foreach (GridViewRow item in GridView1.Rows)
        {
            CheckBox chkID = (CheckBox)item.FindControl("CheckBox1");//找到GridView1每一行的checkbox控件            if (chkID.Checked == true && item.RowType == DataControlRowType.DataRow)
            {
                DataRow newRow = newdtb.NewRow();
              
                
               
                newRow["st_name"] = item.Cells[1].Text.ToString();
                newRow["ST_Price"] = item.Cells[2].Text.ToString();
                newRow["ST_Sales"] = item.Cells[3].Text.ToString();
                newRow["ST_Type"] = item.Cells[4].Text.ToString();
                newdtb.Rows.Add(newRow);
            }
        }
        GridView2.DataSource = newdtb;
        GridView2.DataBind();
    }
我没用CheckBox就是实现不了!拜托帮忙看看,还是一添加全都过了!而不是单条显示