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Attributes and WCF Web Service Load On Demand

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This is a migrated thread and some comments may be shown as answers.

Tim asked on 09 Aug 2011, 11:58 PM

On the server side, I've built a RadTreeView whose nodes have attributes.

RadTreeView tree = new RadTreeview();

tree.ID = "MyRadTree";

tree.WebServiceSettings.Path = "MyServices.svc";

tree.WebServiceSettings.Method = "GetNodes"

...

RadTreeNode nodes = new RadTreeNode();

...

RadTreeNode expandNode1 = new RadTreeNode();

expandNode1.Text = "Apples";

expandNode1.Value = "1";

expandNode1.Attributes.Add("NodeType", "Fruit");

expandNode1.ExpandNode = TreeNodeExpandNode.WebService;

...

tree.Nodes.AddRange(nodes);

My service, GetNodes(), is called, but the node.Attributes count is 0.

[OperationContract]

public RadTreeNodeData[] GetNodes(RadTreeNodeData node, IDictionary<string, object> context)

{

string value = node.Value; // ok

string text = node.Text; // ok

int attributeCount = node.Attributes.Count; // 0

string attribute = node.Attributes["NodeType"]; // Exception "The given key was not present in the dictionary"

}

Is this supposed to work? Any ideas what I could be missing? Might I need to add a [WebInvoke ...] attribute to my web method, perhaps changing the method style?

(Note that the attribute(s) are available from the client side; they just don't seem to make it through to the web service.)

Thanks.

Attributes and WCF Web Service Load On Demand

2 Answers, 1 is accepted