public static ShowGenerateTablesWindowSingleton Instanciate(Action <object, ImportTablesEventArgs> callback)
        {
            if (_showGenerateTablesWindowSingleton == null)
            {
                _showGenerateTablesWindowSingleton = new ShowGenerateTablesWindowSingleton(callback);
            }

            return(_showGenerateTablesWindowSingleton);
        }
        public static ShowGenerateTablesWindowSingleton Instanciate(Action<object, ImportTablesEventArgs> callback)
        {
            if (_showGenerateTablesWindowSingleton == null)
            {
                _showGenerateTablesWindowSingleton = new ShowGenerateTablesWindowSingleton(callback);
            }

            return _showGenerateTablesWindowSingleton;
        }