Viewing Forms from a TreeView Control

Well what I understand is that you would show a list of all forms a particular user has access to on a TreeView and when the user clicks on them you would open that form. If this is what you want and you are using VB.NET

Load the TreeView with the Names of All Forms as Nodes eg. Form1,Form2 etc.

Now on AfterSelect event of TreeView call a Function ShowForm and Pass the name of the form i.e. the TExt of the Node

Now in the function use Select Case on the Names to create reference of the particular form and show it....

This the code for creating the form

Remember that when adding the form name, you also have to add the form namespace

dim _node as new node

_node.Tag = "MayNameSpace.Form1"

TreeView1.Nodes.Add(_node)

'------------------
Dim f As Object

f = Activator.CreateInstance(Type.GetType(node.Tag, True))

If you have problems, please let me know it.

Wguerram-

This is works well.  However, my problem is that I want just a single instance of a form open at a given time?  Do you have a suggestion on how to maintain just one instance.

I was anticipating using this block of code, but it dosen't seem to be working as well as I'd have hoped.


' MyChildForm is the one I'm looking for which would be f in our instance
 
    Dim childForm As MyChildForm =  Nothing
    Dim c As Form
 
    For Each c In Me.MdiChildren
           If TypeOf c Is MyChildForm Then
               ' found it
               childForm = CType(c, MyChildForm)
               Exit For
          End If
     Next
 
     If Not childForm Is Nothing Then
          childForm.Show()
          childForm.Focus()
     Else
          childForm = New MyChildForm()
          childForm.MdiParent = Me
          childForm.Show()
          childForm.Focus()  
     End If
 

Check the accepted answer in this thread.

https://www.experts-exchange.com/questions/21098926/How-can-i-contorl-the-menu-in-vb-net.html

Thank you very much.

You're welcome!