That would be by including it in a Where statement:

@Model.AncestorOrSelf.Where("NodeTypeAlias == @0", "yourDocumentTypeAlias")

Hm, not getting the result I'm hoping for. I tried to replace a bit of code out of a razor-snippet. I was hoping the two would have the same result, but it appears as the second one renders zero children

var level = String.IsNullOrEmpty(Parameter.Level) ? 1 : int.Parse(Parameter.Level); 
  var ulClass = String.IsNullOrEmpty(Parameter.UlClass) ? "" : String.Format(" class=\"{0}\"", Parameter.UlClass); 
  //var parent = @Model.AncestorOrSelf(level);
  var parent = @Model.AncestorOrSelf.Where("NodeTypeAlias == @0", "Start");
  
  if (parent != null) {
    <ul@Html.Raw(ulClass)>
    @foreach (var item in parent.Children.Where("Visible")) {
      var selected = Array.IndexOf(Model.Path.Split(','), item.Id.ToString()) >= 0 ? " class=\"selected\"" : "";
      <li@Html.Raw(selected)>
        <a href="@item.Url">@item.Name</a>
      </li>
      }
    </ul>
  }

Hm, still the same result.  

Using var parent = @Model.AncestorOrSelf(level); results in  @parent.Children.Count() == 11

while

var parent = @Model.AncestorOrSelf("Start").Last()results in  @parent.Children.Count() == 0;

Notice the extra "s" in ancestorsOrSelf... it's a collection.. ;)

Brilliant. Thanks!

Where are these APIs documented?

I have paid for umbraco.tv, but i cannot find anything on the site that lets me work these things out for myself.

Hi Baldy.

Did you looking for documentation for Razor in Umbraco. If so I think these links will be good:

http://umbraco.tv/videos/implementor/working-with-umbraco-data/razor-syntax/introduction-to-razor/

http://umbraco.tv/videos/implementor/working-with-umbraco-data/querying-umbraco-data-with-razor/

http://our.umbraco.org/documentation/Reference/Templating/Macros/Razor/basic-razor-syntax

http://our.umbraco.org/documentation/reference/templating/macros/razor/using-razor-axes

http://our.umbraco.org/documentation/reference/templating/Masterpages/

For working with MVC look here:

http://our.umbraco.org/documentation/reference/templating/Mvc/

I hope this is what you´re looking for.

/Dennis

Dennis, many thanks.

The last one is particularly useful as a point of reference for MVC.

I resorted to using the Object Browser to figure out what @CurrentPage had to offer (an instance of DynamicPublishedContent).

I also came across these cheat sheets, which were a huge help...

http://our.umbraco.org/projects/developer-tools/umbraco-v6-mvc-razor-cheatsheets

Running visual studio on the umbraco source alongside any kind of umbraco development and using the Object Browser as you did is really the only way to be effective in my opinion. So many nuances which are just easier to look at the source than digging or searching around the net. The cheat sheet also is a great reference for getting started (I have mine printed out and always within reach myself) but not totally comprehensive, not quite like the Object Browser is at least. Best of luck to you!

Hi David,

The other closest way of getting something like Model.AncestorOrSelf(level) would be

List<DynamicNode> content = @Model.AncestorOrSelf(2).Descendants("DocumentType").Items;

then something like

if(content.Count() > 0 ){
 foreach(var s in content){
  @s.Name or @s.Url
 }
}

is working on a reply...