I have been modifying the small business starter kit.  In the"News" portion of the website, I have a gridview with boundfields rather than a  template in the original code . I am reading all my data from the xml file.   I would like to be able to sort on my columns but I am getting the error message.

The data source 'ObjectDataSourceAllProjects' does not support sorting with IEnumerable data. Automatic sorting is only supported with DataView, DataTable, and DataSet.

Can I not do this?  I have searched this forum for similar posts and got a few matches but I don't understand what they are talking about.  Please help.  Below is my code.

       <div id="content-main-two-column">
            <h1>
                Our Projects</h1>
            <hr />
            <!-- END MAIN COLUMN -->
            <asp:Panel ID="AllProjectsPanel" runat="server">
                <%--Data Source Controls--%>
                <asp:ObjectDataSource ID="ObjectDataSourceAllProjects" runat="server" SelectMethod="GetAllProjects"
                    TypeName="Projects" />
                <asp:GridView ID="GridViewAllProjects" runat="server" AutoGenerateColumns="False" DataSourceID="ObjectDataSourceAllProjects"
                    AllowPaging="True" PageSize="15" OnRowCreated="GridViewAllProjects_RowCreated" BorderWidth="0"
                    BorderColor="white" CellPadding="6"  DataKeyNames="Id" AllowSorting="true" >
                    <HeaderStyle HorizontalAlign="Left" CssClass="ProjectHeader"  />
                    <RowStyle CssClass="ProjectData" />
                    <Columns>
                       <asp:BoundField DataField="title" HeaderText="Project Name" ItemStyle-Width="25%" SortExpression="title" />
                       <asp:BoundField DataField="year" HeaderText="Year" ItemStyle-Width="20%" SortExpression="year"/>
                       <asp:BoundField DataField="location" HeaderText="Location" ItemStyle-Width="20%" SortExpression="location" />
                       <asp:BoundField DataField="content" HeaderText="Project Type" ItemStyle-Width="35%" SortExpression="content" />
                    </Columns>
                    <PagerSettings Mode="NumericFirstLast" Position="TopAndBottom" />
                </asp:GridView>
            </asp:Panel>
        </div>

Hi

Dataset and associated objects implement interfaces that allow the grid view to do sorting etc. I think you may want to either implement a custom comparer, or make use of the SortParameterName property of the ObjectDataSource control.

See http://weblogs.asp.net/pjohnson/archive/2006/02/08/437731.aspx or http://www.codeproject.com/useritems/GridViewObjectDataSource.asp. Both of them give you complete code snippets on how to achieve this.

HTH

VJ

Thank you for your reply.  The articles and examples were helpful and I tried to implement the solution within my application but after a couple of hours I gave up and put all the data into a SQL database.  I understand the concepts but getting it to work within the context of the small business starter kit is beyond my limited programming capabilities.  Thanks again.