Dev统计选中行、如需其他数据源可留言

 Clipboard.Clear();
            Dictionary<string, decimal> dtary = new Dictionary<string, decimal>();
            string Ls = "";
            foreach (int i in gridView1.GetSelectedRows())
            {
                var da = gridView1.GetRow(i);
                //GridView gv = gridView1;
                //if (dr != null)
                foreach (GridColumn j in gridView1.GetSelectedCells(i))
                {
                    decimal num = 0.00m;
                    string columnNum = "";
                    foreach (PropertyInfo pi in da.GetType().GetProperties())
                    {
                        if (pi == null) continue;
                        if (pi.CanWrite == false) continue;
                        if (pi.GetValue(da, null) != null)
                            if (pi.Name == j.FieldName) { try { columnNum = pi.GetValue(da, null).ToString(); } catch { } }
                    }
                    Ls += columnNum + "\t";
                    if (decimal.TryParse(columnNum, out num))
                    {
                        if (dtary.ContainsKey(j.Name))
                            dtary[j.Name] += num;
                        else
                            dtary[j.Name] = num;
                    }
                    //var a = j.Column.Name;
                }
                Ls += "\r";
            }
            Clipboard.SetDataObject(Ls);
            string returnmsg = "所有选中列可以统计的统计情况为：";
            foreach (KeyValuePair<string, decimal> vkp in dtary)
            {
                returnmsg += "\n" + vkp.Key + "列値为:" + vkp.Value.ToString();
            }
            MessageBox.Show(returnmsg);