private void DataGrid_ToolstripAddNewItem_Click(object sender, EventArgs e)
        {
            FormWithFields formWithFields = new FormWithFields(table_name, dataGridView, FormWithFieldsOptions.add);

            formWithFields.Show();
        }
        //
        // Events
        //
        private void editButton_Click(object sender, EventArgs e)
        {
            FormWithFields formWithFields = new FormWithFields(table_name, dataGridView, FormWithFieldsOptions.edit);

            formWithFields.Show();
        }