Adding a node to a treeview on a different form...

[Azkar]

Okay, i have 2 forms. Im looking to create a seperate form that a user can enter the name of the node as. I have this

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        user = TextBox1.Text
        Dim newnode As TreeNode = New TreeNode(user)
        forms.myform1.TreeView1.SelectedNode.Nodes.Add("test")
        forms.myform2.Hide()
    End Sub

the show/hide form2 works, but i get this for the treeview:
Additional information: Object reference not set to an instance of an object.