RadTreeNode custom attributes gets lost

[Fahmi]

I am creating RadTreeNode as follows:

protected RadTreeNode BuildOption(Options option, string questionType)
    {
RadTreeNode nodeOption = new RadTreeNode();

 

       nodeOption.Text = "(" + option.OrderID.ToString() + ") " + option.Name;

       nodeOption.Value = option.OptionsID.ToString();

       nodeOption.Attributes.Add(SurveyTreeNodeAttributes.SurveyTreeNodeType, ((int)EnumsBL.SurveyTreeNodeType.Option).ToString());      

       nodeOption.Attributes.Add(SurveyTreeNodeAttributes.QuestionType, questionType);

       nodeOption.ImageUrl = "~/images/ConstIcons/icon-question-option.png";

       return nodeOption;
}


I am also loading the tree nodes on demand as follows:   
Code Behind:

[WebMethod]
public static RadTreeNodeData[] LoadNodes(RadTreeNodeData node, object context)
{
    EnumsBL.SurveyTreeNodeType nodeType = (EnumsBL.SurveyTreeNodeType)Enum.Parse(typeof(EnumsBL.SurveyTreeNodeType), node.Attributes[SurveyTreeNodeAttributes.SurveyTreeNodeType].ToString());
    TreeNodeBuilder treeNodeBuilder = QuestionnaireTreeBuilderFactory.GetQuestionnaireTreeBuilder(nodeType);
    return treeNodeBuilder.BuildChildNodesData(node.Value);
}

ASCX:

<telerik:RadTreeView ID="radTree"
          Skin="Default"
          BackColor="White"
          BorderStyle="Solid"
          BorderColor="#CCCCCC"
          BorderWidth="1px"
          AllowNodeEditing="true"
          Style="cursor: hand;"
          Height="250px"
          EnableDragAndDrop="false"
          OnNodeClick="NodeClick"
           SingleExpandPath="true"
          runat="server">
         <WebServiceSettings  Path="../../Constructor/AdaptiveAnswerBuilder.aspx" Method="LoadNodes" />
      </telerik:RadTreeView>

I have debugged method "LoadNodes" and checked that RadTreeNodeData object array contains the two attributes added to the node at the top.

However when a node is selected I only get(after debugging) one node custom attributes, not two:

protected void TreeNodeClicked(object sender, RadTreeNodeEventArgs e)
   {
       RadTreeNode selectedNode = e.Node; //only one of the attributes, assigned during node creation, are present
       switch ((EnumsBL.SurveyTreeNodeType)Enum.Parse(typeof(EnumsBL.SurveyTreeNodeType), selectedNode.Attributes[SurveyTreeNodeAttributes.SurveyTreeNodeType]))
       {
           case EnumsBL.SurveyTreeNodeType.Option:
               SetViewstateVariables(selectedNode);
               SetConditionValueHolder(int.Parse(selectedNode.Value));
               EnableSaveButton();
               break;
           default:
                pnlCondEqual.Visible = false;
                DisableSaveButton();
               break;
       }
   }

How do I get the other attribute?

Regards,
--Fahmi

[Dimitar Terziev]

Hi Fahmi,

The approach you have implemented seems right, so in order to troubleshoot this issue please provide us with the data you are binding to these custom attributes so we could test this scenario locally.

Regards,
Dimitar Terziev
the Telerik team

[Alexey]

Hi all,

I have the same problem. The problem is that when I add an one attribute to the node of treeview, after postback count of attributes = 0. But when I add two attributes, then to the server comes one attribute not two.

---
Thanks,
Alexey

[Dimitar Terziev]

Hi Alexey,

I've made a sample page trying to reproduce the experienced problem, but to no avail. You could find it attached and test it locally. The tests have been performed with the latest version of the controls.

Kind regards,
Dimitar Terziev
the Telerik team

[Gabriel]

I have the very same problem.

Please fix!!!!

[Dimitar Terziev]

Hello Gabriel,

In order to help you troubleshoot the experienced problem, please share the implementation that you are using. Additionally you could check the sample provided in my previous post.

Greetings,
Dimitar Terziev
the Telerik team