Sorting With Summarys

[Nate Bross]

I'm trying to get functionallity similar to the way Outlook sorts messages.

 

Today

Item1

Item2

Item3

Yesterday

Item1

Item2

Item3

Last Week

Item1

Item2

Item3

 

Is this doable with a GridView or should I use a Repeater?

 

Just looking for some ideas to get me going in the right direction.

[Nate Bross]

So I ended up using a nested list, and nested GridViews.

 

Code Behind

 
           List<obj> FoundObjects;

           DataAccess da = new DataAccess(currentSession);
           FoundObjects = da.GetObjects();

           List<List<obj>> OrderedObjects = new List<List<obj>>(50);

           var x = from ojb o in FoundObjects
                   select o.GetType().InvokeMember("sortColumn", System.Reflection.BindingFlags.GetProperty, null, o, null);
           
           var distinct = Enumerable.Distinct(x);

           foreach (object sortObject in distinct)
           {
               OrderedObjects.Add((from obj o in FoundObjects
                                  where t.GetType().InvokeMember("sortColumn", System.Reflection.BindingFlags.GetProperty, null, o, null).ToString().Contains(sortObject.ToString())
                                  select o).ToList());
           }

           dgvObjects.DataSource = OrderedObjects;
           dgvObjects.DataBind();
       }

       // important piece
       protected void dgvObjects_RowDataBound(Object sender, GridViewRowEventArgs e)
       {
           if (e.Row.RowType == DataControlRowType.DataRow)
           {
               List<Task> tasks = (List<Task>)e.Row.DataItem;
               GridView gvSub = (GridView)e.Row.FindControl("dgvObjectsSub");
               gvSub.DataSource = tasks;
               gvSub.DataBind();
           }
       }

 

Markup

<asp:GridView AutoGenerateColumns="false"
               runat="server"
               Width="100%"
               ID="dgvObjects" 
               AllowSorting="true"
               OnRowDataBound="dgvObjects_RowDataBound">
               <Columns>
                   <asp:TemplateField>
                       <ItemTemplate>
                              <asp:GridView runat="server"
                               ID="dgvObjectsSub" 
                               AutoGenerateColumns="False" 
                               CellPadding="4" 
                               AllowPaging="True"
                               AllowSorting="true"
                               BorderStyle="None"
                               BorderWidth="0px" 
                               GridLines="None"
                               Width="100%"
                               Height="100%"
                               PageSize="4"
                               EmptyDataRowStyle-CssClass="listbold"
                               EmptyDataText="No Records Found.">
                           </asp:GridView> 
                       </ItemTemplate>
                   </asp:TemplateField>
               </Columns>
           </asp:GridView>