Currently all my data is being bound through a custom Hierarchy class, I'm having a bit of trouble expanding the structure to make the node I want visible... well... visible. I attempted to use MyTreeView.Nodes(MyIndex).Expanded = True directly after calling MyTreeView.DataBind() but it keeps telling me the index is out of range... but I'm fairly certain it is not. How would one go about expanding a single node of a TreeView without building it from scratch node by node.
* My Bad, I forgot the Node structure was recursive. So I really needed to be working off MyTreeView.Nodes(0). I worked up a little code to get the results I needed, where "selected" is a string value for the text associated with the node I want to expand to:
Dim Node as RadTreeNode
Node = rtvHierarchy.FindNodeByText(selected)
Node.Selected = True
Node = Node.ParentNode
do while not (Node is Nothing)
Node.Expanded = True
Node = Node.ParentNode
loop
* My Bad, I forgot the Node structure was recursive. So I really needed to be working off MyTreeView.Nodes(0). I worked up a little code to get the results I needed, where "selected" is a string value for the text associated with the node I want to expand to:
Dim Node as RadTreeNode
Node = rtvHierarchy.FindNodeByText(selected)
Node.Selected = True
Node = Node.ParentNode
do while not (Node is Nothing)
Node.Expanded = True
Node = Node.ParentNode
loop
1 Answer, 1 is accepted
0
Hello,
You can use ExpandParentNodes() method of RadTreeNode to expand its parent nodes.
All the best,
Yana
the Telerik team
You can use ExpandParentNodes() method of RadTreeNode to expand its parent nodes.
All the best,
Yana
the Telerik team
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