System.NullReferenceException: Riferimento a un oggetto non impostato su un'istanza di oggetto.
in SMath.Control.MathRegion.UpdateLayout()
in SMath.Control.RegionControl.UpdateLayout()
in SMath.Viewer.Viewer.TranslateLayout()
in SMath.Viewer.Viewer.languageItem_Click(Object sender, EventArgs e)
in System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
in System.Windows.Forms.ToolStripMenuItem.OnClick(EventArgs e)
in System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
in System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
in System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
in System.Windows.Forms.ToolStripDropDown.OnMouseUp(MouseEventArgs mea)
in System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
in System.Windows.Forms.Control.WndProc(Message& m)
in System.Windows.Forms.ToolStrip.WndProc(Message& m)
in System.Windows.Forms.ToolStripDropDown.WndProc(Message& m)
in System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
in System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)