MDI Child Problems in VB.net 2008

Question

I have a MSI based application with two problems. 
First:  when i close the MDI child i want to ask if the user would like to save the data in the child and give them the regular choice yes,no,cancel however when i try to use the Formclosing event it never fires, it does fire for the mdi parent but that is no help.

Second: When i load the child i am using a template form to get all the controls and code, but if i close all the children then reopen one it errors because the controls are disposed.

Can anyone help solve these problems?  I am including some of the code i am having errors with!


The code to create the new child forms:

Private m_ChildFormNumber As Integer
    Dim new_controls(Child_Form_template.Controls.Count) As Control
    Private Sub ShowNewForm(ByVal sender As Object, ByVal e As EventArgs) Handles NewToolStripMenuItem.Click, NewToolStripButton.Click, NewWindowToolStripMenuItem.Click
        ' Create a new instance of the child form.
        Dim ChildForm As New System.Windows.Forms.Form
        ' set the layout of the child form.
        ChildForm.Controls.AddRange(new_controls)
        ChildForm.CausesValidation = True
        ' Make it a child of this MDI form before showing it.
        ChildForm.MdiParent = Me
        m_ChildFormNumber += 1
        ChildForm.Text = "Question " & m_ChildFormNumber
        ChildForm.Show()
    End Sub
    Private Sub Main_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Child_Form_template.Controls.CopyTo(new_controls, 0)

    End Sub

The code for the formclosing event:

Private Sub Child_Form_template_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
        If saved_status = 0 Then
            Dim save_now As MsgBoxResult = MsgBox("Question not saved, Would you like to save now?", MsgBoxStyle.YesNoCancel, "Save Question?") = MsgBoxResult.Yes
            If save_now = MsgBoxResult.Yes Then
                Save_Question()
            ElseIf save_now = MsgBoxResult.Cancel Then
                e.Cancel = True
            End If
        End If
    End Sub