title: display multiple columns under the one header in grid view
body: <p>I am using the grid view in asp.net and i want to show the sub columns under these headers from different table in database.</p>
  
  <p>Example:
  Suppose <strong>Expenditure</strong>(Main header)</p>
  
  <p>Date,Details,Amount(sub columns of expenditure)</p>
  
  <p>and VAT,Charges,Repairs,Salary are the sub columns under Details field.</p>
  
  <p>Kindly please help me.
  Thanks in advance.</p>