement using the newer NodeFactory namespace (the old version was umbraco.presentation.nodeFactory)

@using umbraco.NodeFactory

Hope this helps,
Tom 

@Tom

It seems like some of the definitions, for me anyways, don't want to work. 
I did as you suggested (thanks for that catch. I was unaware of the changes). Now I am getting different error on mulitple ways of getting properties.

It seems like the 'GetPropertyAsDateTime' and 'GetPropertyAsString' and possibly others are causing erros because umbraco.NodeFactory doesn't contain those definitions.

Did something change with the uQuery stuff?  Now I am getting

Error occured

d:\WebSites\dmns.org\macroScripts\634865824691844624_DWTListOfPosts.cshtml(298): error CS1061: 'umbraco.NodeFactory.Node' does not contain a definition for 'GetPropertyAsDateTime' and no extension method 'GetPropertyAsDateTime' accepting a first argument of type 'umbraco.NodeFactory.Node' could be found (are you missing a using directive or an assembly reference?)

And in another Controls

Error occured

d:\WebSites\dmns.org\macroScripts\634865827448737268_CrossPromotionUQuery.cshtml(18): error CS1061: 'umbraco.NodeFactory.Node' does not contain a definition for 'GetPropertyAsString' and no extension method 'GetPropertyAsString' accepting a first argument of type 'umbraco.NodeFactory.Node' could be found (are you missing a using directive or an assembly reference?)

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