Treeview Nodes - changing Node Names

[txgeekgirl]

Anybody here work with Nodes is a TreeView?

I have a tree structure and need to enable editing to the selected Node. I have a String Variable where the enduser can Type in a new Folder name, click ok and the structure gets made. But I need the Node Name to follow suit.

The only way I know how to enable editing is:

 ' Allow editing of the labels
                    TemplateTreeview.LabelEdit = True

and re-walk to make the template.

BUT - I have patient folders that need to be updated at the same time.

Needs to work with this code using GoodFolderName as new Node Name:

 Sub ChangeFolderName(ByVal BadLevel As String, ByVal GoodFolderName As String)
        'BadLevel is the entire path of the folder with the end being what will get adjusted...EU putsd in data after Prog
        ''''' i.e. PDF_Archives$\MedicalRecords\#####\MH Adult\MH Adult\SECTION 1 - IDENTIFYING INFORMATION AND CONSENTS\CR251 Diagnostic Form
        ''''' This is the folder that gets a new name - CR251 Diagnostic Form
        Dim CheckThis As String
        Dim info As New System.IO.DirectoryInfo(myRootpath)
        Dim subDir As DirectoryInfo
        Dim BadFolderName As String
        Dim ProgCheck As String
        Dim Flag As Integer = 0

        'Nod = TemplateTreeView.SelectedNode
        'NewNod = New TreeNode(GoodFolderName)

        ' Allow editing of the labels
        TemplateTreeView.LabelEdit = True

        MessageBox.Show("Make your changes and click OK")

        'Check to make sure folder exists in all instances (Chart Orders for program)
        'Delete pre-existing file
        If File.Exists("Outbox\2818\EMR_ChangeCheck.txt") Then
            File.Delete("Outbox\2818\EMR_ChangeCheck.txt")
        End If

        Using sw As StreamWriter = New StreamWriter("Outbox\2818\EMR_ChangeCheck.txt", True)
            For Each subDir In info.GetDirectories
                PatientCB = subDir.ToString

                'Program to check - WE ONLY CARE ABOUT CHANGING Structure if our Client is suppose to have that existing Chart order
                ProgCheck = myRootpath + PatientCB + SecLevel + Prog                'file path to check
                CheckThis = myRootpath + PatientCB + SecLevel + Prog + "\" + BadLevel

                If Directory.Exists(ProgCheck) Then
                    ' set position to grab last folder name
                    'MessageBox.Show(CheckThis)
                    If Not Directory.Exists(CheckThis) Then
                        'Make file path new directory
                        'MessageBox.Show("1")
                        sw.WriteLine(PatientCB + " - Client doesn't have good Chart Order")
                    End If
                End If
            Next
            'close SW
            sw.Close()

            'Grab file info of Errorlog... 0 means no data....2 in minimum empty file 
            Dim a As IO.FileInfo = New IO.FileInfo("Outbox\2818\EMR_ChangeCheck.txt")
            'MessageBox.Show(a.Length)
            If a.Length > 2 Then
                Flag = 0
                MessageBox.Show("You must correct the following before Folders in this structure can be deleted.  The Chart Order must be checked before proceeding.")
                'Open notepad
                System.Diagnostics.Process.Start("notepad.exe", "Outbox\2818\EMR_ChangeCheck.txt")
                Exit Sub
            Else
                Flag = 1

            End If

        End Using
        Flag = 1
        BadFolderName = BadLevel
        If Flag = 1 Then
            Dim Ans As Integer
            Ans = MessageBox.Show("Do you want to change " + BadFolderName + " to " + GoodFolderName + " in your Chart Order?", "Delete Confirmation", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation)
            'If yes then delete folderIf Flag = 1 Then
            If Ans = vbYes Then
                'Loop through the patients

                For Each subDir In info.GetDirectories
                    PatientCB = subDir.ToString
                    'reset checkthis just to get rid of error
                    CheckThis = myRootpath + PatientCB + SecLevel + Prog + "\" + BadLevel

                    If Directory.Exists(CheckThis) Then
                        'MsgBox(CheckThis)
                        FileIO.FileSystem.RenameDirectory(CheckThis, GoodFolderName)
                    End If
                Next
                MessageBox.Show("All Folders in the Chart Order for " + Prog + " have been changed from " + BadFolderName + " to " + GoodFolderName + ".")
            Else
                MessageBox.Show("You clicked no. The Folder - " + BadFolderName + " has NOT been renamed " + GoodFolderName + ".")
                Exit Sub
            End If
        End If


    End Sub

[enrico1982]

I think the Node Edition section of this article should help:
http://www.functionx.com/vbnet/controls/treeview.htm

Have not done it myself but it looks like there is a TreeNode.BeginEdit() which sounds like it does what you want.

HTH

[txgeekgirl]

Thanks - saw that article. Wasn't a match for the issue. Editting a made node outside the treeview is a lot different than opening the treeview to accept an edit.

[enrico1982]

I don't understand what you mean by:

Editting a made node outside the treeview is a lot different than opening the treeview to accept an edit.

What does each mean, and which do you need to do

[txgeekgirl]

You can open a tree to accept an edit where you type your edit into the tree directly and re-read the tree - write to your list.

That is the easy way.

Have a tree open and wanting that tree node to accept a new name based on a variable is the example I cannot find. That is indirectly editting the node.

[enrico1982]

Unless I still don't quite understand, editing a node is simply TreeNode.Text = Variable

But I assume you also need to find the right node to edit is that the case?

If so this depends on what information you have. If the user has selected the node then: TreeView.SelectedNode

if not and you just have the nodes name or id or something, then you can either loop through all available nodes or use TreeView.Nodes.Find()

HTH

[txgeekgirl]

Thank you Rico - I was actually able to set it to selectednode.text = variable - I had to put a little string in the call above the function to retain a value.