Exception:NullReferenceException: Object reference not set to an instance of an object
System.Windows.Forms.MdiClient.ActivateChild (System.Windows.Forms.Form form)
(wrapper remoting-invoke-with-check) System.Windows.Forms.MdiClient:ActivateChild (System.Windows.Forms.Form)
System.Windows.Forms.MdiWindowManager.FormVisibleChangedHandler (System.Object sender, System.EventArgs e)
System.Windows.Forms.Control.OnVisibleChanged (System.EventArgs e)
System.Windows.Forms.ScrollableControl.OnVisibleChanged (System.EventArgs e)
System.Windows.Forms.Form.OnVisibleChanged (System.EventArgs e)
System.Windows.Forms.Control.SetVisibleCore (Boolean value)
System.Windows.Forms.Form.SetVisibleCore (Boolean value)
System.Windows.Forms.Control.set_Visible (Boolean value)
System.Windows.Forms.Control.Show ()
(wrapper remoting-invoke-with-check) System.Windows.Forms.Control:Show ()
DG.FrameworkForm.ShowAndSizeForm (System.Windows.Forms.Form form)
Menu_Title.LoadControlPanels ()
Menu_Title.Awake ()