Csharp 两个DataTable或DataView互换,可以用来加密解密

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/// <summary>   /// 涂聚文 geovindu.blog.163.com   /// www.dusystem.com  www.dupcit.com  /// 2011-05-28 /// </summary>   /// <param name="table"></param>   /// <returns></returns>   static DataTable GetDecTable(DataTable table)   {       if (!object.Equals(table, null))//       {           DataTable tableDec = new DataTable();           tableDec.Columns.Add("序号", typeof(string));           tableDec.Columns.Add("员工编号", typeof(string));           tableDec.Columns.Add("姓名", typeof(string));           tableDec.Columns.Add("身份证号", typeof(string));           tableDec.Columns.Add("入职时间", typeof(DateTime));           foreach (DataRow row in table.Rows) // Loop over the rows.           {               tableDec.Rows.Add(row["序号"].ToString(), row["员工编号"].ToString(),  row["姓名"].ToString(),  row["身份证号"].ToString(), row["入职时间"].ToString());             }           return tableDec;       }       else       {           return null;       }   }   /// <summary>   /// 涂聚文 締友計算機信息技術有限公司,捷為工作室,geovindu.blog.163.com   /// www.dusystem.com  www.dupcit.com  /// 2011-05-28 /// </summary>   /// <param name="view"></param>   /// <returns></returns>   static DataView getDecView(DataView view)   {               if (!object.Equals(view, null))       {                       DataTable tableDec = new DataTable();           tableDec.Columns.Add("序号", typeof(string));           tableDec.Columns.Add("员工编号", typeof(string));           tableDec.Columns.Add("姓名", typeof(string));           tableDec.Columns.Add("身份证号", typeof(string));           tableDec.Columns.Add("入职时间", typeof(DateTime));           DataView dv = new DataView(tableDec);           //DataSet dset = new DataSet();           //dset = hr.HrestDataSet();           dv.AllowNew = true;                       //rowView["ProductName"] = "New Product Name";           //dv.AddNew();           //foreach (DataRow theRow in thisDataSet.Tables["Employee"].Rows)           //{           //    Console.WriteLine(theRow["ID"] + "\t" + theRow["FirstName"]);           //}             //DataView view = new DataView(ds.Tables[0]);           foreach (DataRowView drv in view)           {               DataRowView rowView = dv.AddNew();               rowView["序号"] = drv["序号"].ToString();               rowView["员工编号"] =drv["员工编号"].ToString();               rowView["姓名"] = drv["姓名"].ToString;               rowView["身份证号"] = drv["身份证号"].ToString();               rowView["入职时间"] = drv["入职时间"].ToString();           }             //// find the record for Rick           //view.RowFilter = "Name = 'Evy'";           //foreach (DataRowView drv in view)           //{           //    Console.WriteLine(drv["Name"].ToString());           //}           return dv;       }       else       {           return null;       }   }