I have created gridView in asp.net by writing following code.
<asp:GridView ID="dataGrdVwPatientDetails" runat="server" AutoGenerateColumns="False">
<Columns>
<asp:BoundField HeaderText="Patient" />
<asp:BoundField HeaderText="Modality" />
<asp:BoundField HeaderText="Test" />
<asp:BoundField HeaderText="Time" />
<asp:BoundField HeaderText="Referring Physician" />
<asp:BoundField HeaderText="TotalRs" />
<asp:BoundField HeaderText="Concession" />
<asp:BoundField HeaderText="Paid" />
<asp:BoundField HeaderText="Pending" />
</Columns>
</asp:GridView>
Now I want to add blank row in this gridView so that in future I can add values in that cells.