Problem in expanding parent node of Treeview

[Arunshyam]

Hi,

Help me to solve this problem.

I have a treeview in that I'am binding the nodes based on demand. When page load, i will load level1 treenodes and when expanding the level1 treenode im loading the level2 nodes using treenode value. And in another case I will bind the treeview when user enters a text from textbox.  Here I want to expand all the parent node of the user entered text. In my code its expanding the node what user entered from textbox and its child nodes. But its not expanding the parent node of what user entered from textbox.

I need treeview like as attached image.

My Control:

<

telerik:RadTreeView ID="RadTreeViewCodeTypes" runat="server" OnNodeExpand="RadTree_OnNodeExpand"

 

Skin="HCPro" EnableEmbeddedSkins="false" Width="245px" OnNodeClick="RadTree_OnNodeClick"

Style="white-space: normal" SingleExpandPath="true" >

 

<DataBindings>

 

<telerik:RadTreeNodeBinding Expanded="false" ExpandMode="ServerSide"/>

 

</DataBindings>

 

</telerik:RadTreeView>
Code behind:

RadTreeViewCodeTypes.DataFieldID = "ID";

RadTreeViewCodeTypes.DataFieldParentID = "ParentCode";
RadTreeViewCodeTypes.DataTextField = "TextCode";

RadTreeViewCodeTypes.DataValueField = "ID";

 RadTreeViewCodeTypes.DataSource = TreeviewList;

RadTreeViewCodeTypes.DataBind();

after this binding

foreach (RadTreeNode node in RadTreeViewCodeTypes.GetAllNodes())

{

 if (node.Value == Session["SearchCode"].ToString())

 { 

if (!node.Expanded)  

{
node.ParentNode.ExpandChildNodes();

node.Selected = true;  

RadTreeNode Node = new RadTreeNode(); 

Node = node.ParentNode;
while (Node.ParentNode != null)

{

 

Node.Expanded = true;

Node = Node.ParentNode;

}

node.Selected = true;

}

}

}

Thanks,
Arunshyam. S

[Plamen]

Hi Arunshyam,

If I understand you right you are trying to expand all the parent nodes of the node whose name is typed in the textbox. You can try this code:

RadTreeNode parent = node.ParentNode;

while (parent != null) {

    parent.Expanded = true;

    parent = parent.ParentNode;

}

Hope this will be helpful.

Best wishes,
Plamen Zdravkov
the Telerik team