display multiple columns under the one header in grid view
<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>
