title: How to rename the datatable column name without losing the data?
body: <p>Q:</p>
  
  <p>I want to rename my data table column names . </p>
  
  <p>I tried this :</p>
  
  <pre><code>dt.Columns[8].ColumnName = "regnum";
  
  dt.AcceptChanges();
  </code></pre>
  
  <p>but my data is lost after that !!</p>