private void checkDataGridView_DefaultValuesNeeded(object sender, System.Windows.Forms.DataGridViewRowEventArgs e)
   {         e.Row.Cells["dataGridViewTextBoxColumn3"].Value = "su194";
         e.Row.Cells["determinart"].Value = "AC";
   
   }
如上代码为数据表check两列设定了默认值,可在新增行时却一定没有反应。请高看指教?