Send Nodes to WebService...

[Christian]

Hi!

How do i send node to a webservice method?

I would like to send node to a webservice method for further processing. I use the NodeDropping event like this:

function

ServiceTree_NodeDropping(sender, eventArgs)
{
    var destNode = eventArgs.get_destNode();
    if(!destNode.get_allowDrop())
    {
        eventArgs.set_cancel(true);
        return;
    }
   
    // Call to webservice method
    MyService.MyMethod(destNode, eventArgs.get_sourceNodes());
}

What should my webservice mehod signature look like in this example, where i would like to send both a single Node and an array/list of node?

Best Regards,
Christian

[Atanas Korchev]

Hello Christian,

You can create a new object and map treenode properties to it:

var param = {};
param.Text = node.get_text();
param.Value = node.get_value();

WebService.WebMethod(param);

Then you can use an IDictionary for the web service method.

public void WebMethod(IDictionary<string, object> param)
{
     string text = (string)param["Text"];
}

The same goes with the array - pass an array of objects to the web service method. Then use IEnumerable as the type of the web service method argument.

Best wishes,
Albert
the Telerik team

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[Christian]

Thanks!

[Jacky Chau]

Can you provide the code that is used to pass a RadTreeNodeData to the webservice when using load-on-demand for expanding?  The webservice signature is something like:

Public Shared Function GetTreeSubItems(ByVal node As RadTreeNodeData, ByVal context As Object) As RadTreeNodeData()

How do I pass in a RadTreeNodeData from the clientside to the webservice?  Is there a private internal function that turns a clientside RadTreeNode to clientside RadTreeNodeData?