/// <summary>/// 方法实现把dgv里的数据完整的复制到一张内存表/// </summary>/// <param name="dgv">dgv控件作为参数 </param>/// <returns>返回临时内存表 </returns>public static DataTable GetDgvToTable(DataGridView dgv){DataTable dt = new DataTable();for (int count = 0; count < dgv.Columns.Count; count++){DataColumn dc = new DataColumn(dgv.Columns[count].Name.ToString());dt.Columns.Add(dc);}for (int count = 0; count < dgv.Rows.Count; count++){DataRow dr = dt.NewRow();for (int countsub = 0; countsub < dgv.Columns.Count; countsub++){dr[countsub] = dgv.Rows[count].Cells[countsub].Value.ToString();}dt.Rows.Add(dr);}return dt;}