大家帮忙啊!
Line 70: OleDbDataAdapter da = new OleDbDataAdapter(sqlstr, comn);
Line 71: DataSet ds = new DataSet();
Line 72: da.Fill(ds,"new");//没有为命令对象设置命令
Line 73: //数据绑定
Line 74: Grid1.DataSource = ds.Tables["new"].DefaultView;
