traversing nodes in c

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Zakhar 171 posts 397 karma points

Jul 02, 2012 @ 18:29

0

Traversing nodes in C#

Hi guys, sorry if such question was already answered here, I can't find the solution.

I need to get parent's children of particular document type. In razor (4.7.2) I can do it like this:

@Model.Parent.Descendants("MyDocType")

I know I can use uQuery to get all nodes of type:

List<Node> allNodes = uQuery.GetNodesByType("MyDocType");

That will return all nodes, but I need only parent's children. How can I do it?

Thanks.

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Jeroen Breuer 4861 posts 12138 karma points MVP 3x admin c-trib

Jul 03, 2012 @ 12:38
0
You can also use that Razor example in C#, but you first need to get the model:
```
dynamic model = new umbraco.MacroEngines.DynamicNode(umbraco.NodeFactory.Node.GetCurrent());
var node = model.Parent.Descendants("MyDocType")
```
Jeroen
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Hendy Racher 861 posts 3844 karma points MVP 2x admin c-trib

Jul 03, 2012 @ 13:02
0
Hi Zakhar,

or how about:
```
Node parent = uQuery.GetCurrentNode().Parent;
List<Node> nodes = parent.GetChildNodesByType("MyDocType");
```
Hendy
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Zakhar 171 posts 397 karma points

Jul 05, 2012 @ 16:12
0
Hi guys, sorry I didn't reply straight away, was very busy with another project. Thanks for you answers but unfortunately I can't make to work neither of them.

When I try

using umbraco.presentation.nodeFactory;
...
Node parent = uQuery.GetCurrentNode().Parent;
List nodes = parent.GetChildNodesByType("MyDocType");

It can't build it, I get this error:

'umbraco.presentation.nodeFactory.Node' does not contain a definition for 'GetChildNodesByType' and no extension method 'GetChildNodesByType' accepting a first argument of type 'umbraco.presentation.nodeFactory.Node' could be found (are you missing a using directive or an assembly reference?)
```
dynamic model =new umbraco.MacroEngines.DynamicNode(umbraco.NodeFactory.Node.GetCurrent());
var node = model.Parent.Descendants("MyDocType")
```
doesn't build as well. I get:

The type or namespace name 'DynamicNode' does not exist in the namespace 'umbraco.MacroEngines' (are you missing an assembly reference?)
Also it doesn't like model.Parent part :
One or more types required to compile a dynamic expression cannot be found. Are you missing references to Microsoft.CSharp.dll and System.Core.dll?

Which dlls do I need to reference? I added umbraco, cms, interfaces, businesslogic to my projects.

Thanks,

Zakhar
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Hendy Racher 861 posts 3844 karma points MVP 2x admin c-trib

Jul 05, 2012 @ 16:51
0
Hi Zakhar,

Sorry, for the uQuery example above, you'll need:
```
using uComponents.Core;
using uComponents.Core.uQueryExtensions; // (this namespace has the extension method GetChildNodesByType)
```
HTH,

Hendy
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Ernst Utvik 123 posts 235 karma points

Jul 06, 2012 @ 02:23
0
```
Node current = new Node(Node.GetCurrent().Id);
Node parent = new Node(current.Parent.Id);
Nodes siblings = parent.Children;
foreach (Node node in siblings){
if (node.NodeTypeAlias == "somedoctype")
{ do stuff }}
```
Not at all tested, but I have done something similar in the past to populate a dropdown ;) uQuery is probably a bit more tidy.
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Jeroen Breuer 4861 posts 12138 karma points MVP 3x admin c-trib

Jul 10, 2012 @ 10:13

0

Hi Zakhar,

For DynamicNode you need to add a reference to the umbraco.MacroEngines.dll file.

Jeroen

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Traversing nodes in C#