title: How to add datarows to an already existing datatable?
body: <p>I am having an datatable which is already populated. Now i want to add few rows to that datatable ,but some of rows might already exist in the datatable.I know its unneccesary but tht is the requirement. </p>
  
  <p>I tried couple of things and got "the row already exist in this table : &amp; this row belongs to some other table" .I also tried importRow ,but i guess  it avoid the duplicates by dafault.</p>
  
  <p>Is there any way to do that .If the datatable has 7 rows and i want to add 3 more rows whether its already exist or not. My goal is to send 10 rows  to the calling function .</p>
  
  <p>Or is there any other approach altogether?</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>Using 
  <code>rowsToAdd.CopyToDataTable(dsCount.Tables[2], LoadOption.PreserveChanges);</code> works but I'm not sure it's the proper way.</p>