グリッド ビューのヘッダー テキストに値の合計を表示したいと考えています。
コード:
.aspx
<asp:GridView ID="gvTrHty" runat="server" AutoGenerateColumns="false" Width="100%"
Style="border: 0px solid #cdcdcd; background-color: #cdcdcd;" border="0" CellSpacing="1"
CellPadding="3" OnSorting="gvTrHty_Sorting" AllowSorting="true">
<Columns>
<asp:TemplateField HeaderText="S.No" ItemStyle-VerticalAlign="Middle" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<%#Container.DataItemIndex+1 %>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField HeaderText="Employee" DataField="UserFullName" SortExpression="UserFullName" />
<asp:BoundField HeaderText="Course" DataField="CourseName" SortExpression="CourseName" />
<asp:BoundField HeaderText="Duration(Hrs)" DataField="Duration" SortExpression="Duration" />
<asp:BoundField HeaderText="Start Date" DataField="StartDate" DataFormatString="{0:dd-MMM-yyyy}"
SortExpression="StartDate" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle" />
<asp:BoundField HeaderText="End Date" DataField="EndDate" DataFormatString="{0:dd-MMM-yyyy}"
SortExpression="EndDate" ItemStyle-HorizontalAlign="Center" ItemStyle-VerticalAlign="Middle" />
<asp:BoundField HeaderText="Result" DataField="RESULT" ItemStyle-HorizontalAlign="Center"
SortExpression="RESULT" ItemStyle-VerticalAlign="Middle" />
<asp:BoundField HeaderText="Year" DataField="Year" ItemStyle-HorizontalAlign="Center"
SortExpression="Year" ItemStyle-VerticalAlign="Middle" />
<asp:BoundField HeaderText="Category" DataField="Category" ItemStyle-HorizontalAlign="Center"
SortExpression="Category" ItemStyle-VerticalAlign="Middle" />
<asp:BoundField HeaderText="Sub Category" DataField="SubCategory" SortExpression="SubCategory" />
</Columns>
<HeaderStyle CssClass="header-link grid-Header DataGridFixedHeader gvHead " />
<RowStyle CssClass="gd_odd_txt gvRow" />
</asp:GridView>
以下の画像形式では、Durationの合計を取得したい
何か案は?前もって感謝します