Hi Simon,

Try: 

@Model.AncestorOrSelf(1).Children.Where("NodeTypeAlias==\"Room\"").FirstOrDefault()

I would prefer to use http://ucomponents.org/umapper/

Also, you can always debug it.

Regards,

mkariti

Hi mkariti

Im not sure on the correct usage of your suggested line

When Ive copied that into studio Im getting an error -

Umbraco.Web.Models.RenderModel' does not contain a definition for 'AncestorOrSelf'

Does anyone know why my original line isnt correct? Im a bit new to Razor and I really thought that would work!

Also just to add if I do the snippet without the .where it does return all the pagesm including the ones I dont want but I guess im half way there?

Are you using razor mvc?  if so you ahould be able to do something like 

@foreach(var room inModel.Content.Children.Where(x=>x.NodeTypeAlias ==  "Room")
{
  Stuff
}

Charlie. :)

Yes its Razor MVC :) And you know what, that looks familiar hmmm

Its moaning about <Umbraco.Core.Models.IPublishedContent,int,bool>' does not take 1 arguments however, any ideas?

FIXED IT WOOO my working line is now:

@foreach (var room in Model.Content.Children.Where(x => x.DocumentTypeAlias == "Room"))
{
  Stuff
}

Changed the NodTypeAlias to DocumentTypeAlias and its happy now :)

Thanks both

yea sorry would be doc type alias :D.  Glad you solved it.  Charlie :)

Though I am using NodeTypeAlias still, I tried a slight tweak on Charlie's solution but it breaks.

This line works

var theKids = @Model.NodeById(@pageId).Children();

but then I have to loop through with something like this, which works, but it's ugly

foreach(var child in @theKids){    
    var docType = DocumentType.GetByAlias(@child.NodeTypeAlias).Text;    
    if(docType == "Event")    
    {    
        // do stuff    
    }    
}

If I could use some variation of Charlie's solution above...something like this

var theKids = @Model.NodeById(@pageId).Children.Where(x => x.NodeTypeAlias.Text == "Event");

Umbraco says

"Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type"

Thanks for any pointers you all may have.

-Roger

Hi Roger, Did you ever find a solution to your error?

Hi Leigh,

It's to do with data type casting, I was using var and not casting the results was the problem if I recall. Today I would write it something like this.

using umbraco.NodeFactory;

List<Node> events = 
     @Model.NodeById(@pageId).Children.Where(x => x.NodeTypeAlias.Text == "Event").ToList();

There is a good post here about using generics to achieve this if that's an option for you. http://stackoverflow.com/questions/21388447/lambda-expression-as-an-argument-to-a-dynamically-dispatched-operation

-Roger

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