delete from student where SID='" + ds.Tables[0].Rows[dataGrid1.CurrentCell.RowNumber][1].value.ToString().Trim() +'"//单元格的值是object型的 需要用到value属性取出来。注意以上的那个value...
delete from student where SID='" + ds.Tables[0].Rows[dataGrid1.CurrentCell.RowNumber][1].ToString().Trim() +'", 基本三种语句为:select * from student;delete from student或delete student...