title: how String.Format of RadGrid(Telerik) Sum result in footer?
body: <p>my radgrid column like below :                 </p>
  
  <pre><code>&lt;telerik:GridTemplateColumn FilterControlAltText="Filter TemplateColumn_Benefit" DataField="Benefit"
                      HeaderText="Benefit" UniqueName="TemplateColumn_Benefit" FilterImageToolTip="Filter"&gt;
                      &lt;ItemTemplate&gt;
                          &lt;asp:Label ID="lblBenefitInsideGrd" runat="server" Font-Size="11px" Text='&lt;%# (bool)Convert.IsDBNull(Eval("Benefit")) ? "&lt;span class=\"lblInsideGrd\"&gt;Empty&lt;/span&gt;" : String.Format("{0:#,0 Dollar;#,0- Dollar}", Eval("Benefit")) %&gt;'&gt;&lt;/asp:Label&gt;
                      &lt;/ItemTemplate&gt;
                      &lt;HeaderStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="60px" /&gt;
                      &lt;ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="60px" /&gt;
                  &lt;/telerik:GridTemplateColumn&gt;  
  </code></pre>
  
  <p>how can i String.Format(reformat) Sum result in footer for this template column ?<br>
  mean i want something like {0:#,0 Dollar;#,0- Dollar} in output...  </p>
  
  <p>thanks in advance</p>