Selecting a tree’s node in code

I have a two Ultratree controls…the first tree control is on a form that is restricted in height and width.  So I have a popup component that floats over the form and the height and width is much bigger to all the user to see more detail of the data.  The goal is that when I select a node from the popup form is that it is transfered back to the original form.  I have an event that passes back the selectednodes collection.  I was trying to loop through the orignal tree and have not been able to find anything on how I would programically select the original tree with the same selection from the popup tree.

 

Thanks for any help on this

 

Public Sub SetSelectedNode(ByVal selectedNodes As SelectedNodesCollection)

For Each node As UltraWinTree.UltraTreeNode In selectedNodes

If node.Selected Then

For Each treenode As UltraWinTree.UltraTreeNode In ResultsTree.Nodes

If node.FullPath = treenode.FullPath Then ‘NOTE problem with this is some node paths with the same name.

‘ResultsTree.ActiveNode.Selected = True  ‘NOTE Doesn’t work

‘ResultsTree.Nodes.Item(treenode.Key).Selected = True  ‘NOTE not sure this work plus I don’t have the key set and dont know how.

End If

Next

End If

Next

 

End Sub

 

 

 [quote user="rrober07"]'ResultsTree.ActiveNode.Selected = True  'NOTE Doesn't work[/quote]

What exactly is not working? Is the Selected property not return true after you set it? 

My guess is that your code is working fine, but you just don't see the selected nodes in the tree because the tree does not have focus. Try setting HideSelection on the tree to false or activating the tree control so that you can see the selection. 

Thank you for  your response…

It did finally work…I reworked my solution below

    Public Sub SetSelectedNode(ByVal selectedNodes As SelectedNodesCollection)

        For Each node As UltraWinTree.UltraTreeNode In selectedNodes
            If node.Selected Then ResultsTree.Nodes.Item(node.Index).Selected = True
        Next

    End Sub

Richard

I have been testing this and it works fine when the Rootnode is selected. I doesn't work when a child node is selected.  How can I programically select a child node of the Result tree.  Any ideas?

One more question…How do you make the node expand?…I will keep working on this too…

 

Thanks,

Richard

UltraTreeNode exposes an Expanded property and an ExpandAll method. The former expands only that node, where the latter expands it and all descendants.

Yes that works…one last problem I am having is that even though I am causing the ResultsTree to be selected…It isn't causing the tree to act like it was selected by the user as if they phyically clicked on the ResultsTree.  Is there a method that would cause that action to occur?

Thanks for you help!

Richard

Hi Richard,

What, exactly, is the difference? 

It looks like I figure out my problem:  Here is the code I am using:

I am having to call the click event of the ResultsTree in code…

    Private Sub FindChild(ByVal parentNode As Infragistics.Win.UltraWinTree.UltraTreeNode, ByVal childNode As Infragistics.Win.UltraWinTree.UltraTreeNode, ByVal selectedNodes As SelectedNodesCollection, ByVal e As System.EventArgs)
        If parentNode.Parent Is Nothing Then
            For Each node As UltraWinTree.UltraTreeNode In ResultsTree.Nodes(parentNode.Index).Nodes
                If node.Index = childNode.Index Then
                    ResultsTree.Nodes(parentNode.Index).Expanded = True
                    node.Selected = True
                    _isExpandingCollapse = False
                    If _activateOnSelection Then ResultsTree_Click(selectedNodes, e)
                    Exit For
                End If
            Next
        Else
            FindChild(parentNode.ParentNodesCollection.ParentNode, parentNode, selectedNodes, e)
        End If
    End Sub

I am not able to select a particular node. Even after setting node.Selected=true, when I check the node.Selected value , it still remains as false

Hi,

I have a similar issue that I had already a node with the key however trying to add a new node with similar key, not able to find out the existing node with the below info.

GetNodeByKey(prntNode.Key)

always it returns false.please help