title: how to insert data to dataset
body: <p>i have this making table:</p>
  
  <pre><code>DataTable WorkTbl()
          {
              DataTable Work= new DataTable("Work"); //Table Name
              DataColumn MAC = new DataColumn("MAC", typeof(string));
              DataColumn ID_OLD = new DataColumn("ID_OLD", typeof(string));
  
              Work.Columns.Add(MAC);
              Work.Columns.Add(ID_OLD);
              return Work;
          }
  </code></pre>
  
  <p>how to insert data to this table and how to convert this table to Dataset ?</p>
  
  <p>thanks in advance</p>